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Contents
- The climate of Alta
- The best time to visit Alta
- The worst time to visit Alta
- Spring weather in Alta
- Summer weather in Alta
- Autumn weather in Alta
- Winter weather in Alta
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Alta
Alta, Norway, according to the Köppen climate classification, falls under category Dfc, signifying a subarctic climate. It is characterized by severe winters, no dry season, and a cool summer. The geographic locale results in broad fluctuations in weather parameters across the year.
Temperature ranges significantly throughout the year in Alta. The noticeably coldest month is February, with temperatures dropping down to -11.9°C (10.6°F) during nights and barely touching -6.7°C (19.9°F) during daytime. Conversely, the relatively warmer period arrives in July with night temperatures hitting 8.7°C (47.7°F) and daytime reaching a peak at 14.4°C (57.9°F).
Variances in Alta's relative humidity span from 75% in June to 89% in April. On average, the city has a high relative humidity throughout the year. The town also experiences a common pattern of increased rainfall from 16mm (0.63") in February to 44mm (1.73") in July. However, snowfall, which is a common phenomenon, sees the most volume, 137mm (5.39"), in March and least in July.
Wind speed tends to be relatively constant across the year in Alta, with the highest average speed hitting 17.5km/h (10.9mph) in March, while in August dropping to the lowest at 11.8km/h (7.3mph).
Visibility in Alta remains quite uniform throughout the year, maintaining 8km (5mi) to 9km (5.6mi) in general. The frequency of days with sunlight decreases to a relative low of 9.1 days in June and peaks at 17.3 days in January.
Temperature ranges significantly throughout the year in Alta. The noticeably coldest month is February, with temperatures dropping down to -11.9°C (10.6°F) during nights and barely touching -6.7°C (19.9°F) during daytime. Conversely, the relatively warmer period arrives in July with night temperatures hitting 8.7°C (47.7°F) and daytime reaching a peak at 14.4°C (57.9°F).
Variances in Alta's relative humidity span from 75% in June to 89% in April. On average, the city has a high relative humidity throughout the year. The town also experiences a common pattern of increased rainfall from 16mm (0.63") in February to 44mm (1.73") in July. However, snowfall, which is a common phenomenon, sees the most volume, 137mm (5.39"), in March and least in July.
Wind speed tends to be relatively constant across the year in Alta, with the highest average speed hitting 17.5km/h (10.9mph) in March, while in August dropping to the lowest at 11.8km/h (7.3mph).
Visibility in Alta remains quite uniform throughout the year, maintaining 8km (5mi) to 9km (5.6mi) in general. The frequency of days with sunlight decreases to a relative low of 9.1 days in June and peaks at 17.3 days in January.
The best time to visit Alta
The prime time for explorers to experience Alta's climatic charm is arguably between June to August. During these months, average temperatures range from 4.8°C (40.6°F) to 8.7°C (47.7°F) at night and from 9.4°C (48.9°F) to 14.4°C (57.9°F) during the day. One can also expect relatively lower humidity during these months, 75%, compared to other periods within the year. Notably, the hours of daylight extend dramatically during the summer period, reaching a high of 24 hours in June, providing extra time for outdoor activities.
The worst time to visit Alta
The time period between November to January can prove to be quite challenging for visitors. These months witness the city's lowermost temperatures from -8.2°C (17.2°F) to -5.4°C (22.3°F) at night and from -4.1°C (24.6°F) to -1.7°C (28.9°F) during the day. Furthermore, the daylight duration is substantially reduced, hitting a minimum duration of zero hours in December. Light visibility also shrinks during these months, making outdoor activities less appealing.
Spring weather in Alta
From March to May, Alta experiences spring. This period is marked by temperatures oscillating between -9.6°C (14.7°F) to -0.5°C (31.1°F) during the nights and from -4°C (24.8°F) to 4.4°C (39.9°F) during the day. May sees rainfall increasing from 27mm (1.06") to 31mm (1.22") in contrast to a dramatic drop in snowfall from 137mm (5.39") to 46mm (1.81"). The daylight hours significantly increase from 11.7 hours in March to 22.3 hours in May.
Summer weather in Alta
Summers in Alta span from June to August. The temperatures during these months perceptibly improve from 4.8°C (40.6°F) to 7.3°C (45.1°F) at nighttime and from 9.4°C (48.9°F) to 12.9°C (55.2°F) during daylight hours. Rainfall has a general upward trend, ranging from 35mm (1.38") in June to 33mm (1.3") in August. Although snowfall is absent during the summer weather, daylight is readily abundant reaching a maximum of 24 hours in June.
Autumn weather in Alta
Autumn in Alta begins from September extending till November. Temperatures during this period shift from 4.5°C (40.1°F) to -5.4°C (22.3°F) at night and from 9.2°C (48.6°F) to -1.7°C (28.9°F) during the day. Rainfall is varied from 23mm (0.91") in September to 22mm (0.87") in November. Snowfall also starts to pick up, significantly rising from 6mm (0.24") to 99mm (3.9"). Daylight duration decreases rapidly from 13.4 hours in September to 3.4 hours in November.
Winter weather in Alta
The winter season starts in December and ends in February. During this timeframe, temperatures dip down from -8.2°C (17.2°F) to -11.9°C (10.6°F) in the nighttime and from -4.1°C (24.6°F) to -6.7°C (19.9°F) in the daytime. Rainfall also drops from 19mm (0.75") to 16mm (0.63") while snowfall increases dramatically from 91mm (3.58") in December to 94mm (3.7") in January. Daylight hours are at their lowest, falling from zero hours in December to 7.3 hours in February.
Weather in January
Kickstarting the year in Alta, Norway is the chill of January, a month known for its minimal daylight hours. Esker-white landscapes dominate the scenery as frequent snowfall presents a frozen panorama. January sees the most snowfall in the year, registering an average of 94mm (3.7"). Weather in January »
Weather in February
Moving into February, the weather remains fairly comparable to January with persistent icy conditions. The city is steeped in a cold embrace with snowfall continuing to be considerable, though a slight decrease from January. February, however, differs with marginally prolonged daylight hours making the days not as short as those in January. Weather in February »
Weather in March
March, the first month of the spring in Alta, is also a subzero cold month, with an average temperature fluctuating between -9.6°C (14.7°F) and -4°C (24.8°F). Alta, Norway, records a slight change with March's average high-temperatures adjusting to a still subzero cold -4°C (24.8°F) from February's -6.7°C (19.9°F). Weather in March »
Weather in April
April in Alta, Norway signifies the arrival of spring, with a considerable leap in temperatures from March. Amid these warmer conditions, sprinkles of moderate rainfall are not uncommon, instilling freshness to the environment. The snowfall drifts down to a mere 99mm (3.9"), marking a substantial reduction from past months. Weather in April »
Weather in May
The renowned Scandinavian summer is ushered in with May, and Alta, Norway is no exception to this transition. The landscape gradually shifts from a frigid white to myriad hues of green, implying the resurgence of flora. The month is marked by a significant dip in the snowfall, measuring only 46mm (1.81"). Weather in May »
Weather in June
June in Alta witnesses a full bloom of the summer, with the temperature escalating further from May. This period denotes the peak of the midnight sun phenomenon, a natural wonder where the sun is visible even at midnight. Without a trace of snowfall, the month is distinguished by the maximum average rainfall of the year, recording 35mm (1.38"). Weather in June »
Weather in July
July marks the height of summer in Alta, Norway with temperatures higher than the preceding months. Despite the warmth, the climate remains pleasant and does not reach intolerable extremes. Although the rainfall becomes more recurrent, registering an average of 44mm (1.73"), July is devoid of any snowfall. Weather in July »
Weather in August
The city of Alta moves into the late summer in August with the weather retaining its warm quality. Even though the temperatures are comparatively high, the tail-end of summer comes with a subtle dip. Instead of snow, a decent amount of rain maintains the verdant landscapes keeping the surroundings fresh. Weather in August »
Weather in September
September in Alta marks the onset of fall, with weather patterns gradually shifting towards the cooler side. The dip in temperatures gives a hint of the imminent winter, although the month manages to maintain pleasant conditions. Weather in September »
Weather in October
October brings in a clear chill in Alta, Norway, with temperatures slipping further down from September. The landscape begins re-donning its icy attire as snowfall climbs up resulting in a white panorama. One of the aspects that distinctly separates October from the preceding month is rainfall, indicating a wetter phase. Weather in October »
Weather in November
As Alta steps into November, it signifies the returning hold of winter. The weather becomes visibly austere as temperatures further stoop. The snowfall increases from October and matches the January level at 99mm (3.9"), covering the city in a thick sheet of white. Weather in November »
Weather in December
Closing the year in Alta, Norway is December, which is prominently cold accompanied by robust snowy climates. While temperatures remain distinctively frosty, precipitation majorly takes the form of snowfall. Similar to the year's opening month, December's snowfall touches a high averaging 91mm (3.58"). Weather in December »
[Resources]Frequently asked questions
What is the coldest time of year in Alta?
January and February bring Alta's average lowest temperatures, reaching a high of -6.7°C (19.9°F).
How much does it rain in Alta?
In Alta, during the entire year, the rain falls for 113.3 days and collects up to 318mm (12.52") of precipitation.
When does it snow in Alta?
Months with snowfall are January through June, September through December.
How many days does it snow in Alta?
Throughout the year, there are 90.6 snowfall days, and 728mm (28.66") of snow is accumulated.
What are the months with the lowest UV index in Alta?
January through April, October through December, with an average maximum UV index of 1, are months with the lowest UV index.
What is the driest month in Alta?
February is the month with the least rainfall in Alta. Rain falls for 4.3 days and accumulates 16mm (0.63") of precipitation.
When is the sea coldest in Alta?
The months with the coldest seawater in Alta are February through April, with an average sea temperature of 4°C (39.2°F).
What is the snowiest month in Alta?
March is the month with the most snowfall. Snow falls for 14.6 days and accumulates 137mm (5.39") of snow.
What is the most humid month in Alta?
With an average relative humidity of 89%, April is the most humid month.
What are the least humid months in Alta?
June and July, with an average relative humidity of 75%, are the least humid months.
What is the month with the shortest days in Alta?
June and December, with an average of 0h and 0min of daylight, are months with the shortest days in Alta, Norway.
What are the warmest months in Alta?
In Alta, July records the average highest temperatures, peaking at 14.4°C (57.9°F) and reaching a low of 8.7°C (47.7°F).
What is the wettest month in Alta?
July is the month with the most rainfall in Alta, Norway. Rain falls for 16.8 days and accumulates 44mm (1.73") of precipitation.
When it does not snow in Alta?
In Alta, Norway, snow does not fall in July and August.
What is the month with the highest UV index in Alta?
With an average maximum UV index of 4, July is the month with the highest UV index in Alta.
When is the sea warmest in Alta?
August is the month with the warmest seawater, with an average sea temperature of 10°C (50°F).
When are the longest days in Alta?
The month with the longest days in Alta is August, with an average of 18h and 12min of daylight.
What month has the most sunshine in Alta?
The month with the most sunshine is August, with an average of 8.6h of sunshine.
When is Daylight Saving Time (DST) in Alta?
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends in Alta, Norway, and the time zone changes from CEST to CET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 02:00, and the time zone reverts from CET to CEST.
What is the month with the least sunshine in Alta?
December has the least sunshine of the year, with an average of 0.4h of sunshine.
Average temperature
Alta, Norway
The warmest month (with the highest average high temperature) is July (14.4°C).
The months with the lowest average high temperature are January and February (-6.7°C).
- Average low temperature in January:
-11.4°C - Average low temperature in February:
-11.9°C - Average low temperature in March:
-9.6°C - Average low temperature in April:
-6.3°C - Average low temperature in May:
-0.5°C - Average low temperature in June:
4.8°C
The month with the highest average low temperature is July (8.7°C).
The coldest month (with the lowest average low temperature) is February (-11.9°C).
Average pressure
Alta, Norway
- Average pressure in January:
1006.1mbar - Average pressure in February:
1006mbar - Average pressure in March:
1004.3mbar - Average pressure in April:
1010.1mbar - Average pressure in May:
1014.1mbar - Average pressure in June:
1012.1mbar
- Average pressure in July:
1011.7mbar - Average pressure in August:
1011mbar - Average pressure in September:
1009.4mbar - Average pressure in October:
1009mbar - Average pressure in November:
1006mbar - Average pressure in December:
1001.5mbar
The month with the highest atmospheric pressure is May (1014.1mbar).
The month with the lowest atmospheric pressure is December (1001.5mbar).
Average wind speed
Alta, Norway
- Average wind speed in January:
17.4km/h - Average wind speed in February:
16.6km/h - Average wind speed in March:
17.5km/h - Average wind speed in April:
13.5km/h - Average wind speed in May:
13.2km/h - Average wind speed in June:
12.8km/h
- Average wind speed in July:
12.2km/h - Average wind speed in August:
11.8km/h - Average wind speed in September:
13.5km/h - Average wind speed in October:
13.9km/h - Average wind speed in November:
16.8km/h - Average wind speed in December:
16.8km/h
The windiest month (with the highest average wind speed) is March (17.5km/h).
The calmest month (with the lowest average wind speed) is August (11.8km/h).
Average humidity
Alta, Norway
The month with the highest relative humidity is April (89%).
The months with the lowest relative humidity are June and July (75%).
Average rainfall
Alta, Norway
The wettest month (with the highest rainfall) is July (44mm).
The driest month (with the least rainfall) is February (16mm).
Average rainfall days
Alta, Norway
- Average rainfall days in January:
4.1 days - Average rainfall days in February:
4.3 days - Average rainfall days in March:
5.2 days - Average rainfall days in April:
8.2 days - Average rainfall days in May:
11.8 days - Average rainfall days in June:
17.5 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
13.3 days - Average rainfall days in September:
11.4 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
6.4 days - Average rainfall days in December:
3.8 days
The month with the highest number of rainy days is June (17.5 days).
The month with the least rainy days is December (3.8 days).
Average snowfall
Alta, Norway
The month with the highest snowfall is March (137mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days
Alta, Norway
- Average snowfall days in January:
11.8 days - Average snowfall days in February:
11.5 days - Average snowfall days in March:
14.6 days - Average snowfall days in April:
12 days - Average snowfall days in May:
7.7 days - Average snowfall days in June:
1.5 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.6 days - Average snowfall days in October:
8.9 days - Average snowfall days in November:
9.9 days - Average snowfall days in December:
12.1 days
The month with the highest number of snowfall days is March (14.6 days).
The months with the least snowfall days are July and August (0 days).
Average sea temperature
Alta, Norway
The best month for swimming (with the highest average sea temperature) is August (10°C).
The coldest months (with the lowest average sea temperature) are February, March and April (4°C).
Average daylight / Average sunshine
Alta, Norway
- Average daylight in January:
1h and 3min - Average daylight in February:
7h and 2min - Average daylight in March:
11h and 4min - Average daylight in April:
16h and 2min - Average daylight in May:
10h and 4min - Average daylight in June:
0h and 0min
- Average daylight in July:
3h and 4min - Average daylight in August:
18h and 1min - Average daylight in September:
13h and 2min - Average daylight in October:
8h and 5min - Average daylight in November:
3h and 2min - Average daylight in December:
0h and 0min
The month with the longest days is August (Average daylight: 18h and 12min).
The months with the shortest days are June and December (Average daylight: 0h and 0min).
- Average sunshine in January:
1h and 0min - Average sunshine in February:
3h and 3min - Average sunshine in March:
4h and 1min - Average sunshine in April:
6h and 1min - Average sunshine in May:
3h and 4min - Average sunshine in June:
0h and 3min
- Average sunshine in July:
1h and 5min - Average sunshine in August:
8h and 4min - Average sunshine in September:
6h and 2min - Average sunshine in October:
3h and 5min - Average sunshine in November:
2h and 1min - Average sunshine in December:
0h and 2min
The month with the most sunshine is August (Average sunshine: 8h and 36min).
The month with the least sunshine is December (Average sunshine: 0h and 24min).
Average sunshine days
Alta, Norway
- Average sunshine days in January:
17.3 days - Average sunshine days in February:
16 days - Average sunshine days in March:
13.1 days - Average sunshine days in April:
12.7 days - Average sunshine days in May:
11.4 days - Average sunshine days in June:
9.1 days
- Average sunshine days in July:
11.1 days - Average sunshine days in August:
14.4 days - Average sunshine days in September:
15.3 days - Average sunshine days in October:
14.2 days - Average sunshine days in November:
15.5 days - Average sunshine days in December:
16.7 days
The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is June (9.1 days).
Average UV index
Alta, Norway
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).
Average cloud cover
Alta, Norway
The month with the most cloud cover is March (Cloud cover 67).
The months with the least cloud cover are July, August and September (Cloud cover 57).
Average visibility
Alta, Norway
The months with the highest visibility are June, July, August, September, October, November and December (9km).
The month with the lowest visibility is April (7km).
Alta, Norway
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