Climate and monthly weather forecastKeldur, Iceland
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Keldur, Iceland, with an average temperature varying between 2.5°C (36.5°F) and 5.2°C (41.4°F). Keldur experiences a transition to a still icy 5.2°C (41.4°F) in average high-temperatures with the arrival of January, not greatly differing from December's 4.5°C (40.1°F). Weather in January »Weather in February
The last month of the winter, February, is another cold month in Keldur, Iceland, with an average temperature ranging between max 5.2°C (41.4°F) and min 2.2°C (36°F). A high-temperature average of a still icy 5.2°C (41.4°F) characterizes February, identical to January. Weather in February »Weather in March
March, the first month of the spring in Keldur, is also a wintry month, with an average temperature varying between 4.8°C (40.6°F) and 1.9°C (35.4°F). The introduction of March notes a subtle temperature variation to a still wintry 4.8°C (40.6°F) from February's 5.2°C (41.4°F). Weather in March »Weather in April
April is a chilly spring month in Keldur, Iceland, with an average temperature fluctuating between 6.1°C (43°F) and 3.3°C (37.9°F). Keldur experiences an average high-temperature of a chilly 6.1°C (43°F) in April, subtly different from March's 4.8°C (40.6°F). Weather in April »Weather in May
The last month of the spring, May, is also a frosty month in Keldur, Iceland, with an average temperature varying between 7.7°C (45.9°F) and 5.3°C (41.5°F). Keldur's shift from April to May is accompanied by an average high-temperature of a still frosty 7.7°C (45.9°F), a slight deviation from 6.1°C (43°F). Weather in May »Weather in June
The first month of the summer, June, is a cool month in Keldur, Iceland, with an average temperature ranging between min 8.1°C (46.6°F) and max 10.5°C (50.9°F). As Keldur, Iceland, welcomes June, the average high-temperature records at a cool 10.5°C (50.9°F), marking an insignificant deviation from the prior month. Weather in June »Weather in July
July, like June, in Keldur, Iceland, is a cool summer month, with an average temperature ranging between max 12.3°C (54.1°F) and min 9.7°C (49.5°F). Keldur sees the highest average temperatures during the months of July and August, peaking at 12.3°C (54.1°F). Weather in July »Weather in August
August, the last month of the summer in Keldur, is also a fresh month, with an average temperature varying between 12.3°C (54.1°F) and 9.7°C (49.5°F). July and August are the warmest months, with an average high-temperature of 12.3°C (54.1°F). Weather in August »Weather in September
September, the first month of the autumn in Keldur, is still a cool month, with an average temperature fluctuating between 10.8°C (51.4°F) and 8.5°C (47.3°F). Keldur experiences an average high-temperature of a still cool 10.8°C (51.4°F) in September, subtly different from August's 12.3°C (54.1°F). Weather in September »Weather in October
October, like September, is another chilly autumn month in Keldur, Iceland, with an average temperature ranging between max 8.2°C (46.8°F) and min 5.9°C (42.6°F). The commencement of October notes an average high-temperature of a chilly 8.2°C (46.8°F), exhibiting little difference from the previous month. Weather in October »Weather in November
November, the last month of the autumn in Keldur, is another chilly month, with an average temperature fluctuating between 3.8°C (38.8°F) and 6.3°C (43.3°F). Keldur, Iceland, marks the onset of November with an average high-temperature of a still frosty 6.3°C (43.3°F), subtly divergent from October's 8.2°C (46.8°F). Weather in November »Weather in December
December, the first month of the winter in Keldur, is also an icy month, with an average temperature varying between 1.9°C (35.4°F) and 4.5°C (40.1°F). With an average high-temperature of 4.5°C (40.1°F) and an average low-temperature of 1.9°C (35.4°F), December is the coldest month. Weather in December »Updated: Feb 10, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The month with the most rainfall is January, when the rain falls for 19.2 days and typically aggregates up to 130mm (5.12") of precipitation.
In Keldur, during the entire year, the rain falls for 215.2 days and collects up to 1116mm (43.94") of precipitation.
January through May, October through December are months with snowfall in Keldur, Iceland.
In Keldur, Iceland, during the entire year, snow falls for 32.4 days and aggregates up to 397mm (15.63") of snow.
With an average of 2.6h of sunshine, January has the least sunshine of the year in Keldur, Iceland.
The months with the lowest UV index in Keldur are January through April, October through December, with an average maximum UV index of 2.
March is the month with the most snowfall. Snow falls for 7.6 days and accumulates 115mm (4.53") of snow.
The months with the most sunshine are May through July, with an average of 8.6h of sunshine.
June is the month with the least rainfall in Keldur, Iceland. Rain falls for 15 days and accumulates 48mm (1.89") of precipitation.
In Keldur, snow does not fall in June through September.
With an average of 20h and 36min of daylight, June has the longest days of the year.
The warmest period in Keldur, Iceland, with an average high-temperature of 12.3°C (54.1°F), falls in July and August.
The most humid month is July, with an average relative humidity of 82%.
With an average maximum UV index of 4, July is the month with the highest UV index.
Keldur's coldest weather arrives in December, when temperatures average a high of 4.5°C (40.1°F) and a low of 1.9°C (35.4°F).
The least humid month in Keldur, Iceland, is December, with an average relative humidity of 73%.
The month with the shortest days in Keldur is December, with an average of 4h and 36min of daylight.
Keldur does not utilize Daylight Saving Time (DST). GMT timezone is used throughout the entire year.
Average temperature
Keldur, Iceland
The warmest months (with the highest average high temperature) are July and August (12.3°C).
The month with the lowest average high temperature is December (4.5°C).
The months with the highest average low temperature are July and August (9.7°C).
The coldest months (with the lowest average low temperature) are March and December (1.9°C).
Average pressure
Keldur, Iceland
- Average pressure in January:
996.8mbar - Average pressure in February:
998mbar - Average pressure in March:
1003.8mbar - Average pressure in April:
1009.1mbar - Average pressure in May:
1012.1mbar - Average pressure in June:
1013.8mbar
- Average pressure in July:
1009.3mbar - Average pressure in August:
1007.5mbar - Average pressure in September:
1003.1mbar - Average pressure in October:
1003.5mbar - Average pressure in November:
1001.2mbar - Average pressure in December:
998.2mbar
The month with the highest atmospheric pressure is June (1013.8mbar).
The month with the lowest atmospheric pressure is January (996.8mbar).
Average wind speed
Keldur, Iceland
- Average wind speed in January:
33.8km/h - Average wind speed in February:
34.7km/h - Average wind speed in March:
32.2km/h - Average wind speed in April:
30.4km/h - Average wind speed in May:
24.9km/h - Average wind speed in June:
20km/h
- Average wind speed in July:
19.5km/h - Average wind speed in August:
21.1km/h - Average wind speed in September:
27.2km/h - Average wind speed in October:
29.8km/h - Average wind speed in November:
31.7km/h - Average wind speed in December:
33.2km/h
The windiest month (with the highest average wind speed) is February (34.7km/h).
The calmest month (with the lowest average wind speed) is July (19.5km/h).
Average humidity
Keldur, Iceland
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is December (73%).
Average rainfall
Keldur, Iceland
- Average rainfall in January:
130mm - Average rainfall in February:
108mm - Average rainfall in March:
114mm - Average rainfall in April:
89mm - Average rainfall in May:
59mm - Average rainfall in June:
48mm
The wettest month (with the highest rainfall) is January (130mm).
The driest month (with the least rainfall) is June (48mm).
Average rainfall days
Keldur, Iceland
- Average rainfall days in January:
19.2 days - Average rainfall days in February:
15.8 days - Average rainfall days in March:
18 days - Average rainfall days in April:
19.9 days - Average rainfall days in May:
16.6 days - Average rainfall days in June:
15 days
- Average rainfall days in July:
17 days - Average rainfall days in August:
16.8 days - Average rainfall days in September:
21.5 days - Average rainfall days in October:
20.9 days - Average rainfall days in November:
18.9 days - Average rainfall days in December:
15.6 days
The month with the highest number of rainy days is September (21.5 days).
The month with the least rainy days is June (15 days).
Average snowfall
Keldur, Iceland
The month with the highest snowfall is March (115mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Keldur, Iceland
- Average snowfall days in January:
6.1 days - Average snowfall days in February:
5.2 days - Average snowfall days in March:
7.6 days - Average snowfall days in April:
2.8 days - Average snowfall days in May:
0.8 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.5 days - Average snowfall days in November:
3.4 days - Average snowfall days in December:
6 days
The month with the highest number of snowfall days is March (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Keldur, Iceland
- Average daylight in January:
5h and 42min - Average daylight in February:
8h and 36min - Average daylight in March:
11h and 48min - Average daylight in April:
15h and 6min - Average daylight in May:
18h and 24min - Average daylight in June:
20h and 36min
- Average daylight in July:
19h and 24min - Average daylight in August:
16h and 12min - Average daylight in September:
13h and 0min - Average daylight in October:
9h and 48min - Average daylight in November:
6h and 36min - Average daylight in December:
4h and 36min
The month with the longest days is June (Average daylight: 20h and 36min).
The month with the shortest days is December (Average daylight: 4h and 36min).
- Average sunshine in January:
2h and 36min - Average sunshine in February:
3h and 36min - Average sunshine in March:
4h and 42min - Average sunshine in April:
6h and 0min - Average sunshine in May:
8h and 36min - Average sunshine in June:
8h and 36min
- Average sunshine in July:
8h and 36min - Average sunshine in August:
8h and 30min - Average sunshine in September:
5h and 24min - Average sunshine in October:
4h and 42min - Average sunshine in November:
3h and 0min - Average sunshine in December:
3h and 0min
The months with the most sunshine are May, June and July (Average sunshine: 8h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days
Keldur, Iceland
- Average sunshine days in January:
6.9 days - Average sunshine days in February:
5.9 days - Average sunshine days in March:
5.8 days - Average sunshine days in April:
6.7 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
11.9 days - Average sunshine days in August:
11.6 days - Average sunshine days in September:
7.2 days - Average sunshine days in October:
8.2 days - Average sunshine days in November:
8.3 days - Average sunshine days in December:
9.2 days
The month with the most sunshine days is June (12.8 days).
The month with the least sunshine days is March (5.8 days).
Average UV index
Keldur, Iceland
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 2).
Average cloud cover
Keldur, Iceland
The month with the most cloud cover is March (Cloud cover 65).
The months with the least cloud cover are May and August (Cloud cover 55).
Average visibility
Keldur, Iceland
The months with the highest visibility are May and June (10km).
The months with the lowest visibility are January, February, March, April, July, August, September, October, November and December (9km).
