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Contents
- 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 daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, is a wintry winter month in Altena, Germany, with temperature in the range of an average high of 3.2°C (37.8°F) and an average low of -0.9°C (30.4°F). In Altena, January is the month with the lowest recorded average temperatures, measuring a high of 3.2°C (37.8°F) and a low of -0.9°C (30.4°F). Weather in January »
Weather in February
February, the last month of the winter in Altena, is another cold month, with an average temperature fluctuating between 4.1°C (39.4°F) and -0.8°C (30.6°F). Altena experiences an average high-temperature of a still icy 4.1°C (39.4°F) in February, marking an insignificant shift from 3.2°C (37.8°F) in January. Weather in February »
Weather in March
March, the first month of the spring in Altena, is a chilly month, with an average temperature fluctuating between 1.3°C (34.3°F) and 8.4°C (47.1°F). The shift from February to March sees a slight increase in the average high-temperature, transitioning from an icy 4.1°C (39.4°F) to a frosty 8.4°C (47.1°F). Weather in March »
Weather in April
April is a mild spring month in Altena, Germany, with an average temperature fluctuating between 14.1°C (57.4°F) and 4.6°C (40.3°F). April's arrival coincides with a temperature rise, moving from March's chilly 8.4°C (47.1°F) to a refreshing 14.1°C (57.4°F). Weather in April »
Weather in May
May, the last month of the spring in Altena, is an enjoyable month, with an average temperature ranging between min 6.9°C (44.4°F) and max 16.7°C (62.1°F). At the start of May, Altena's average high-temperature reaches a still refreshing 16.7°C (62.1°F), subtly different from the preceding month. Weather in May »
Weather in June
The first month of the summer, June, is a pleasant month in Altena, Germany, with temperature in the range of an average low of 10.3°C (50.5°F) and an average high of 20.2°C (68.4°F). A minor escalation in the average high-temperature is seen with the onset of June, moving from an enjoyable 16.7°C (62.1°F) in May to a pleasant 20.2°C (68.4°F). Weather in June »
Weather in July
July, like June, is another pleasant summer month in Altena, Germany, with temperature in the range of an average low of 12.3°C (54.1°F) and an average high of 22.3°C (72.1°F). On the advent of July, Altena's average high-temperature exhibits a minor adjustment to a still pleasant 22.3°C (72.1°F) from June's 20.2°C (68.4°F). Weather in July »
Weather in August
August, the last month of the summer in Altena, is also an agreeable month, with an average temperature ranging between min 12.6°C (54.7°F) and max 22.4°C (72.3°F). Altena's August weather, with an average high temperature of 22.4°C (72.3°F) and an average low temperature of 12.6°C (54.7°F), tends to be the warmest of the year. Weather in August »
Weather in September
September, the first month of the autumn in Altena, is still a comfortable month, with an average temperature fluctuating between 9.6°C (49.3°F) and 18.1°C (64.6°F). Altena observes a small decrease in the average high-temperature with the arrival of September, falling from August's agreeable 22.4°C (72.3°F) to a comfortable 18.1°C (64.6°F). Weather in September »
Weather in October
October, like September, is a moderate autumn month in Altena, Germany, with an average temperature fluctuating between 6.2°C (43.2°F) and 13°C (55.4°F). The beginning of October involves a decrease in the average high-temperature, transitioning from 18.1°C (64.6°F) in September to a still refreshing 13°C (55.4°F). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Altena, Germany, with temperature in the range of an average high of 8.1°C (46.6°F) and an average low of 3.2°C (37.8°F). November brings a slight decrease in the average high-temperature, shifting from a refreshing 13°C (55.4°F) in October to a frosty 8.1°C (46.6°F). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Altena, Germany, with an average temperature ranging between min 0.3°C (32.5°F) and max 4.5°C (40.1°F). The transition into December is accompanied by a slight temperature decrease, with the average high-temperature shifting from a frosty 8.1°C (46.6°F) in November to a wintry 4.5°C (40.1°F). Weather in December »
Frequently asked questions
What month is the coldest in Altena?
In Altena, Germany, the average lowest temperatures are observed in January, with a high of 3.2°C (37.8°F) and a low of -0.9°C (30.4°F).
How much does it rain in Altena?
Throughout the year, in Altena, there are 173.8 rainfall days, and 605mm (23.82") of precipitation is accumulated.
When does it snow in Altena?
Months with snowfall in Altena are January through May, October through December.
What is the snowiest month in Altena?
January is the month with the most snowfall. Snow falls for 11.7 days and accumulates 143mm (5.63") of snow.
How many days does it snow in Altena?
In Altena, during the entire year, snow falls for 43.4 days and aggregates up to 536mm (21.1") of snow.
What is the month with the lowest UV index in Altena?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Altena, Germany.
What is the least humid month in Altena?
The months with the lowest humidity are April and August, with an average relative humidity of 76%.
What is the driest month in Altena?
April is the month with the least rainfall in Altena, Germany. Rain falls for 13.5 days and accumulates 29mm (1.14") of precipitation.
When it does not snow in Altena?
June through September are months without snowfall in Altena.
When are the longest days in Altena?
With an average of 16h and 30min of daylight, June has the longest days of the year.
What are the months with the highest UV index in Altena?
The months with the highest UV index are June and July, with an average maximum UV index of 5.
What is the warmest month in Altena?
In Altena, the peak temperatures are generally noted in August, averaging a high of 22.4°C (72.3°F) and a low of 12.6°C (54.7°F).
What month has the most sunshine in Altena?
With an average of 9.5h of sunshine, August has the most sunshine of the year.
When is Daylight Saving Time (DST) in Altena?
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends in Altena, Germany, 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 most humid month in Altena?
With an average relative humidity of 91%, December is the most humid month.
What is the rainiest month in Altena?
December is the month with the most rainfall. Rain falls for 13.4 days and accumulates 73mm (2.87") of precipitation.
What is the month with the shortest days in Altena?
With an average of 8h and 0min of daylight, December has the shortest days of the year.
What is the month with the least sunshine in Altena?
With an average of 3.2h of sunshine, December has the least sunshine of the year in Altena, Germany.
Average temperature
Altena, Germany
The warmest month (with the highest average high temperature) is August (22.4°C).
The month with the lowest average high temperature is January (3.2°C).
The month with the highest average low temperature is August (12.6°C).
The coldest month (with the lowest average low temperature) is January (-0.9°C).
Average pressure
Altena, Germany
- Average pressure in January:
1016.4mbar - Average pressure in February:
1015.6mbar - Average pressure in March:
1016.2mbar - Average pressure in April:
1015.9mbar - Average pressure in May:
1016.2mbar - Average pressure in June:
1016mbar
- Average pressure in July:
1015.5mbar - Average pressure in August:
1015.8mbar - Average pressure in September:
1017.7mbar - Average pressure in October:
1017.1mbar - Average pressure in November:
1013.4mbar - Average pressure in December:
1016.6mbar
The month with the highest atmospheric pressure is September (1017.7mbar).
The month with the lowest atmospheric pressure is November (1013.4mbar).
Average wind speed
Altena, Germany
- Average wind speed in January:
13.6km/h - Average wind speed in February:
14km/h - Average wind speed in March:
12.8km/h - Average wind speed in April:
10.6km/h - Average wind speed in May:
10.4km/h - Average wind speed in June:
10.1km/h
- Average wind speed in July:
9.6km/h - Average wind speed in August:
9.4km/h - Average wind speed in September:
9.6km/h - Average wind speed in October:
11.2km/h - Average wind speed in November:
12.3km/h - Average wind speed in December:
13.9km/h
The windiest month (with the highest average wind speed) is February (14km/h).
The calmest month (with the lowest average wind speed) is August (9.4km/h).
Average humidity
Altena, Germany
The month with the highest relative humidity is December (91%).
The months with the lowest relative humidity are April and August (76%).
Average rainfall
Altena, Germany
The wettest month (with the highest rainfall) is December (73mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days
Altena, Germany
- Average rainfall days in January:
12 days - Average rainfall days in February:
9.4 days - Average rainfall days in March:
13.3 days - Average rainfall days in April:
13.5 days - Average rainfall days in May:
16.9 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
18.7 days - Average rainfall days in August:
16.9 days - Average rainfall days in September:
14.6 days - Average rainfall days in October:
13.9 days - Average rainfall days in November:
14.4 days - Average rainfall days in December:
13.4 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is February (9.4 days).
Average snowfall
Altena, Germany
The month with the highest snowfall is January (143mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Altena, Germany
- Average snowfall days in January:
11.7 days - Average snowfall days in February:
9.5 days - Average snowfall days in March:
5.8 days - Average snowfall days in April:
1.5 days - Average snowfall days in May:
0.5 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:
0.4 days - Average snowfall days in November:
3.8 days - Average snowfall days in December:
10.2 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Altena, Germany
- Average daylight in January:
8h and 3min - Average daylight in February:
10h and 0min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 5min - Average daylight in May:
15h and 4min - Average daylight in June:
16h and 3min
- Average daylight in July:
16h and 1min - Average daylight in August:
14h and 3min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 4min - Average daylight in November:
8h and 5min - Average daylight in December:
8h and 0min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in January:
3h and 2min - Average sunshine in February:
3h and 5min - Average sunshine in March:
5h and 4min - Average sunshine in April:
8h and 4min - Average sunshine in May:
8h and 3min - Average sunshine in June:
8h and 5min
- Average sunshine in July:
9h and 1min - Average sunshine in August:
9h and 3min - Average sunshine in September:
8h and 1min - Average sunshine in October:
4h and 5min - Average sunshine in November:
4h and 1min - Average sunshine in December:
3h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days
Altena, Germany
- Average sunshine days in January:
11.3 days - Average sunshine days in February:
11.8 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
14.4 days - Average sunshine days in May:
11.4 days - Average sunshine days in June:
10.8 days
- Average sunshine days in July:
10.3 days - Average sunshine days in August:
11.8 days - Average sunshine days in September:
13.4 days - Average sunshine days in October:
14 days - Average sunshine days in November:
12 days - Average sunshine days in December:
9.5 days
The month with the most sunshine days is April (14.4 days).
The month with the least sunshine days is December (9.5 days).
Average UV index
Altena, Germany
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Altena, Germany
The month with the most cloud cover is December (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility
Altena, Germany
The months with the highest visibility are April, June and August (9km).
The months with the lowest visibility are January and December (7km).
Altena, Germany
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