Climate and monthly weather forecastIserlohn, Germany
Climate and monthly weather forecast
Weather in January
January, like December, in Iserlohn, Germany, is an icy winter month, with an average temperature fluctuating between 3.5°C (38.3°F) and -0.5°C (31.1°F). In Iserlohn, Germany, January records the lowest average temperatures, peaking at 3.5°C (38.3°F) and reaching a low of -0.5°C (31.1°F). Weather in January »Weather in February
The last month of the winter, February, is also a wintry month in Iserlohn, Germany, with an average temperature fluctuating between -0.4°C (31.3°F) and 4.6°C (40.3°F). Iserlohn's transition from January to February introduces an average high-temperature of a still wintry 4.6°C (40.3°F), marking an insignificant variation from the 3.5°C (38.3°F). Weather in February »Weather in March
March, the first month of the spring in Iserlohn, is a frosty month, with an average temperature varying between 1.7°C (35.1°F) and 9°C (48.2°F). March's arrival is noted with a slight increase in the average high-temperature, moving from an icy 4.6°C (40.3°F) in February to a chilly 9°C (48.2°F). Weather in March »Weather in April
April is a mild spring month in Iserlohn, Germany, with temperature in the range of an average low of 5°C (41°F) and an average high of 14.3°C (57.7°F). A shift in the average high-temperature is noticeable in April, changing from a frosty 9°C (48.2°F) in March to a mild 14.3°C (57.7°F). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Iserlohn, Germany, with an average temperature ranging between max 17.1°C (62.8°F) and min 7.4°C (45.3°F). The onset of May notes an average high-temperature of an enjoyable 17.1°C (62.8°F), subtly shifted from April's 14.3°C (57.7°F). Weather in May »Weather in June
June, the first month of the summer in Iserlohn, is an agreeable month, with an average temperature fluctuating between 10.7°C (51.3°F) and 20.6°C (69.1°F). June's arrival brings a slight change in high-temperatures, adjusting from a comfortable 17.1°C (62.8°F) in May to a pleasant 20.6°C (69.1°F). Weather in June »Weather in July
July, the same as June, in Iserlohn, Germany, is an agreeable summer month, with an average temperature fluctuating between 12.9°C (55.2°F) and 22.7°C (72.9°F). The months of July and August are noted for their peak temperatures, with an average high-temperature of 22.7°C (72.9°F). Weather in July »Weather in August
August, the last month of the summer in Iserlohn, is another pleasant month, with temperature in the range of an average high of 22.7°C (72.9°F) and an average low of 13.5°C (56.3°F). Iserlohn's temperatures tend to hit their maximum during July and August, with an average high-temperature of 22.7°C (72.9°F). Weather in August »Weather in September
September, the first month of the autumn in Iserlohn, is still a comfortable month, with an average temperature ranging between max 18.5°C (65.3°F) and min 10.1°C (50.2°F). With the onset of September, Iserlohn experiences a modest temperature adjustment, with the average high-temperature gently receding from a pleasant 22.7°C (72.9°F) in August to an enjoyable 18.5°C (65.3°F). Weather in September »Weather in October
October, like September, is another refreshing autumn month in Iserlohn, Germany, with temperature in the range of an average high of 13.6°C (56.5°F) and an average low of 6.6°C (43.9°F). Iserlohn's October weather features a light decline in high-temperatures, reducing from an enjoyable 18.5°C (65.3°F) in September to a mild 13.6°C (56.5°F). Weather in October »Weather in November
November, the last month of the autumn in Iserlohn, is another chilly month, with an average temperature varying between 8.5°C (47.3°F) and 3.6°C (38.5°F). November implies a gentle temperature shift, with average high-temperatures reducing from October's mild 13.6°C (56.5°F) to a frosty 8.5°C (47.3°F). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Iserlohn, Germany, with temperature in the range of an average low of 0.9°C (33.6°F) and an average high of 4.7°C (40.5°F). In Iserlohn, the beginning of December is marked by a marginally lowered average high-temperature, shifting from November's chilly 8.5°C (47.3°F) to a cold 4.7°C (40.5°F). Weather in December »Updated: Feb 14, 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
January stands out as Iserlohn's coldest month, with temperatures ranging between an average high of 3.5°C (38.3°F) and a low of -0.5°C (31.1°F).
January and December, with an average relative humidity of 89%, are most humid months.
Throughout the year, in Iserlohn, there are 190.8 rainfall days, and 597mm (23.5") of precipitation is accumulated.
Months with snowfall are January through May, October through December.
January is the month with the most snowfall in Iserlohn, Germany. Snow falls for 11.1 days and accumulates 116mm (4.57") of snow.
In Iserlohn, Germany, during the entire year, snow falls for 37.4 days and aggregates up to 381mm (15") of snow.
The months with the lowest UV index in Iserlohn, Germany, are January, February, November and December, with an average maximum UV index of 2.
The months with the least rainfall in Iserlohn are April and September Rain falls for 14.8 days and accumulates 32mm (1.26") of rain.
In Iserlohn, snow does not fall in June through September.
With an average of 16h and 30min of daylight, June has the longest days of the year.
June and July, with an average maximum UV index of 5, are months with the highest UV index in Iserlohn, Germany.
Iserlohn's average highest temperatures are recorded in July and August, reaching a high of 22.7°C (72.9°F).
With an average relative humidity of 74%, August is the least humid month.
The month with the most sunshine is August, with an average of 9.7h of sunshine.
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends in Iserlohn, 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.
December is the month with the most rainfall in Iserlohn, Germany. Rain falls for 17.7 days and accumulates 76mm (2.99") of precipitation.
December has the shortest days of the year in Iserlohn, with an average of 7h and 54min of daylight.
With an average of 3.5h of sunshine, December has the least sunshine of the year.
Average temperature
Iserlohn, Germany
The warmest months (with the highest average high temperature) are July and August (22.7°C).
The month with the lowest average high temperature is January (3.5°C).
The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is January (-0.5°C).
Average pressure
Iserlohn, Germany
- Average pressure in January:
1016.2mbar - Average pressure in February:
1015.5mbar - 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:
1017.6mbar - Average pressure in October:
1017mbar - Average pressure in November:
1013.3mbar - Average pressure in December:
1016.4mbar
The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1013.3mbar).
Average wind speed
Iserlohn, Germany
- Average wind speed in January:
14.1km/h - Average wind speed in February:
14.5km/h - Average wind speed in March:
13km/h - Average wind speed in April:
10.8km/h - Average wind speed in May:
10.6km/h - Average wind speed in June:
10.3km/h
- Average wind speed in July:
9.9km/h - Average wind speed in August:
9.7km/h - Average wind speed in September:
10km/h - Average wind speed in October:
11.6km/h - Average wind speed in November:
12.8km/h - Average wind speed in December:
14.7km/h
The windiest month (with the highest average wind speed) is December (14.7km/h).
The calmest month (with the lowest average wind speed) is August (9.7km/h).
Average humidity
Iserlohn, Germany
The months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is August (74%).
Average rainfall
Iserlohn, Germany
The wettest month (with the highest rainfall) is December (76mm).
The driest months (with the least rainfall) are April and September (32mm).
Average rainfall days
Iserlohn, Germany
- Average rainfall days in January:
14.7 days - Average rainfall days in February:
13.3 days - Average rainfall days in March:
15.4 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
18.4 days - Average rainfall days in June:
17.6 days
- Average rainfall days in July:
18.7 days - Average rainfall days in August:
17.4 days - Average rainfall days in September:
13.2 days - Average rainfall days in October:
14.5 days - Average rainfall days in November:
15.1 days - Average rainfall days in December:
17.7 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is September (13.2 days).
Average snowfall
Iserlohn, Germany
The month with the highest snowfall is January (116mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Iserlohn, Germany
- Average snowfall days in January:
11.1 days - Average snowfall days in February:
9.3 days - Average snowfall days in March:
4.7 days - Average snowfall days in April:
1.3 days - Average snowfall days in May:
0.1 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:
0.2 days - Average snowfall days in November:
2.3 days - Average snowfall days in December:
8.4 days
The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Iserlohn, Germany
- Average daylight in January:
8h and 30min - Average daylight in February:
10h and 0min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 54min - Average daylight in May:
15h and 36min - Average daylight in June:
16h and 30min
- Average daylight in July:
16h and 6min - Average daylight in August:
14h and 30min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 42min - Average daylight in November:
8h and 54min - Average daylight in December:
7h and 54min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in January:
3h and 36min - Average sunshine in February:
4h and 0min - Average sunshine in March:
5h and 42min - Average sunshine in April:
8h and 42min - Average sunshine in May:
8h and 36min - Average sunshine in June:
8h and 48min
- Average sunshine in July:
9h and 18min - Average sunshine in August:
9h and 42min - Average sunshine in September:
8h and 18min - Average sunshine in October:
5h and 6min - Average sunshine in November:
4h and 18min - Average sunshine in December:
3h and 30min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days
Iserlohn, Germany
- Average sunshine days in January:
8.9 days - Average sunshine days in February:
9 days - Average sunshine days in March:
12.2 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
9.5 days - Average sunshine days in June:
9.7 days
- Average sunshine days in July:
10.6 days - Average sunshine days in August:
11.7 days - Average sunshine days in September:
13.7 days - Average sunshine days in October:
13.5 days - Average sunshine days in November:
10.9 days - Average sunshine days in December:
6.6 days
The month with the most sunshine days is September (13.7 days).
The month with the least sunshine days is December (6.6 days).
Average UV index
Iserlohn, 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, November and December (UV index 2).
Average cloud cover
Iserlohn, Germany
The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility
Iserlohn, Germany
The months with the highest visibility are April, May, June, July and August (9km).
The months with the lowest visibility are January, February, March, September, October, November and December (8km).
