Climate and monthly weather forecastHennef, Germany
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Hennef, Germany, with an average temperature ranging between max 4°C (39.2°F) and min -0.3°C (31.5°F). In Hennef, January records the lowest average temperatures, peaking at 4°C (39.2°F) and reaching a low of -0.3°C (31.5°F). Weather in January »Weather in February
February, the last month of the winter in Hennef, is also a wintry month, with an average temperature varying between -0.2°C (31.6°F) and 5.2°C (41.4°F). February welcomes an average high-temperature of a still icy 5.2°C (41.4°F), not much different from the preceding month. Weather in February »Weather in March
March, the first month of the spring in Hennef, is a chilly month, with an average temperature ranging between max 9.7°C (49.5°F) and min 2°C (35.6°F). March's onset brings a subtle temperature rise, moving from an icy 5.2°C (41.4°F) in February to a frosty 9.7°C (49.5°F). Weather in March »Weather in April
April in Hennef, Germany, is a moderate spring month, with an average temperature fluctuating between 5°C (41°F) and 15.1°C (59.2°F). April's onset brings a rise in the average high-temperature, moving from a frosty 9.7°C (49.5°F) in March to a mild 15.1°C (59.2°F). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Hennef, Germany, with an average temperature ranging between min 7.7°C (45.9°F) and max 17.8°C (64°F). May notes an average high-temperature of a still refreshing 17.8°C (64°F), subtly differing from April's 15.1°C (59.2°F). Weather in May »Weather in June
June, the first month of the summer in Hennef, is an agreeable month, with an average temperature fluctuating between 21.3°C (70.3°F) and 10.8°C (51.4°F). June introduces a marginal temperature uplift, with average high-temperatures adjusting from May's enjoyable 17.8°C (64°F) to an agreeable 21.3°C (70.3°F). Weather in June »Weather in July
July in Hennef, Germany, is a warm summer month, with an average temperature varying between 23.5°C (74.3°F) and 13°C (55.4°F). In Hennef, July is the month with the highest recorded average temperatures, measuring a high of 23.5°C (74.3°F) and a low of 13°C (55.4°F). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Hennef, Germany, with temperature in the range of an average high of 23.3°C (73.9°F) and an average low of 13.3°C (55.9°F). August is marked by an average high-temperature of a still warm 23.3°C (73.9°F), almost identical to the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Hennef, is still a comfortable month, with temperature in the range of an average low of 9.8°C (49.6°F) and an average high of 18.9°C (66°F). Hennef experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a moderately hot 23.3°C (73.9°F) in August to a comfortable 18.9°C (66°F). Weather in September »Weather in October
October, like September, is another mild autumn month in Hennef, Germany, with an average temperature ranging between min 6.6°C (43.9°F) and max 14°C (57.2°F). Hennef, Germany, observes a small decrease in the average high-temperature with the arrival of October, falling from September's refreshing 18.9°C (66°F) to a mild 14°C (57.2°F). Weather in October »Weather in November
November, the last month of the autumn in Hennef, is also a frosty month, with temperature in the range of an average low of 3.7°C (38.7°F) and an average high of 8.9°C (48°F). In Hennef, the average high-temperature in November drops from a moderate 14°C (57.2°F) in October to a chilly 8.9°C (48°F). Weather in November »Weather in December
December, the first month of the winter in Hennef, is also an icy month, with temperature in the range of an average low of 1.2°C (34.2°F) and an average high of 5.4°C (41.7°F). Transition into December subtly marks a drop in the average high-temperature, moderately moving from a chilly 8.9°C (48°F) in November to an icy 5.4°C (41.7°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
With average temperatures fluctuating between a high of 4°C (39.2°F) and a low of -0.3°C (31.5°F), January stands out as the coldest month.
In Hennef, during the entire year, the rain falls for 156 days and collects up to 305mm (12.01") of precipitation.
Months with snowfall are January through March, November and December.
Throughout the year, in Hennef, there are 19.5 snowfall days, and 98mm (3.86") of snow is accumulated.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Hennef.
The month with the most snowfall in Hennef, Germany, is February, when snow falls for 5.3 days and typically aggregates up to 35mm (1.38") of snow.
April and September are months with the least rain in Hennef, Germany, when the rain falls for 11.8 days and typically aggregates up to 17mm (0.67") of rain.
April through October are months without snowfall.
The month with the longest days in Hennef is June, with an average of 16h and 24min of daylight.
The months with the highest UV index in Hennef, Germany, are June and July, with an average maximum UV index of 5.
The month of July sees the average highest temperatures in Hennef, reaching 23.5°C (74.3°F) at the peak and 13°C (55.4°F) at the low.
The months with the lowest humidity are July and August, with an average relative humidity of 73%.
July has the most sunshine of the year, with an average of 9.9h of sunshine.
The month with the most rainfall is August, when the rain falls for 14.3 days and typically aggregates up to 33mm (1.3") of precipitation.
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends in Hennef, 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.
With an average relative humidity of 89%, December is the most humid month in Hennef, Germany.
The month with the shortest days in Hennef, Germany, is December, with an average of 8h and 0min of daylight.
December has the least sunshine of the year, with an average of 3.8h of sunshine.
Average temperature
Hennef, Germany
The warmest month (with the highest average high temperature) is July (23.5°C).
The month with the lowest average high temperature is January (4°C).
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (-0.3°C).
Average pressure
Hennef, Germany
- Average pressure in January:
1016.8mbar - Average pressure in February:
1015.9mbar - Average pressure in March:
1016.3mbar - Average pressure in April:
1015.8mbar - Average pressure in May:
1016.1mbar - Average pressure in June:
1016mbar
- Average pressure in July:
1015.5mbar - Average pressure in August:
1015.9mbar - Average pressure in September:
1017.8mbar - Average pressure in October:
1017.2mbar - Average pressure in November:
1013.6mbar - Average pressure in December:
1017.1mbar
The month with the highest atmospheric pressure is September (1017.8mbar).
The month with the lowest atmospheric pressure is November (1013.6mbar).
Average wind speed
Hennef, Germany
- Average wind speed in January:
12.4km/h - Average wind speed in February:
12.8km/h - Average wind speed in March:
12km/h - Average wind speed in April:
10.2km/h - Average wind speed in May:
9.9km/h - Average wind speed in June:
9.7km/h
- Average wind speed in July:
9.3km/h - Average wind speed in August:
8.9km/h - Average wind speed in September:
9.1km/h - Average wind speed in October:
10.5km/h - Average wind speed in November:
11.5km/h - Average wind speed in December:
12.5km/h
The windiest month (with the highest average wind speed) is February (12.8km/h).
The calmest month (with the lowest average wind speed) is August (8.9km/h).
Average humidity
Hennef, Germany
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (73%).
Average rainfall
Hennef, Germany
The wettest month (with the highest rainfall) is August (33mm).
The driest months (with the least rainfall) are April and September (17mm).
Average rainfall days
Hennef, Germany
- Average rainfall days in January:
12.6 days - Average rainfall days in February:
10.4 days - Average rainfall days in March:
13.6 days - Average rainfall days in April:
11.8 days - Average rainfall days in May:
14.7 days - Average rainfall days in June:
14.5 days
- Average rainfall days in July:
15.6 days - Average rainfall days in August:
14.3 days - Average rainfall days in September:
10.5 days - Average rainfall days in October:
11.7 days - Average rainfall days in November:
12.7 days - Average rainfall days in December:
13.6 days
The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is February (10.4 days).
Average snowfall
Hennef, Germany
The month with the highest snowfall is February (35mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days
Hennef, Germany
- Average snowfall days in January:
6 days - Average snowfall days in February:
5.3 days - Average snowfall days in March:
2 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0 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 days - Average snowfall days in November:
0.8 days - Average snowfall days in December:
5.1 days
The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Hennef, Germany
- Average daylight in January:
8h and 30min - Average daylight in February:
10h and 6min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 48min - Average daylight in May:
15h and 30min - Average daylight in June:
16h and 24min
- Average daylight in July:
16h and 0min - 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:
9h and 0min - Average daylight in December:
8h and 0min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
4h and 12min - Average sunshine in March:
6h and 0min - Average sunshine in April:
9h and 0min - Average sunshine in May:
9h and 0min - Average sunshine in June:
9h and 24min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
9h and 48min - Average sunshine in September:
8h and 24min - Average sunshine in October:
5h and 30min - Average sunshine in November:
4h and 42min - Average sunshine in December:
3h and 48min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days
Hennef, Germany
- Average sunshine days in January:
12.8 days - Average sunshine days in February:
11.5 days - Average sunshine days in March:
14 days - Average sunshine days in April:
15.8 days - Average sunshine days in May:
13.1 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
13 days - Average sunshine days in August:
13.1 days - Average sunshine days in September:
16.4 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
14.1 days - Average sunshine days in December:
11.4 days
The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is December (11.4 days).
Average UV index
Hennef, 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
Hennef, Germany
The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility
Hennef, Germany
The months with the highest visibility are March, April, May, June, July and August (9km).
The months with the lowest visibility are January, February, September, October, November and December (8km).
