Climate and monthly weather forecastGrethem, Germany
Climate and monthly weather forecast
Weather in January
January, like December, in Grethem, Germany, is an icy winter month, with temperature in the range of an average high of 3.1°C (37.6°F) and an average low of -0.7°C (30.7°F). The coldest month is January, with an average high-temperature of 3.1°C (37.6°F) and an average low-temperature of -0.7°C (30.7°F). Weather in January »Weather in February
The last month of the winter, February, is another cold month in Grethem, Germany, with an average temperature varying between -0.1°C (31.8°F) and 4.5°C (40.1°F). Grethem notes an average high-temperature of a still wintry 4.5°C (40.1°F) in February, displaying minor variation from January. Weather in February »Weather in March
March, the first month of the spring in Grethem, is a frosty month, with temperature in the range of an average low of 1.9°C (35.4°F) and an average high of 9.2°C (48.6°F). Grethem in March observes a minor temperature shift, with average high-temperatures adjusting from a wintry 4.5°C (40.1°F) in February to a chilly 9.2°C (48.6°F). Weather in March »Weather in April
April in Grethem, Germany, is a mild spring month, with temperature in the range of an average low of 5.1°C (41.2°F) and an average high of 15.1°C (59.2°F). The arrival of April brings an increase in high-temperatures, moving from a frosty 9.2°C (48.6°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 refreshing month in Grethem, Germany, with an average temperature ranging between min 7.6°C (45.7°F) and max 18.2°C (64.8°F). With the onset of May, Grethem observes a minor temperature ascent, with the average high-temperature adjusting from April's 15.1°C (59.2°F) to a still refreshing 18.2°C (64.8°F). Weather in May »Weather in June
June, the first month of the summer in Grethem, is a pleasant month, with an average temperature fluctuating between 21.4°C (70.5°F) and 11.1°C (52°F). The shift into June brings a slight increase in the average high-temperature, moving from a refreshing 18.2°C (64.8°F) in May to an agreeable 21.4°C (70.5°F). Weather in June »Weather in July
July in Grethem, Germany, is a moderately hot summer month, with an average temperature fluctuating between 13.7°C (56.7°F) and 23.8°C (74.8°F). With the onset of July, the average high-temperature registers at a warm 23.8°C (74.8°F), subtly different from June's 21.4°C (70.5°F). Weather in July »Weather in August
August, the last month of the summer in Grethem, is also a moderately hot month, with an average temperature varying between 23.9°C (75°F) and 14.2°C (57.6°F). August, with an average high of 23.9°C (75°F) and a low of 14.2°C (57.6°F), signifies the warmest month of the year. Weather in August »Weather in September
September, the first month of the autumn in Grethem, is still a refreshing month, with an average temperature ranging between min 11.1°C (52°F) and max 19.4°C (66.9°F). With the beginning of September, the average high-temperature shows a small decrease, transitioning from a warm 23.9°C (75°F) in August to a refreshing 19.4°C (66.9°F). Weather in September »Weather in October
October, like September, is a moderate autumn month in Grethem, Germany, with an average temperature varying between 14.1°C (57.4°F) and 7.4°C (45.3°F). The move into October indicates a reduction in the average high-temperature, down from September's enjoyable 19.4°C (66.9°F) to a still refreshing 14.1°C (57.4°F). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Grethem, Germany, with temperature in the range of an average low of 4°C (39.2°F) and an average high of 8.5°C (47.3°F). Grethem in November demonstrates a small temperature transition, adjusting from an average high of a mild 14.1°C (57.4°F) in October to a chilly 8.5°C (47.3°F). Weather in November »Weather in December
December, the first month of the winter in Grethem, is also an icy month, with an average temperature varying between 1.2°C (34.2°F) and 5.1°C (41.2°F). The onset of December results in a small decrease in the average high-temperature, moderately receding from a chilly 8.5°C (47.3°F) in November to an icy 5.1°C (41.2°F). Weather in December »Updated: Feb 12, 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 is the month when Grethem experiences its coldest temperatures, averaging a high of 3.1°C (37.6°F) and a low of -0.7°C (30.7°F).
The months with the highest humidity are January and December, with an average relative humidity of 88%.
In Grethem, during the entire year, the rain falls for 149.4 days and collects up to 335mm (13.19") of precipitation.
January through April, November and December are months with snowfall.
Throughout the year, in Grethem, Germany, there are 20.7 snowfall days, and 143mm (5.63") of snow is accumulated.
The months with the lowest UV index in Grethem are January, February, November and December, with an average maximum UV index of 2.
The month with the least rainfall is April, when the rain falls for 11.6 days and typically collects 16mm (0.63") of precipitation.
May through October are months without snowfall.
With an average of 16h and 48min of daylight, June has the longest days of the year in Grethem, Germany.
June through August, with an average maximum UV index of 5, are months with the highest UV index in Grethem, Germany.
July is the month with the most rainfall. Rain falls for 15.7 days and accumulates 39mm (1.54") of precipitation.
The average temperatures in Grethem reach their apex in August, averaging 23.9°C (75°F) at the high end and 14.2°C (57.6°F) at the low end.
The least humid month in Grethem, Germany, is August, with an average relative humidity of 70%.
With an average of 9.5h of sunshine, August has the most sunshine of the year.
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends, 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 snowfall. Snow falls for 5.2 days and accumulates 43mm (1.69") of snow.
December has the shortest days of the year in Grethem, with an average of 7h and 42min of daylight.
With an average of 3.2h of sunshine, December has the least sunshine of the year.
Average temperature
Grethem, Germany
The warmest month (with the highest average high temperature) is August (23.9°C).
The month with the lowest average high temperature is January (3.1°C).
The month with the highest average low temperature is August (14.2°C).
The coldest month (with the lowest average low temperature) is January (-0.7°C).
Average pressure
Grethem, Germany
- Average pressure in January:
1015.1mbar - Average pressure in February:
1014.8mbar - Average pressure in March:
1015.7mbar - Average pressure in April:
1016mbar - Average pressure in May:
1016.2mbar - Average pressure in June:
1015.7mbar
- Average pressure in July:
1015mbar - Average pressure in August:
1015.4mbar - Average pressure in September:
1017.1mbar - Average pressure in October:
1016.4mbar - Average pressure in November:
1012.7mbar - Average pressure in December:
1014.8mbar
The month with the highest atmospheric pressure is September (1017.1mbar).
The month with the lowest atmospheric pressure is November (1012.7mbar).
Average wind speed
Grethem, Germany
- Average wind speed in January:
16.7km/h - Average wind speed in February:
16.5km/h - Average wind speed in March:
15.5km/h - Average wind speed in April:
13.7km/h - Average wind speed in May:
13.6km/h - Average wind speed in June:
13km/h
- Average wind speed in July:
12.9km/h - Average wind speed in August:
12.5km/h - Average wind speed in September:
12.8km/h - Average wind speed in October:
14.3km/h - Average wind speed in November:
14.7km/h - Average wind speed in December:
17.2km/h
The windiest month (with the highest average wind speed) is December (17.2km/h).
The calmest month (with the lowest average wind speed) is August (12.5km/h).
Average humidity
Grethem, Germany
The months with the highest relative humidity are January and December (88%).
The month with the lowest relative humidity is August (70%).
Average rainfall
Grethem, Germany
The wettest month (with the highest rainfall) is July (39mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days
Grethem, Germany
- Average rainfall days in January:
11.4 days - Average rainfall days in February:
10 days - Average rainfall days in March:
13 days - Average rainfall days in April:
11.6 days - Average rainfall days in May:
14.7 days - Average rainfall days in June:
14.3 days
- Average rainfall days in July:
15.7 days - Average rainfall days in August:
11.9 days - Average rainfall days in September:
10.7 days - Average rainfall days in October:
12.1 days - Average rainfall days in November:
11.4 days - Average rainfall days in December:
12.6 days
The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is February (10 days).
Average snowfall
Grethem, Germany
The month with the highest snowfall is December (43mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days
Grethem, Germany
- Average snowfall days in January:
5.8 days - Average snowfall days in February:
5.7 days - Average snowfall days in March:
2.1 days - Average snowfall days in April:
0.8 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:
1.1 days - Average snowfall days in December:
5.2 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Grethem, Germany
- Average daylight in January:
8h and 18min - Average daylight in February:
9h and 54min - Average daylight in March:
11h and 54min - Average daylight in April:
14h and 0min - Average daylight in May:
15h and 48min - Average daylight in June:
16h and 48min
- Average daylight in July:
16h and 18min - Average daylight in August:
14h and 42min - Average daylight in September:
12h and 42min - Average daylight in October:
10h and 36min - Average daylight in November:
8h and 42min - Average daylight in December:
7h and 42min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in January:
3h and 30min - Average sunshine in February:
3h and 24min - Average sunshine in March:
5h and 24min - Average sunshine in April:
8h and 30min - Average sunshine in May:
8h and 12min - Average sunshine in June:
8h and 36min
- Average sunshine in July:
9h and 0min - Average sunshine in August:
9h and 30min - Average sunshine in September:
8h and 0min - Average sunshine in October:
4h and 42min - Average sunshine in November:
4h and 12min - Average sunshine in December:
3h and 12min
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
Grethem, Germany
- Average sunshine days in January:
14.1 days - Average sunshine days in February:
13.3 days - Average sunshine days in March:
13.7 days - Average sunshine days in April:
15.6 days - Average sunshine days in May:
13.8 days - Average sunshine days in June:
12.7 days
- Average sunshine days in July:
12.5 days - Average sunshine days in August:
16.8 days - Average sunshine days in September:
16.8 days - Average sunshine days in October:
16.6 days - Average sunshine days in November:
15.5 days - Average sunshine days in December:
13.5 days
The months with the most sunshine days are August and September (16.8 days).
The month with the least sunshine days is July (12.5 days).
Average UV index
Grethem, Germany
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Grethem, Germany
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility
Grethem, Germany
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).
