Climate and monthly weather forecastHeilbronn, Germany
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Heilbronn, Germany, with an average temperature fluctuating between 3.1°C (37.6°F) and -1.3°C (29.7°F). The coldest temperatures occur during January, when averages reach a peak of 3.1°C (37.6°F) and a low of -1.3°C (29.7°F). Weather in January »Weather in February
February, the last month of the winter in Heilbronn, is also a wintry month, with an average temperature fluctuating between -1°C (30.2°F) and 4.5°C (40.1°F). Heilbronn's average high-temperature in February is a still cold 4.5°C (40.1°F), marking an insignificant difference from the 3.1°C (37.6°F) of January. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Heilbronn, Germany, with an average temperature ranging between max 9.7°C (49.5°F) and min 2°C (35.6°F). An increase in the average high-temperature marks March, moving from February's icy 4.5°C (40.1°F) to a frosty 9.7°C (49.5°F). Weather in March »Weather in April
April in Heilbronn, Germany, is a refreshing spring month, with an average temperature varying between 5.2°C (41.4°F) and 15.3°C (59.5°F). April's arrival coincides with a rise in the average high-temperature, moving from March's frosty 9.7°C (49.5°F) to a moderate 15.3°C (59.5°F). Weather in April »Weather in May
May, the last month of the spring in Heilbronn, is an enjoyable month, with an average temperature ranging between max 18.1°C (64.6°F) and min 7.8°C (46°F). Heilbronn records an average high-temperature of an enjoyable 18.1°C (64.6°F) in May, closely mirroring the climate of the previous month. Weather in May »Weather in June
The first month of the summer, June, is a pleasant month in Heilbronn, Germany, with temperature in the range of an average low of 11.4°C (52.5°F) and an average high of 21.9°C (71.4°F). In Heilbronn, the onset of June comes with a modest high-temperature shift, transitioning from May's refreshing 18.1°C (64.6°F) to an agreeable 21.9°C (71.4°F). Weather in June »Weather in July
July in Heilbronn, Germany, is a moderately hot summer month, with an average temperature ranging between min 13.4°C (56.1°F) and max 24.3°C (75.7°F). The initiation of July records an average high-temperature of a moderately hot 24.3°C (75.7°F), displaying a near consistency with the previous month. Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Heilbronn, Germany, with an average temperature fluctuating between 14°C (57.2°F) and 24.5°C (76.1°F). Heilbronn's temperatures peak on average in August, reaching 24.5°C (76.1°F) at their highest and 14°C (57.2°F) at their lowest. Weather in August »Weather in September
September, the first month of the autumn in Heilbronn, is also an enjoyable month, with an average temperature ranging between max 19.7°C (67.5°F) and min 10°C (50°F). The shift from August to September includes a small decrease in the average high-temperature, from a moderately hot 24.5°C (76.1°F) to an enjoyable 19.7°C (67.5°F). Weather in September »Weather in October
October, like September, is another mild autumn month in Heilbronn, Germany, with temperature in the range of an average high of 14.3°C (57.7°F) and an average low of 6.2°C (43.2°F). Heilbronn's average high-temperature decreases in October, falling from 19.7°C (67.5°F) in September to a still refreshing 14.3°C (57.7°F). Weather in October »Weather in November
November, the last month of the autumn in Heilbronn, is also a frosty month, with an average temperature varying between 2.9°C (37.2°F) and 8.5°C (47.3°F). During the transition into November, Heilbronn observes a decrease in the average high-temperature, falling from a refreshing 14.3°C (57.7°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 Heilbronn, is also an icy month, with temperature in the range of an average low of 0.2°C (32.4°F) and an average high of 4.6°C (40.3°F). December signifies a minor drop in average high-temperature, transitioning from a chilly 8.5°C (47.3°F) in November to an icy 4.6°C (40.3°F). Weather in December »Updated: Jul 6, 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 lowest temperatures are recorded in January, with averages reaching a high of 3.1°C (37.6°F) and a low of -1.3°C (29.7°F).
January is the most humid month in Heilbronn, with an average relative humidity of 88%.
In Heilbronn, during the entire year, the rain falls for 175.1 days and collects up to 581mm (22.87") of precipitation.
Months with snowfall are January through April, October through December.
The month with the most snowfall is January, when snow falls for 8.5 days and typically aggregates up to 72mm (2.83") of snow.
In Heilbronn, during the entire year, snow falls for 26.9 days and aggregates up to 231mm (9.09") of snow.
With an average of 3.8h of sunshine, January has the least sunshine of the year.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
April is the month with the least rainfall in Heilbronn. Rain falls for 13.1 days and accumulates 27mm (1.06") of precipitation.
The month with the most rainfall in Heilbronn is May, when the rain falls for 17.7 days and typically aggregates up to 72mm (2.83") of precipitation.
May through September are months without snowfall.
With an average of 16h and 12min of daylight, June has the longest days of the year.
June through August, with an average maximum UV index of 5, are months with the highest UV index.
With an average of 10.3h of sunshine, July has the most sunshine of the year.
In Heilbronn, the peak average temperatures are observed in August, with a high of 24.5°C (76.1°F) and a low of 14°C (57.2°F).
August is the least humid month, with an average relative humidity of 72%.
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends in Heilbronn, 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 of 8h and 18min of daylight, December has the shortest days of the year.
Average temperature
Heilbronn, Germany
The warmest month (with the highest average high temperature) is August (24.5°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°C).
The coldest month (with the lowest average low temperature) is January (-1.3°C).
Average pressure
Heilbronn, Germany
- Average pressure in January:
1018.5mbar - Average pressure in February:
1017.3mbar - Average pressure in March:
1017mbar - Average pressure in April:
1015.7mbar - Average pressure in May:
1016.1mbar - Average pressure in June:
1016.2mbar
- Average pressure in July:
1016.2mbar - Average pressure in August:
1016.8mbar - Average pressure in September:
1018.5mbar - Average pressure in October:
1018.4mbar - Average pressure in November:
1015.2mbar - Average pressure in December:
1019.5mbar
The month with the highest atmospheric pressure is December (1019.5mbar).
The month with the lowest atmospheric pressure is November (1015.2mbar).
Average wind speed
Heilbronn, Germany
- Average wind speed in January:
12km/h - Average wind speed in February:
12.7km/h - Average wind speed in March:
12.6km/h - Average wind speed in April:
10.2km/h - Average wind speed in May:
9.8km/h - Average wind speed in June:
9.1km/h
- Average wind speed in July:
9.1km/h - Average wind speed in August:
8.4km/h - Average wind speed in September:
8.5km/h - Average wind speed in October:
9.5km/h - Average wind speed in November:
10.4km/h - Average wind speed in December:
12.3km/h
The windiest month (with the highest average wind speed) is February (12.7km/h).
The calmest month (with the lowest average wind speed) is August (8.4km/h).
Average humidity
Heilbronn, Germany
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (72%).
Average rainfall
Heilbronn, Germany
The wettest month (with the highest rainfall) is May (72mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days
Heilbronn, Germany
- Average rainfall days in January:
12.1 days - Average rainfall days in February:
11.6 days - Average rainfall days in March:
14.7 days - Average rainfall days in April:
13.1 days - Average rainfall days in May:
17.7 days - Average rainfall days in June:
17.3 days
- Average rainfall days in July:
17.8 days - Average rainfall days in August:
17 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
13.7 days - Average rainfall days in November:
12.4 days - Average rainfall days in December:
15.2 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (11.6 days).
Average snowfall
Heilbronn, Germany
The month with the highest snowfall is January (72mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days
Heilbronn, Germany
- Average snowfall days in January:
8.5 days - Average snowfall days in February:
6.9 days - Average snowfall days in March:
2.7 days - Average snowfall days in April:
0.5 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:
0.1 days - Average snowfall days in November:
2 days - Average snowfall days in December:
6.2 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Heilbronn, Germany
- Average daylight in January:
8h and 48min - Average daylight in February:
10h and 12min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 42min - Average daylight in May:
15h and 18min - Average daylight in June:
16h and 12min
- Average daylight in July:
15h and 42min - Average daylight in August:
14h and 18min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 12min - Average daylight in December:
8h and 18min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in January:
3h and 48min - Average sunshine in February:
4h and 12min - Average sunshine in March:
6h and 18min - Average sunshine in April:
9h and 0min - Average sunshine in May:
9h and 0min - Average sunshine in June:
9h and 48min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 12min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 36min - Average sunshine in November:
4h and 36min - Average sunshine in December:
4h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Heilbronn, Germany
- Average sunshine days in January:
12.1 days - Average sunshine days in February:
11.3 days - Average sunshine days in March:
13.3 days - Average sunshine days in April:
14.5 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
9.9 days
- Average sunshine days in July:
10.6 days - Average sunshine days in August:
11.3 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
15.2 days - Average sunshine days in November:
13.4 days - Average sunshine days in December:
11 days
The month with the most sunshine days is October (15.2 days).
The month with the least sunshine days is June (9.9 days).
Average UV index
Heilbronn, 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
Heilbronn, Germany
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Heilbronn, Germany
The months with the highest visibility are March, April, May, June, July, August and September (9km).
The months with the lowest visibility are January, February, October, November and December (8km).
