Monthly weather forecast and climate
Heidelberg, Germany

Weather in January

January, like December, in Heidelberg, Germany, is a wintry winter month, with average temperature fluctuating between -0.3°C (31.5°F) and 4°C (39.2°F). With an average high-temperature of 4°C (39.2°F) and an average low-temperature of -0.3°C (31.5°F), January is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Heidelberg, Germany, with average temperature ranging between max 5.6°C (42.1°F) and min 0.2°C (32.4°F). In February, the average high-temperature is relatively the same as in January - a still cold 5.6°C (42.1°F). Weather in February »

Weather in March

The first month of the spring, March, is a cool month in Heidelberg, Germany, with average temperature ranging between max 10.8°C (51.4°F) and min 2.8°C (37°F). In March, the average high-temperature rises, from a wintry 5.6°C (42.1°F) in February, to a fresh 10.8°C (51.4°F). Weather in March »

Weather in April

April in Heidelberg, Germany, is a comfortable spring month, with average temperature varying between 6.5°C (43.7°F) and 16.3°C (61.3°F). In April, the average high-temperature rises, from a cool 10.8°C (51.4°F) in March, to an enjoyable 16.3°C (61.3°F). Weather in April »

Weather in May

The last month of the spring, May, is another comfortable month in Heidelberg, Germany, with average temperature varying between 8.8°C (47.8°F) and 19.3°C (66.7°F). In May, the average high-temperature slightly increases, from a comfortable 16.3°C (61.3°F) in April, to a still enjoyable 19.3°C (66.7°F). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Heidelberg, Germany, with average temperature varying between 23.2°C (73.8°F) and 12.7°C (54.9°F). In Heidelberg, Germany, the average high-temperature slightly increases, from a comfortable 19.3°C (66.7°F) in May, to a moderately hot 23.2°C (73.8°F). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Heidelberg, Germany, with temperature in the range of an average low of 15.1°C (59.2°F) and an average high of 25.7°C (78.3°F). In July, the average high-temperature is essentially the same as in June - a still warm 25.7°C (78.3°F). Weather in July »

Weather in August

August, the last month of the summer, in Heidelberg, is also a moderately hot month, with average temperature ranging between max 25.8°C (78.4°F) and min 15.3°C (59.5°F). The warmest month is August, with an average high-temperature of 25.8°C (78.4°F) and an average low-temperature of 15.3°C (59.5°F). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Heidelberg, Germany, with average temperature varying between 11.4°C (52.5°F) and 20.6°C (69.1°F). In September, the average high-temperature decreases, from a warm 25.8°C (78.4°F) in August, to a pleasant 20.6°C (69.1°F). Weather in September »

Weather in October

October, the same as September, in Heidelberg, Germany, is a moderate autumn month, with temperature in the range of an average low of 7.4°C (45.3°F) and an average high of 15°C (59°F). In October, the average high-temperature drops, from an agreeable 20.6°C (69.1°F) in September, to a moderate 15°C (59°F). Weather in October »

Weather in November

November, the last month of the autumn, in Heidelberg, is also a frosty month, with average temperature ranging between min 4.1°C (39.4°F) and max 9.1°C (48.4°F). In Heidelberg, the average high-temperature in November drops, from a mild 15°C (59°F) in October, to a chilly 9.1°C (48.4°F). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Heidelberg, Germany, with temperature in the range of an average low of 1.1°C (34°F) and an average high of 5.5°C (41.9°F). In Heidelberg, the average high-temperature in December slightly decreases, from a chilly 9.1°C (48.4°F) in November, to a wintry 5.5°C (41.9°F). Weather in December »
[Resources]

FAQ

What is the coldest month in Heidelberg?

January is the coldest month in Heidelberg, Germany, with an average high-temperature of 4°C (39.2°F) and an average low-temperature of -0.3°C (31.5°F).

What is the most humid month in Heidelberg?

The most humid month in Heidelberg is January, with an average relative humidity of 86%.

How many days does it rain in Heidelberg?

Throughout the year, there are 164.2 rainfall days, and 434mm (17.09") of precipitation is accumulated.

When does it snow in Heidelberg?

January through March, October through December are months with snowfall in Heidelberg.

How much does it snow in Heidelberg?

Throughout the year, in Heidelberg, there are 15.5 snowfall days, and 116mm (4.57") of snow is accumulated.

What are the months with the lowest UV index in Heidelberg?

Months with the lowest UV index in Heidelberg, Germany, are January, February, November and December, with an average maximum UV index of 2.

What is the driest month in Heidelberg?

April is the month with the least rainfall in Heidelberg, Germany. Rain falls for 11.4 days and accumulates 19mm (0.75") of precipitation.

When it does not snow in Heidelberg?

April through September are months without snowfall in Heidelberg, Germany.

What is the wettest month in Heidelberg?

May is the month with the most rainfall in Heidelberg, Germany. Rain falls for 15.8 days and accumulates 50mm (1.97") of precipitation.

When is the highest UV index in Heidelberg?

May through August, with an average maximum UV index of 5, are months with the highest UV index in Heidelberg, Germany.

When are the longest days in Heidelberg?

With an average of 16.2h of daylight, June has the longest days of the year in Heidelberg, Germany.

What is the least humid month in Heidelberg?

Months with the lowest humidity in Heidelberg are July and August, with an average relative humidity of 67%.

What are the months with the most sunshine in Heidelberg?

Months with the most sunshine in Heidelberg, Germany, are July and August, with an average of 10.5h of sunshine.

What is the warmest month in Heidelberg?

The warmest month is August, with an average high-temperature of 25.8°C (78.4°F) and an average low-temperature of 15.3°C (59.5°F).

What is the snowiest month in Heidelberg?

The month with the most snowfall in Heidelberg is December when snow falls for 4.2 days and typically aggregates up to 44mm (1.73") of snow.

What is the month with the shortest days in Heidelberg?

The month with the shortest days in Heidelberg, Germany, is December, with an average of 8.3h of daylight.

What is the month with the least sunshine in Heidelberg?

The month with the least sunshine is December, with an average of 4.1h of sunshine.

Average temperature
Heidelberg, Germany

Average temperature - Heidelberg, Germany

The warmest month (with the highest average high temperature) is August (25.8°C).
The month with the lowest average high temperature is January (4°C).

The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is January (-0.3°C).

[Resources]

Average pressure
Heidelberg, Germany

Average pressure - Heidelberg, Germany

The month with the highest atmospheric pressure is December (1019.1mbar).
The month with the lowest atmospheric pressure is November (1015mbar).

[Resources]

Average wind speed
Heidelberg, Germany

Average wind speed - Heidelberg, Germany

The windiest month (with the highest average wind speed) is February (12.3km/h).
The calmest month (with the lowest average wind speed) is August (8.7km/h).

[Resources]

Average humidity
Heidelberg, Germany

Average humidity - Heidelberg, Germany

The month with the highest relative humidity is January (86%).
Months with the lowest relative humidity are July and August (67%).

[Resources]

Average rainfall
Heidelberg, Germany

Average rainfall - Heidelberg, Germany

The wettest month (with the highest rainfall) is May (50mm).
The driest month (with the least rainfall) is April (19mm).

[Resources]

Average rainfall days
Heidelberg, Germany

Average rainfall days - Heidelberg, Germany

The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is September (10.8 days).

[Resources]

Average snowfall
Heidelberg, Germany

Average snowfall - Heidelberg, Germany

The month with the highest snowfall is December (44mm).
Months with the least snowfall are April, May, June, July, August and September (0mm).

[Resources]

Average snowfall days
Heidelberg, Germany

Average snowfall days - Heidelberg, Germany

The month with the highest number of snowfall days is January (5.4 days).
Months with the least snowfall days are April, May, June, July, August and September (0 days).

[Resources]

Average daylight / Average sunshine
Heidelberg, Germany

Average daylight / Average sunshine - Heidelberg, Germany

The month with the longest days is June (Average daylight: 16.2h).
The month with the shortest days is December (Average daylight: 8.3h).

Months with the most sunshine are July and August (Average sunshine: 10.5h).
The month with the least sunshine is December (Average sunshine: 4.1h).

[Resources]

Average sunshine days
Heidelberg, Germany

Average sunshine days - Heidelberg, Germany

The month with the most sunshine days is September (17.3 days).
The month with the least sunshine days is December (11.5 days).

[Resources]

Average UV index
Heidelberg, Germany

Average UV index - Heidelberg, Germany

Months with the highest UV index are May, June, July and August (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 2).

[Resources]

Average visibility
Heidelberg, Germany

Average visibility - Heidelberg, Germany

Months with the highest visibility are February, March, April, May, June, July, August, September, October and November (9km).
Months with the lowest visibility are January and December (8km).

[Resources]