Mannheim weather and climate in 2025
Day
26 °C
Night
15 °C
Sea
0 °C
Precipitation
81 mm
in month
Rainy days
12 days
in month
Daylight
16 hours
average
Sunshine
7 hours
average
Humidity
67 %
Day
26 °C
Night
15 °C
Sea
0 °C
Precipitation
81 mm
in month
Rainy days
12 days
in month
Daylight
16 hours
average
Sunshine
7 hours
average
Humidity
67 %
Overview: Mannheim
Weather charts for Mannheim
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Weather overview for Mannheim
Weather overview
Mannheim (Germany) in general has a mild climate. The day temperatures range from 5 °C (40 °F) in January to 26 °C (79 °F) in July. The driest month is September with just 10 days of rain, on the contrary, the month when it rains the most is December with 13 days of rain. Temperatures during the night go from -1 °C (31 °F) in January to 15 °C (59 °F) in July.
January weather
The number of rainy days descent's start could be observed in Mannheim, and the rainfall amount starts to descent too, the value of this measure is 43 mm (1.69 in). The day temperature is on its minimum, the value of this measure is 5 °C (40 °F), and the minimum of the night temperature is observable as well, the value of this measure is -1 °C (31 °F). The maximum of the humidity can be noticed, with its value being 90 %.
February weather
The number of rainy days continues to descent, its value is 10 days in Mannheim, while the rainfall amount is on its minimum, its value is 39 mm (1.54 in). The day temperature starts to rise, with its value being 6 °C (44 °F). The number of sun hours (without clouds) starts to rise, its value is 3 hours.
March weather
The day temperature continues to rise, its value is 12 °C (53 °F) in Mannheim, while the night temperature rise's start could be observed, the value of this measure is 2 °C (36 °F). The rainfall amount rise's start could be observed, with its value of 50 mm (1.96 in), and the number of rainy days starts to rise too, its value is 11 days. The rise of the number of sun hours (without clouds) can be observed, the value of this measure is 4 hours. The wind speed is on its maximum, with its value of 3.
April weather
The day temperature continues to rise, the value of this measure is 16 °C (61 °F) in Mannheim, and the night temperature rises similarly to the previous month too, the value of this measure is 5 °C (42 °F). The number of sun hours (without clouds) continues to rise, its value is 5 hours. The number of rainy days descent's start could be observed, with its value being 10 days.
May weather
The day temperature rises similarly to the previous month, its value is 21 °C (70 °F) in Mannheim, and the rise of the night temperature can be observed too, its value is 10 °C (49 °F). The number of rainy days rise's start could be observed, and the beginning of the rise of the rainfall amount could be noticed as well in May. The tourist season is about to start. The rise of the number of sun hours (without clouds) can be observed, its value is 7 hours.
June weather
The rise of the day temperature can be observed, with its value being 24 °C (75 °F) in Mannheim, and the night temperature continues to rise as well, with its value being 13 °C (55 °F). The tourist season is close to its peak. The rise of the number of sun hours (without clouds) can be observed, with its value being 7 hours. The day length is on its maximum, with its value being 16 hours.
July weather
The maximum of the day temperature is observable, with its value being 26 °C (79 °F) in Mannheim, and the maximum of the night temperature can be noticed as well, its value is 15 °C (59 °F). There is pending tourist season. The maximum of the rainfall amount is observable, with its value of 81 mm (3.20 in). The maximum of the number of sun hours (without clouds) can be noticed, with its value being 7 hours. The humidity reaches its minimum, with its value of 67 %.
August weather
The tourist season continues in Mannheim. The beginning of the descent of the number of rainy days could be noticed, with its value of 11 days, and the beginning of the descent of the rainfall amount could be noticed as well, its value is 54 mm (2.14 in). The day temperature descent's start could be observed, its value is 26 °C (78 °F). The number of sun hours (without clouds) starts to descent, its value is 7 hours. The minimum of the wind speed is observable in August.
September weather
The descent of the day temperature can be observed, the value of this measure is 21 °C (70 °F) in Mannheim, while the night temperature starts to descent, with its value of 11 °C (51 °F). The number of rainy days is on its minimum in this month. The ongoing tourist season is noticeable. The descent of the number of sun hours (without clouds) can be observed, with its value being 5 hours.
October weather
The number of rainy days rise's start could be observed in Mannheim. The day temperature descents similarly to the previous month, its value is 15 °C (60 °F), and the night temperature continues to descent as well. The descent of the number of sun hours (without clouds) can be observed, with its value of 3 hours.
November weather
The night temperature descents similarly to the previous month, with its value of 3 °C (38 °F) in Mannheim, and the descent of the day temperature can be observed as well, its value is 9 °C (48 °F). The number of sun hours (without clouds) continues to descent, with its value being 2 hours.
December weather
The number of rainy days reaches its maximum in this month in Mannheim. The day temperature descents similarly to the previous month, with its value of 5 °C (42 °F), and the night temperature descents similarly to the previous month too, the value of this measure is 1 °C (33 °F). The minimum of the day length is observable in December. The number of sun hours (without clouds) reaches its minimum in December.
FAQs
Is there a dry season in April in Mannheim?
No, April is not a dry month in Mannheim, expect rain approximately 10 days in a month.
What is the average number of rainy days in May in Mannheim?
In May in Mannheim, we can expect 13 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 3.0 days of the week, or in general - 42 % days.
Is June a good month to visit Mannheim?
There are good conditions for visiting in Mannheim in June. There are some people, who may feel a slight chill at 24 °C (75 °F), but others will feel perfectly fine. The temperature of 13 °C (55 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.
Is there a wet season in Mannheim in July?
No, there is no wet season in Mannheim in July - you can expect 12 days of rain during the month.
Is it hot in Mannheim in August?
In August in Mannheim, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.
What temperature can I expect during the day in Mannheim in September?
The average daily temperature in Mannheim in September is 21 °C (70 °F). A comfortable temperature for most people, where it is neither too cold nor too hot, and a large number of activities can be carried out comfortably, including sunbathing by the water. Lighter clothing will be suitable - shorts, skirts, t-shirts, jackets; a light sweater and long trousers may also be useful.
What is the air temperature in Mannheim in October at night?
The average night temperature in October in Mannheim is 7 °C (44 °F). The nights will be cool, layers of clothes will be needed for evening and morning walks, the hotel should be equipped with heating.
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