Heidelberg
4 to 25°C
temperature
2747 hours
sunshine per day
359 mm
rain
189 days
dry
159 days
rain
17 days
snow

Climate of Heidelberg

Heidelberg has a oceanic climate. There is rainfall during all months of the year. The average annual temperature for Heidelberg is 15° degrees and there is about 360 mm of rain in a year. It is dry for 169 days a year with an average humidity of 77% and an UV-index of 3.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between 4°C and 25°C
  • Night:the average nighttime temperature is between -1°C and 14°C
  • Rain: it rains 159 days and there is a total of approximately 359 mm rainfall
  • Snow: it snows an average of 17 days per year
  • Sun hours: throughout the year there are 2747 sun hours
Maximum temperature: between 4°C and 25°C
Warmest month: 25°C in July
Coldest month: 4°C in January
Night temperature: between -1°C and 14°C
Dry days: 189 days
Days with rain: 159 days
Days with snow: 17 days
Total rain sum: 359 mm
Hours of sunshine: 2747 hours

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Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Heidelberg.

Precipitation graph

This graph shows the average amount of rainfall per month for Heidelberg.

Climate table of Heidelberg

In this climate table you can see at a glance what the average weather per month is for Heidelberg. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Heidelberg might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°C) 4 5 11 16 19 23 25 25 21 15 9 5
Night temp. (°C) -1 0 3 6 9 12 14 14 11 7 4 1
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (mm) 32 21 27 15 42 34 40 32 23 22 26 45
Days with rain 13 10 13 11 16 15 16 14 11 12 13 15
Days with snow 6 4 1 - - - - - - - 1 5
Dry days 12 14 17 19 15 15 15 17 19 19 16 11
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 4 5 7 10 10 10 11 11 9 6 5 4
Wind force (Bft) 3 3 3 2 2 2 2 2 2 2 2 3
UV-index 2 2 3 4 5 5 5 4 4 3 2 2

Best time to visit Heidelberg

The best time to visit Heidelberg in Germany is from May through September. In this period you have a pleasant temperature and almost no precipitation. The highest average temperature in Heidelberg is 25°C in July and the lowest is 4°C in January.

Climate of Heidelberg by month

What is the average climate in a given month for Heidelberg? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

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