Best year time to visit Heidelberg

General weather information about Heidelberg

Average annual temperature is 24.8 °C

Absolute maximum temperature: 40.8 °C

Absolute minimum temperature: 3.4 °C

Number of sunny days: 196 days

Number of rainy days: 169 days

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* Weather data for Heidelberg United States is based on climate observations for 2026 year

Heidelberg air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)30.434.436.632.634.540.839.440.439.736.832.429.0
Average daytime temperature (°C)25.725.229.328.231.137.137.337.636.930.524.223.2
Average temperature (°C)19.918.823.023.126.230.531.331.430.725.119.518.2
Average night temperature (°C)16.214.618.919.222.325.826.926.926.221.316.014.1
Absolute minimum temperature (°C)7.73.47.913.119.121.424.524.423.39.59.05.8

Heidelberg monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.013.013.013.013.012.011.011.010.0
Daylight mean duration (h)10.711.312.012.813.413.713.613.012.311.510.910.5
Daylight minimum duration (h)10.010.011.012.013.013.013.012.011.011.010.010.0
Sunshine mean duration (h)7.48.77.98.510.112.412.311.811.08.15.86.7
Precipitation (mm)7103516166444853215810421
Sunny days20161411923181818111820
Rainy days11121719227131312201211
Snow days000000000000

Heidelberg - weather forecast by months

Heidelberg weather in januaryHeidelberg weather in februaryHeidelberg weather in marchHeidelberg weather in aprilHeidelberg weather in mayHeidelberg weather in juneHeidelberg weather in julyHeidelberg weather in augustHeidelberg weather in septemberHeidelberg weather in octoberHeidelberg weather in novemberHeidelberg weather in december

Best time to visit Heidelberg:

The best time to visit Heidelberg during the most sunny months:

  • June — 12.4(h)
  • July — 12.3(h)
  • August — 11.8(h)

The largest precipitation sum in Heidelberg is at

  • April — 161(mm)
  • November — 104(mm)

    • Weather forecast in the closest to Heidelberg admin centers

    Weather forecast in the closest towns to Heidelberg

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    Frequently asked questions

    When is the best time to visit Heidelberg?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Heidelberg.
    What is the weather like in Heidelberg?
    See average temperature, rainfall and daylight hours for Heidelberg by month in the table above.
    How many sunny days does Heidelberg have?
    The monthly weather statistics above show sunshine and rainfall patterns for Heidelberg throughout the year.