Temperatures in May
It's pleasantly warm in May in Heidelberg with an average temperature of 19°C. Temperatures this month range from a low of 14°C to a high of 23°C. At night, you can expect temperatures between 4°C and 10°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Heidelberg in May. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of May
The month of May starts in Heidelberg with cool temperatures, averaging around 17°C during the day and nights close to 7°C. There’s little chance of precipitation. The weather is mostly sunny and dry.
Mid-May
By mid-May, the average daytime temperature rises to around 19°C, with nights close to 9°C. Not much precipitation expected during this period. It’s mostly dry with sunshine.
End of May
By the end of May, the average daytime temperature in Heidelberg will be around 21°C, with nights close to 10°C. A shower might show up, but overall the weather will be dry and sunny.
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Precipitation in May
In May, there is an average of 43 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
The average precipitation chance is 28% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in May for Heidelberg. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Heidelberg in May |
London | ||
|---|---|---|---|
 Average Temperature |
19°C | 18°C | |
 High Temp |
23°C | 21°C | |
| Low Temp |
14°C | 15°C | |
 Total Precipitation |
43 mm | 46 mm | |
| Rainy Days |
9 days | 8 days | |
April
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is May a good time to visit Heidelberg?
Want nice weather? Then May is a great time to be in Heidelberg. You’ll have pleasant temperatures and not too much rain this month.
Temperature records for Heidelberg in May
With 31°C, Heidelberg hit the highest temperature in the last 10 years in May 2018. The lowest daytime temperature in this month was 8°C in 2017. The extreme night temperatures ranged from a low of -3°C to a high of 18°C.
Check out the climate of Heidelberg for all months and discover the best travel time
Curious about the climate in other parts of Germany? Check out the weather and climate in places like Sauerland, Bavaria, or have a look at other destinations in Germany.
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Daily Temperature in May in Heidelberg
This chart shows the average daily temperatures, both day and night, for each day in May in Heidelberg, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in May in Heidelberg
The chart below shows the average daily precipitation in May for Heidelberg, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for May, you can expect around 9 days of rain in Heidelberg.
Daily UV Index in May in Heidelberg
This chart shows the average daily UV index in May in Heidelberg, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in May in Heidelberg Over the Years
This chart shows the average temperature in May in Heidelberg, measured in degrees Celsius, over the past years.
Total Precipitation in May in Heidelberg Over the Years
This chart shows the average precipitation in May in Heidelberg, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in May for Heidelberg
Click on a specific day in May for detailed info on the typical weather on that day in Heidelberg. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in Heidelberg
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Average Weather in Heidelberg by Month
Click on a month below to see detailed weather info for Heidelberg. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Heidelberg for all months at once
