May weather forecastHeilbronn, Germany
May
Weather in May
May, the last month of the spring in Heilbronn, is an enjoyable month, with an average temperature ranging between max 18.1°C (64.6°F) and min 7.8°C (46°F).Temperature
Heilbronn records an average high-temperature of an enjoyable 18.1°C (64.6°F) in May, closely mirroring the climate of the previous month. Throughout the May nights, Heilbronn encounters a low-temperature of 7.8°C (46°F).Humidity
The average relative humidity in May is 78%.Rainfall
May is the month with the most rainfall. Rain falls for 17.7 days and accumulates 72mm (2.83") of precipitation.Snowfall
In Heilbronn, snow does not fall in May through September.Daylight
The average length of the day in May in Heilbronn is 15h and 20min.On the first day of the month, sunrise is at 06:00 and sunset at 20:39. On the last day of May, sunrise is at 05:23 and sunset at 21:18 CEST.
Sunshine
The average sunshine in May is 9h.UV index
In Heilbronn, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: During May, 4 as the daily maximum UV index converts into the following advice:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Heilbronn, Germany
- Average high temperature in May: 18.1°C
The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (3.1°C).
- Average low temperature in May: 7.8°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (-1.3°C).
Average pressure in May
Heilbronn, Germany
- Average pressure in May: 1016.1mbar
The month with the highest atmospheric pressure is December (1019.5mbar).
The month with the lowest atmospheric pressure is November (1015.2mbar).
Average wind speed in May
Heilbronn, Germany
- Average wind speed in May: 9.8km/h
The windiest month (with the highest average wind speed) is February (12.7km/h).
The calmest month (with the lowest average wind speed) is August (8.4km/h).
Average humidity in May
Heilbronn, Germany
- Average humidity in May: 78%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (72%).
Average rainfall in May
Heilbronn, Germany
- Average rainfall in May: 72mm
The wettest month (with the highest rainfall) is May (72mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in May
Heilbronn, Germany
- Average rainfall days in May: 17.7 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (11.6 days).
Average snowfall in May
Heilbronn, Germany
- Average snowfall in May: 0mm
The month with the highest snowfall is January (72mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in May
Heilbronn, Germany
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Heilbronn, Germany
- Average daylight in May: 15h and 18min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in May: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in May
Heilbronn, Germany
- Average sunshine days in May: 11.6 days
The month with the most sunshine days is October (15.2 days).
The month with the least sunshine days is June (9.9 days).
Average UV index in May
Heilbronn, Germany
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Heilbronn, Germany
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in May
Heilbronn, Germany
- Average visibility in May: 9km
The months with the highest visibility are March, April, May, June, July, August and September (9km).
The months with the lowest visibility are January, February, October, November and December (8km).
