April weather forecastHeilbronn, Germany
April
Weather in April
April in Heilbronn, Germany, is a refreshing spring month, with an average temperature varying between 5.2°C (41.4°F) and 15.3°C (59.5°F).Temperature
April's arrival coincides with a rise in the average high-temperature, moving from March's frosty 9.7°C (49.5°F) to a moderate 15.3°C (59.5°F). Heilbronn, during the month of April, experiences an average low-temperature of 5.2°C (41.4°F).Humidity
In Heilbronn, the average relative humidity in April is 73%.Rainfall
April is the month with the least rainfall. Rain falls for 13.1 days and accumulates 27mm (1.06") of precipitation.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows in Heilbronn. During 0.5 snowfall days, in April, Heilbronn aggregates 5mm (0.2") of snow. Throughout the year, there are 26.9 snowfall days, and 231mm (9.09") of snow is accumulated.Daylight
In Heilbronn, the average length of the day in April is 13h and 45min.On the first day of April, sunrise is at 06:59 and sunset at 19:54. On the last day of the month, sunrise is at 06:02 and sunset at 20:38 CEST.
Sunshine
The average sunshine in April is 9h.UV index
The average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: A daily maximum UV index of 4 in April translates into the following instructions:
Put precautions into practice - Guidance to elude sunburn is provided. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Heilbronn, Germany
- Average high temperature in April: 15.3°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 April: 5.2°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 April
Heilbronn, Germany
- Average pressure in April: 1015.7mbar
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 April
Heilbronn, Germany
- Average wind speed in April: 10.2km/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 April
Heilbronn, Germany
- Average humidity in April: 73%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (72%).
Average rainfall in April
Heilbronn, Germany
- Average rainfall in April: 27mm
The wettest month (with the highest rainfall) is May (72mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in April
Heilbronn, Germany
- Average rainfall days in April: 13.1 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 April
Heilbronn, Germany
- Average snowfall in April: 5mm
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 April
Heilbronn, Germany
- Average snowfall days in April: 0.5 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 April /
Average sunshine in April
Heilbronn, Germany
- Average daylight in April: 13h and 42min
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 April: 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 April
Heilbronn, Germany
- Average sunshine days in April: 14.5 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 April
Heilbronn, Germany
- Average UV index in April: 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 April
Heilbronn, Germany
- Average cloud cover in April: 39
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 April
Heilbronn, Germany
- Average visibility in April: 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).
