September weather forecastVallebo, Denmark
September
Weather in September
September, the first month of the autumn in Vallebo, is still a refreshing month, with an average temperature varying between 16.9°C (62.4°F) and 12.5°C (54.5°F).Temperature
September signifies a gentle decline in Vallebo's average high-temperature, easing from a pleasant 20.4°C (68.7°F) in August to a refreshing 16.9°C (62.4°F). Vallebo's average temperature during the nights of September is recorded at a fresh 12.5°C (54.5°F).Humidity
In September, the average relative humidity is 81%.Rainfall
In September, in Vallebo, the rain falls for 13.5 days. Throughout September, 40mm (1.57") of precipitation is accumulated. In Vallebo, during the entire year, the rain falls for 177.9 days and collects up to 454mm (17.87") of precipitation.Snowfall
In Vallebo, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 43min.On the first day of September, sunrise is at 06:18 and sunset at 20:04. On the last day of the month, sunrise is at 07:13 and sunset at 18:49 CEST.
Sunshine
The average sunshine in September is 7.9h.UV index
In Vallebo, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 4 in September suggests the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Vallebo, Denmark
- Average high temperature in September: 16.9°C
The warmest months (with the highest average high temperature) are July and August (20.4°C).
The month with the lowest average high temperature is January (2.8°C).
- Average low temperature in September: 12.5°C
The month with the highest average low temperature is August (14.9°C).
The coldest month (with the lowest average low temperature) is February (-0.3°C).
Average pressure in September
Vallebo, Denmark
- Average pressure in September: 1015.4mbar
The month with the highest atmospheric pressure is April (1015.6mbar).
The month with the lowest atmospheric pressure is November (1011.4mbar).
Average wind speed in September
Vallebo, Denmark
- Average wind speed in September: 16.2km/h
The windiest month (with the highest average wind speed) is December (19.6km/h).
The calmest months (with the lowest average wind speed) are June and July (14.6km/h).
Average humidity in September
Vallebo, Denmark
- Average humidity in September: 81%
The months with the highest relative humidity are January, November and December (88%).
The months with the lowest relative humidity are April, May, June, July and August (78%).
Average rainfall in September
Vallebo, Denmark
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is August (51mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Vallebo, Denmark
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is February (11.6 days).
Average snowfall in September
Vallebo, Denmark
- Average snowfall in September: 0mm
The month with the highest snowfall is December (45mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Vallebo, Denmark
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Vallebo, Denmark
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 18min).
The month with the shortest days is December (Average daylight: 7h and 12min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in September
Vallebo, Denmark
- Average sunshine days in September: 11.9 days
The month with the most sunshine days is April (14.3 days).
The month with the least sunshine days is December (6.9 days).
Average UV index in September
Vallebo, Denmark
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Vallebo, Denmark
- Average cloud cover in September: 45
The month with the most cloud cover is December (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Vallebo, Denmark
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is January (8km).
