September weather forecastGrunnebo, Sweden
September
Weather in September
September, the first month of the autumn in Grunnebo, is still a mild month, with an average temperature varying between 9.7°C (49.5°F) and 15.9°C (60.6°F).Temperature
The average high-temperature shows a slight dip in September, from August's enjoyable 19.7°C (67.5°F) to a still refreshing 15.9°C (60.6°F). In the month of September, the nighttime temperature dips to a steady average of 9.7°C (49.5°F).Humidity
The average relative humidity in September in Grunnebo is 80%.Rainfall
In Grunnebo, in September, it is raining for 14.8 days, with typically 40mm (1.57") of accumulated precipitation. In Grunnebo, during the entire year, the rain falls for 170.1 days and collects up to 535mm (21.06") of precipitation.Snowfall
In Grunnebo, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 49min.On the first day of September, sunrise is at 06:11 and sunset at 20:10. On the last day of the month, sunrise is at 07:14 and sunset at 18:47 CEST.
Sunshine
The average sunshine in September is 7.6h.UV index
In Grunnebo, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grunnebo, Sweden
- Average high temperature in September: 15.9°C
The warmest month (with the highest average high temperature) is July (20.6°C).
The month with the lowest average high temperature is January (0.6°C).
- Average low temperature in September: 9.7°C
The month with the highest average low temperature is July (12.4°C).
The coldest month (with the lowest average low temperature) is February (-2.8°C).
Average pressure in September
Grunnebo, Sweden
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is April (1014.4mbar).
The month with the lowest atmospheric pressure is December (1008.4mbar).
Average wind speed in September
Grunnebo, Sweden
- Average wind speed in September: 13.6km/h
The windiest month (with the highest average wind speed) is December (15km/h).
The calmest months (with the lowest average wind speed) are June and July (12.1km/h).
Average humidity in September
Grunnebo, Sweden
- Average humidity in September: 80%
The months with the highest relative humidity are January, February, November and December (88%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Grunnebo, Sweden
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is October (58mm).
The driest month (with the least rainfall) is April (24mm).
Average rainfall days in September
Grunnebo, Sweden
- Average rainfall days in September: 14.8 days
The month with the highest number of rainy days is August (17.3 days).
The month with the least rainy days is February (9.5 days).
Average snowfall in September
Grunnebo, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is January (111mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Grunnebo, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grunnebo, Sweden
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 12min).
The month with the shortest days is December (Average daylight: 6h and 30min).
- Average sunshine in September: 7h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days in September
Grunnebo, Sweden
- Average sunshine days in September: 12.7 days
The month with the most sunshine days is April (14.5 days).
The month with the least sunshine days is February (9.8 days).
Average UV index in September
Grunnebo, Sweden
- Average UV index in September: 4
The month with the highest UV index is June (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Grunnebo, Sweden
- Average cloud cover in September: 47
The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 41).
Average visibility in September
Grunnebo, Sweden
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February, March, November and December (8km).
