Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from an enjoyable 19.7°C (67.5°F) to a moderate 15.5°C (59.9°F). Throughout September, Grimsås witnesses a consistent average low-temperature of 8.3°C (46.9°F).Humidity
The average relative humidity in September in Grimsås is 84%.Rainfall
In September, the rain falls for 16.4 days. Throughout September, 42mm (1.65") of precipitation is accumulated. In Grimsås, during the entire year, the rain falls for 174.1 days and collects up to 556mm (21.89") of precipitation.Snowfall
In Grimsås, Sweden, snow does not fall in June through September.Daylight
In Grimsås, the average length of the day in September is 12h and 47min.On the first day of the month, sunrise is at 06:08 and sunset at 20:03. On the last day of September, sunrise is at 07:08 and sunset at 18:42 CEST.
Sunshine
In September, the average sunshine is 6.4h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The UV index of 3 during September leads to these advisories:
Be vigilant - Preventing sunburn is recommended. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Grimsås?
What is the average humidity in September in Grimsås?
How many days does it rain in September in Grimsås?
When it does not snow in Grimsås?
Does it snow in Grimsås in September?
What is the average length of the day in September in Grimsås?
What time are sunrise and sunset in September in Grimsås?
How long on average sun shines in September in Grimsås?
What is the UV index intensity in September in Grimsås?
Average temperature in September
Grimsås, Sweden
- Average high temperature in September: 15.5°C
The warmest month (with the highest average high temperature) is July (20.5°C).
The month with the lowest average high temperature is January (-0.3°C).
- Average low temperature in September: 8.3°C
The month with the highest average low temperature is July (11.4°C).
The coldest month (with the lowest average low temperature) is February (-3.6°C).
Average pressure in September
Grimsås, Sweden
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is April (1015mbar).
The month with the lowest atmospheric pressure is December (1009.4mbar).
Average wind speed in September
Grimsås, Sweden
- Average wind speed in September: 13.1km/h
The windiest month (with the highest average wind speed) is December (16.3km/h).
The calmest month (with the lowest average wind speed) is August (11.9km/h).
Average humidity in September
Grimsås, Sweden
- Average humidity in September: 84%
The months with the highest relative humidity are November and December (91%).
The months with the lowest relative humidity are April and May (72%).
Average rainfall in September
Grimsås, Sweden
- Average rainfall in September: 42mm
The wettest month (with the highest rainfall) is June (58mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in September
Grimsås, Sweden
- Average rainfall days in September: 16.4 days
The month with the highest number of rainy days is August (19.8 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in September
Grimsås, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (171mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Grimsås, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grimsås, Sweden
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 17h and 54min).
The month with the shortest days is December (Average daylight: 6h and 42min).
- Average sunshine in September: 6h and 2min
The month with the most sunshine is June (Average sunshine: 9h and 24min).
The months with the least sunshine are November and December (Average sunshine: 2h and 36min).
Average sunshine days in September
Grimsås, Sweden
- Average sunshine days in September: 9.8 days
The month with the most sunshine days is April (13.1 days).
The month with the least sunshine days is December (8.2 days).
Average UV index in September
Grimsås, Sweden
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Grimsås, Sweden
- Average cloud cover in September: 58
The months with the most cloud cover are November and December (Cloud cover 74).
The months with the least cloud cover are April and May (Cloud cover 47).
Average visibility in September
Grimsås, Sweden
- Average visibility in September: 8km
The months with the highest visibility are April, May, June and July (9km).
The months with the lowest visibility are January, February, March, August, September, October, November and December (8km).
