September weather forecastGrästorp, Sweden
September
Weather in September
The first month of the autumn, September, is still a mild month in Grästorp, Sweden, with an average temperature varying between 9.8°C (49.6°F) and 15.9°C (60.6°F).Temperature
With the beginning of September, the average high-temperature shows a small decrease, transitioning from a comfortable 19.7°C (67.5°F) in August to a moderate 15.9°C (60.6°F). Throughout September, Grästorp witnesses a nighttime temperature average of 9.8°C (49.6°F).Humidity
In September, the average relative humidity in Grästorp, Sweden, is 80%.Rainfall
In Grästorp, in September, it is raining for 14 days, with typically 31mm (1.22") of accumulated precipitation. Throughout the year, in Grästorp, Sweden, there are 156.1 rainfall days, and 409mm (16.1") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Grästorp.Daylight
The average length of the day in September is 12h and 49min.On the first day of the month, sunrise is at 06:09 and sunset at 20:08. On the last day of September, sunrise is at 07:12 and sunset at 18:45 CEST.
Sunshine
In September, the average sunshine is 7.8h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A typical high UV index of 4 in September suggests the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grästorp, 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 (0.5°C).
- Average low temperature in September: 9.8°C
The month with the highest average low temperature is August (12.5°C).
The coldest month (with the lowest average low temperature) is February (-3.1°C).
Average pressure in September
Grästorp, Sweden
- Average pressure in September: 1013.6mbar
The months with the highest atmospheric pressure are April and May (1014.4mbar).
The month with the lowest atmospheric pressure is December (1008.5mbar).
Average wind speed in September
Grästorp, Sweden
- Average wind speed in September: 14.4km/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 June (12.5km/h).
Average humidity in September
Grästorp, Sweden
- Average humidity in September: 80%
The months with the highest relative humidity are January, February, November and December (88%).
The months with the lowest relative humidity are April and May (72%).
Average rainfall in September
Grästorp, Sweden
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is June (48mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Grästorp, Sweden
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in September
Grästorp, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is January (71mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Grästorp, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grästorp, 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 48min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).
Average sunshine days in September
Grästorp, Sweden
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is April (16.7 days).
The month with the least sunshine days is August (10.8 days).
Average UV index in September
Grästorp, Sweden
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Grästorp, Sweden
- Average cloud cover in September: 47
The month with the most cloud cover is February (Cloud cover 66).
The months with the least cloud cover are June and July (Cloud cover 41).
Average visibility in September
Grästorp, Sweden
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January, February, March and December (8km).
