September weather forecastHenån, Sweden
September
Weather in September
The first month of the autumn, September, is still a mild month in Henån, Sweden, with temperature in the range of an average low of 11.1°C (52°F) and an average high of 15.8°C (60.4°F).Temperature
A mild drop in Henån's average high-temperature is observed in September, transitioning from an enjoyable 19.1°C (66.4°F) in August to a still refreshing 15.8°C (60.4°F). Henån's nights in September maintain a consistent average of 11.1°C (52°F), demonstrating a minimal differential from its daytime temperature.Humidity
The average relative humidity in September in Henån is 80%.Rainfall
In September, the rain falls for 16.1 days. Throughout September, 50mm (1.97") of precipitation is accumulated. In Henån, during the entire year, the rain falls for 172.9 days and collects up to 557mm (21.93") of precipitation.Snowfall
May through September are months without snowfall.Sea temperature
In September, the average sea temperature is 16°C (60.8°F).Note: For swimming, a surface water temperature of 16°C (60.8°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).
Daylight
In Henån, the average length of the day in September is 12h and 49min.On the first day of September in Henån, sunrise is at 06:13 and sunset at 20:12. On the last day of the month, sunrise is at 07:16 and sunset at 18:49 CEST.
Sunshine
In September, the average sunshine is 7.7h.UV index
In Henån, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. 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
Henån, Sweden
- Average high temperature in September: 15.8°C
The warmest month (with the highest average high temperature) is July (19.8°C).
The months with the lowest average high temperature are January and February (1.5°C).
- Average low temperature in September: 11.1°C
The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is February (-1.8°C).
Average pressure in September
Henån, Sweden
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is April (1014.5mbar).
The month with the lowest atmospheric pressure is December (1008.5mbar).
Average wind speed in September
Henån, Sweden
- Average wind speed in September: 16.7km/h
The windiest month (with the highest average wind speed) is December (19.2km/h).
The calmest month (with the lowest average wind speed) is June (14.3km/h).
Average humidity in September
Henån, Sweden
- Average humidity in September: 80%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is May (73%).
Average rainfall in September
Henån, Sweden
- Average rainfall in September: 50mm
The wettest month (with the highest rainfall) is August (69mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in September
Henån, Sweden
- Average rainfall days in September: 16.1 days
The month with the highest number of rainy days is August (18.6 days).
The month with the least rainy days is February (9.6 days).
Average snowfall in September
Henån, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is January (58mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Henån, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Henån, Sweden
- Average sea temperature in September: 16°C
The best month for swimming (with the highest average sea temperature) is August (18.4°C).
The coldest month (with the lowest average sea temperature) is March (2.7°C).
Average daylight in September /
Average sunshine in September
Henån, Sweden
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 6min).
The month with the shortest days is December (Average daylight: 6h and 30min).
- Average sunshine in September: 7h and 42min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in September
Henån, Sweden
- Average sunshine days in September: 11.5 days
The month with the most sunshine days is April (16.3 days).
The month with the least sunshine days is December (10.1 days).
Average UV index in September
Henån, Sweden
- Average UV index in September: 4
The months with the highest UV index are May and June (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Henån, Sweden
- Average cloud cover in September: 47
The month with the most cloud cover is February (Cloud cover 65).
The months with the least cloud cover are June and July (Cloud cover 39).
Average visibility in September
Henån, Sweden
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, October, November and December (9km).
