September weather forecastAndalen, Sweden
September
Weather in September
September, the first month of the autumn in Andalen, is still a mild month, with an average temperature ranging between min 12.7°C (54.9°F) and max 15.8°C (60.4°F).Temperature
As Andalen welcomes September, the average high-temperature records at a moderate 15.8°C (60.4°F), marking an insignificant deviation from the prior month. Andalen registers a gentle descent to an average nighttime low of 12.7°C (54.9°F) in September from its daytime highs.Humidity
In September, the average relative humidity is 78%.Rainfall
In Andalen, in September, it is raining for 11.2 days, with typically 16mm (0.63") of accumulated precipitation. Throughout the year, there are 123.7 rainfall days, and 186mm (7.32") of precipitation is accumulated.Snowfall
In Andalen, snow does not fall in April through October.Sea temperature
In Andalen, the average seawater temperature in September is 16.1°C (61°F).Note: Most people do not enjoy swimming in water of 16.1°C (61°F). Breathing control becomes harder as the temperature descends from 21°C (69.8°F) to 15°C (59°F).
Daylight
In Andalen, the average length of the day in September is 12h and 47min.On the first day of September in Andalen, sunrise is at 06:14 and sunset at 20:10. On the last day of the month, sunrise is at 07:15 and sunset at 18:49 CEST.
Sunshine
In September, the average sunshine in Andalen is 8.1h.UV index
The average daily maximum UV index in September in Andalen is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Adopt protective measures - It is advised to guard against sun damage. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Andalen, Sweden
- Average high temperature in September: 15.8°C
The warmest month (with the highest average high temperature) is July (18.5°C).
The month with the lowest average high temperature is February (1.8°C).
- Average low temperature in September: 12.7°C
The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is February (-0.3°C).
Average pressure in September
Andalen, Sweden
- Average pressure in September: 1013.7mbar
The month with the highest atmospheric pressure is April (1014.7mbar).
The month with the lowest atmospheric pressure is December (1008.8mbar).
Average wind speed in September
Andalen, Sweden
- Average wind speed in September: 22.6km/h
The windiest month (with the highest average wind speed) is December (27km/h).
The calmest month (with the lowest average wind speed) is June (18.4km/h).
Average humidity in September
Andalen, Sweden
- Average humidity in September: 78%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is May (75%).
Average rainfall in September
Andalen, Sweden
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is August (21mm).
The driest month (with the least rainfall) is April (8mm).
Average rainfall days in September
Andalen, Sweden
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is August (13.6 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in September
Andalen, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is January (12mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Andalen, Sweden
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average sea temperature in September
Andalen, Sweden
- Average sea temperature in September: 16.1°C
The best month for swimming (with the highest average sea temperature) is August (18.5°C).
The coldest month (with the lowest average sea temperature) is March (2.6°C).
Average daylight in September /
Average sunshine in September
Andalen, Sweden
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 0min).
The month with the shortest days is December (Average daylight: 6h and 42min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The months with the least sunshine are January, February and November (Average sunshine: 3h and 42min).
Average sunshine days in September
Andalen, Sweden
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is March (19.8 days).
The month with the least sunshine days is August (13.3 days).
Average UV index in September
Andalen, Sweden
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Andalen, Sweden
- Average cloud cover in September: 45
The months with the most cloud cover are February and November (Cloud cover 62).
The month with the least cloud cover is June (Cloud cover 36).
Average visibility in September
Andalen, Sweden
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).





