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
In the transition to September, Österskär observes a minor drop in the average high-temperature, shifting from a comfortable 19.7°C (67.5°F) in August to a moderate 15.4°C (59.7°F). An average nighttime temperature of 10.6°C (51.1°F) marks September.Humidity
In Österskär, Sweden, the average relative humidity in September is 79%.Rainfall
In Österskär, in September, during 9.6 rainfall days, 11mm (0.43") of precipitation is typically accumulated. In Österskär, Sweden, during the entire year, the rain falls for 98.4 days and collects up to 140mm (5.51") of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Österskär is 12h and 51min.On the first day of the month, sunrise is at 05:44 and sunset at 19:48. On the last day of September, sunrise is at 06:50 and sunset at 18:22 CEST.
Sunshine
In September, the average sunshine is 8.3h.UV index
In Österskär, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Be vigilant - A duty to shield skin and eyes from injury exists. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Österskär in September?
What is the average humidity in September in Österskär?
How much does it rain in Österskär in September?
When it does not snow in Österskär?
Does it snow in Österskär in September?
What is the average length of the day in September in Österskär?
When is the sunrise / sunset in September in Österskär?
How long on average sun shines in September in Österskär?
What is the UV index reading in September in Österskär?
Average temperature in September
Österskär, Sweden
- Average high temperature in September: 15.4°C
The warmest month (with the highest average high temperature) is July (19.8°C).
The month with the lowest average high temperature is January (0°C).
- Average low temperature in September: 10.6°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (-2.8°C).
Average pressure in September
Österskär, Sweden
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).
Average wind speed in September
Österskär, Sweden
- Average wind speed in September: 16.7km/h
The windiest month (with the highest average wind speed) is December (21.8km/h).
The calmest month (with the lowest average wind speed) is July (14.2km/h).
Average humidity in September
Österskär, Sweden
- Average humidity in September: 79%
The months with the highest relative humidity are January, February, November and December (86%).
The month with the lowest relative humidity is May (74%).
Average rainfall in September
Österskär, Sweden
- Average rainfall in September: 11mm
The wettest month (with the highest rainfall) is July (18mm).
The driest month (with the least rainfall) is April (5mm).
Average rainfall days in September
Österskär, Sweden
- Average rainfall days in September: 9.6 days
The month with the highest number of rainy days is July (11.1 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in September
Österskär, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (32mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Österskär, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Österskär, Sweden
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 12min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is June (Average sunshine: 12h and 24min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in September
Österskär, Sweden
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is April (20.8 days).
The month with the least sunshine days is December (14.6 days).
Average UV index in September
Österskär, Sweden
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in September
Österskär, Sweden
- Average cloud cover in September: 41
The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Österskär, Sweden
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).
