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 sea temperature 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
Weather in September
Temperature
Resarö observes a small decrease in the average high-temperature with the arrival of September, falling from August's enjoyable 19.7°C (67.5°F) to a still refreshing 15.4°C (59.7°F). In Resarö, September nights experience a modest descent in temperature from daily peaks, cooling down to an average of 10.6°C (51.1°F).Humidity
The average relative humidity in September is 79%.Rainfall
In Resarö, in September, during 9.6 rainfall days, 11mm (0.43") of precipitation is typically accumulated. In Resarö, 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 in Resarö, Sweden.Sea temperature
In Resarö, the average seawater temperature in September is 14.9°C (58.8°F).Note: Swimming in 14.9°C (58.8°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.
Daylight
The average length of the day in September is 12h and 50min.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
The average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 3 during September, leads to the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. When the Sun is at its strongest around midday, find shade and limit exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Frequently asked questions
What is the temperature in September in Resarö?
What is the average humidity in September in Resarö?
How much does it rain in Resarö in September?
When it does not snow in Resarö?
Does it snow in Resarö in September?
What is the sea water temperature in September in Resarö?
What is the average length of the day in September in Resarö?
When is the sunrise / sunset in September in Resarö?
How many hours of sunshine does Resarö have in September?
What is the UV index intensity in September in Resarö?
Average temperature in September
Resarö, 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
Resarö, 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
Resarö, 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
Resarö, 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
Resarö, 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
Resarö, 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
Resarö, 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
Resarö, 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 sea temperature in September
Resarö, Sweden
- Average sea temperature in September: 14.9°C
The best month for swimming (with the highest average sea temperature) is August (18.8°C).
The coldest month (with the lowest average sea temperature) is February (1°C).
Average daylight in September /
Average sunshine in September
Resarö, 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
Resarö, 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
Resarö, 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
Resarö, 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
Resarö, 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).
Resarö, Sweden
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