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
The arrival of September signals a subtle shift in temperature, down from a comfortable 18.8°C (65.8°F) in August to a mild 15.1°C (59.2°F). Väddö notes a steady average temperature of 11.5°C (52.7°F) during the nights of September.Humidity
In September, the average relative humidity in Väddö is 79%.Rainfall
In September, the rain falls for 13.1 days. Throughout September, 27mm (1.06") of precipitation is accumulated. In Väddö, during the entire year, the rain falls for 132.8 days and collects up to 348mm (13.7") of precipitation.Snowfall
June through September are months without snowfall in Väddö.Daylight
In September, the average length of the day is 12h and 52min.On the first day of September in Väddö, sunrise is at 05:41 and sunset at 19:48. On the last day of the month, sunrise is at 06:49 and sunset at 18:19 CEST.
Sunshine
In Väddö, the average sunshine in September is 8.2h.UV index
In Väddö, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The Sun's radiation is especially intense around midday; try to stay in shade during this period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Väddö in September?
What is the average humidity in September in Väddö?
How much does it rain in Väddö in September?
When it does not snow in Väddö?
Does it snow in Väddö in September?
What is the average length of the day in September in Väddö?
When are sunrise and sunset in September in Väddö?
How long on average sun shines in September in Väddö?
What is the UV index reading in September in Väddö?
Average temperature in September
Väddö, Sweden
- Average high temperature in September: 15.1°C
The warmest month (with the highest average high temperature) is August (18.8°C).
The month with the lowest average high temperature is February (0.1°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is February (-2.5°C).
Average pressure in September
Väddö, Sweden
- Average pressure in September: 1013mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1007.1mbar).
Average wind speed in September
Väddö, Sweden
- Average wind speed in September: 19.3km/h
The windiest month (with the highest average wind speed) is December (24.3km/h).
The calmest month (with the lowest average wind speed) is July (16.3km/h).
Average humidity in September
Väddö, Sweden
- Average humidity in September: 79%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Väddö, Sweden
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is July (50mm).
The driest month (with the least rainfall) is April (15mm).
Average rainfall days in September
Väddö, Sweden
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is August (16.2 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in September
Väddö, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is March (65mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Väddö, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Väddö, Sweden
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is June (Average sunshine: 12h and 48min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in September
Väddö, Sweden
- Average sunshine days in September: 13.6 days
The months with the most sunshine days are April and May (16.3 days).
The month with the least sunshine days is December (11.5 days).
Average UV index in September
Väddö, 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
Väddö, Sweden
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Väddö, Sweden
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, November and December (9km).
