September weather forecastVästervik, Sweden
September
Weather in September
September, the first month of the autumn in Västervik, is still a comfortable month, with an average temperature varying between 16.5°C (61.7°F) and 11.5°C (52.7°F).Temperature
The shift from August to September coincides with a small decrease in the average high-temperature, down to an enjoyable 16.5°C (61.7°F) from an agreeable 20.4°C (68.7°F). Västervik's average nighttime temperature in September modestly descends to a cool 11.5°C (52.7°F).Humidity
The average relative humidity in September is 77%.Rainfall
In Västervik, in September, during 9.7 rainfall days, 17mm (0.67") of precipitation is typically accumulated. In Västervik, during the entire year, the rain falls for 122.5 days and collects up to 281mm (11.06") of precipitation.Snowfall
In Västervik, snow does not fall in June through September.Sea temperature
In Västervik, the average seawater temperature in September is 15.8°C (60.4°F).Note: A majority do not enjoy swimming in water at 15.8°C (60.4°F). The difficulty in controlling breathing increases progressively as the temperature dips below 21°C (69.8°F).
Daylight
In Västervik, the average length of the day in September is 12h and 47min.On the first day of the month, sunrise is at 05:55 and sunset at 19:51. On the last day of September, sunrise is at 06:56 and sunset at 18:30 CEST.
Sunshine
In Västervik, the average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 4 during September translates into these guidelines:
Put precautions into practice - Ensuring skin and eye safety is a necessity. It's recommended to limit sun exposure when its radiation is at its peak during midday. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Västervik, Sweden
- Average high temperature in September: 16.5°C
The warmest month (with the highest average high temperature) is July (20.6°C).
The month with the lowest average high temperature is January (1.2°C).
- Average low temperature in September: 11.5°C
The months with the highest average low temperature are July and August (14.2°C).
The coldest month (with the lowest average low temperature) is February (-1.4°C).
Average pressure in September
Västervik, Sweden
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is December (1009.3mbar).
Average wind speed in September
Västervik, Sweden
- Average wind speed in September: 17.7km/h
The windiest month (with the highest average wind speed) is December (20.9km/h).
The calmest month (with the lowest average wind speed) is May (14.6km/h).
Average humidity in September
Västervik, Sweden
- Average humidity in September: 77%
The months with the highest relative humidity are February and November (86%).
The months with the lowest relative humidity are May and June (72%).
Average rainfall in September
Västervik, Sweden
- Average rainfall in September: 17mm
The wettest month (with the highest rainfall) is July (37mm).
The driest month (with the least rainfall) is April (9mm).
Average rainfall days in September
Västervik, Sweden
- Average rainfall days in September: 9.7 days
The month with the highest number of rainy days is July (14.5 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in September
Västervik, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (67mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Västervik, 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
Västervik, Sweden
- Average sea temperature in September: 15.8°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 March (1.7°C).
Average daylight in September /
Average sunshine in September
Västervik, 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 30min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in September
Västervik, Sweden
- Average sunshine days in September: 17.6 days
The month with the most sunshine days is April (18.2 days).
The month with the least sunshine days is February (12.1 days).
Average UV index in September
Västervik, Sweden
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Västervik, Sweden
- Average cloud cover in September: 39
The month with the most cloud cover is February (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Västervik, 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).
