September weather forecastApelviken, Sweden
September
Weather in September
September, the first month of the autumn in Apelviken, is still a refreshing month, with an average temperature varying between 12.3°C (54.1°F) and 16.1°C (61°F).Temperature
The beginning of September brings a slight decrease in the average high-temperature, transitioning from 19.2°C (66.6°F) in August to a still comfortable 16.1°C (61°F). A modest nighttime temperature average of 12.3°C (54.1°F) characterizes September in Apelviken.Humidity
In Apelviken, the average relative humidity in September is 79%.Rainfall
In Apelviken, during September, the rain falls for 17.2 days and regularly aggregates up to 60mm (2.36") of precipitation. Throughout the year, in Apelviken, there are 179.3 rainfall days, and 584mm (22.99") of precipitation is accumulated.Snowfall
May through October are months without snowfall in Apelviken, Sweden.Daylight
In September, the average length of the day in Apelviken is 12h and 46min.On the first day of the month, sunrise is at 06:14 and sunset at 20:07. On the last day of September, in Apelviken, sunrise is at 07:13 and sunset at 18:47 CEST.
Sunshine
The average sunshine in September is 7.6h.UV index
In September, the average daily maximum UV index in Apelviken is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 4 during September translates into these guidelines:
Undertake protective steps - Preventing sun damage is advised. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Apelviken, Sweden
- Average high temperature in September: 16.1°C
The warmest months (with the highest average high temperature) are July and August (19.2°C).
The month with the lowest average high temperature is February (1.8°C).
- Average low temperature in September: 12.3°C
The month with the highest average low temperature is August (15.1°C).
The coldest month (with the lowest average low temperature) is February (-0.8°C).
Average pressure in September
Apelviken, Sweden
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is April (1015mbar).
The month with the lowest atmospheric pressure is December (1009.4mbar).
Average wind speed in September
Apelviken, Sweden
- Average wind speed in September: 19.6km/h
The windiest month (with the highest average wind speed) is December (23.9km/h).
The calmest months (with the lowest average wind speed) are May and June (16.8km/h).
Average humidity in September
Apelviken, 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 (74%).
Average rainfall in September
Apelviken, Sweden
- Average rainfall in September: 60mm
The wettest month (with the highest rainfall) is August (81mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in September
Apelviken, Sweden
- Average rainfall days in September: 17.2 days
The month with the highest number of rainy days is August (19.9 days).
The month with the least rainy days is February (9.5 days).
Average snowfall in September
Apelviken, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (50mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Apelviken, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Apelviken, Sweden
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 17h and 48min).
The month with the shortest days is December (Average daylight: 6h and 48min).
- Average sunshine in September: 7h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is November (Average sunshine: 3h and 24min).
Average sunshine days in September
Apelviken, Sweden
- Average sunshine days in September: 9.6 days
The month with the most sunshine days is April (15.8 days).
The month with the least sunshine days is December (8.5 days).
Average UV index in September
Apelviken, Sweden
- Average UV index in September: 4
The month with the highest UV index is June (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Apelviken, Sweden
- Average cloud cover in September: 48
The month with the most cloud cover is December (Cloud cover 66).
The month with the least cloud cover is June (Cloud cover 38).
Average visibility in September
Apelviken, 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).
