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
Bäckviken in September undergoes a slight reduction in the average high-temperature, shifting from August's pleasant 20.7°C (69.3°F) to an enjoyable 17.1°C (62.8°F). In Bäckviken, the nighttime temperature shows a slight difference from the daytime high, averaging to a cool 12.3°C (54.1°F) during September.Humidity
In Bäckviken, the average relative humidity in September is 78%.Rainfall
In Bäckviken, Sweden, in September, during 16.5 rainfall days, 41mm (1.61") of precipitation is typically accumulated. In Bäckviken, during the entire year, the rain falls for 181.1 days and collects up to 463mm (18.23") of precipitation.Snowfall
In Bäckviken, snow does not fall in May through October.Daylight
In September, the average length of the day in Bäckviken is 12h and 44min.On the first day of September, sunrise is at 06:14 and sunset at 20:03. On the last day of the month, sunrise is at 07:11 and sunset at 18:46 CEST.
Sunshine
The average sunshine in September in Bäckviken is 7.7h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 4 during September leads to these advisories:
Prioritize safety - Suggestions to prevent sun damage are offered. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Bäckviken?
What is the average humidity in September in Bäckviken?
How much does it rain in Bäckviken in September?
When it does not snow in Bäckviken?
What is the average length of the day in September in Bäckviken?
When are sunrise and sunset in September in Bäckviken?
How many hours of sunshine does Bäckviken have in September?
What is the UV index intensity in September in Bäckviken?
Average temperature in September
Bäckviken, Sweden
- Average high temperature in September: 17.1°C
The warmest month (with the highest average high temperature) is July (20.8°C).
The month with the lowest average high temperature is January (2.3°C).
- Average low temperature in September: 12.3°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is February (-0.5°C).
Average pressure in September
Bäckviken, Sweden
- Average pressure in September: 1015.2mbar
The month with the highest atmospheric pressure is April (1015.5mbar).
The month with the lowest atmospheric pressure is December (1011mbar).
Average wind speed in September
Bäckviken, Sweden
- Average wind speed in September: 16.2km/h
The windiest month (with the highest average wind speed) is December (19.4km/h).
The calmest months (with the lowest average wind speed) are June and July (14.2km/h).
Average humidity in September
Bäckviken, Sweden
- Average humidity in September: 78%
The months with the highest relative humidity are January, February, November and December (87%).
The months with the lowest relative humidity are April and May (73%).
Average rainfall in September
Bäckviken, Sweden
- Average rainfall in September: 41mm
The wettest month (with the highest rainfall) is August (57mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in September
Bäckviken, Sweden
- Average rainfall days in September: 16.5 days
The month with the highest number of rainy days is August (19.2 days).
The month with the least rainy days is February (10.3 days).
Average snowfall in September
Bäckviken, 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
Bäckviken, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Bäckviken, Sweden
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 30min).
The month with the shortest days is December (Average daylight: 7h and 6min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in September
Bäckviken, Sweden
- Average sunshine days in September: 9.7 days
The month with the most sunshine days is April (13.8 days).
The month with the least sunshine days is December (7.4 days).
Average UV index in September
Bäckviken, 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
Bäckviken, Sweden
- Average cloud cover in September: 47
The month with the most cloud cover is December (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Bäckviken, Sweden
- Average visibility in September: 10km
The months with the highest visibility are April, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, May, October, November and December (9km).
