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
Weather in September
Temperature
As August transitions into September, Viggbyholm sees a gentle drop in the average high-temperature, transitioning from a pleasant 20.6°C (69.1°F) to an enjoyable 16.1°C (61°F). An average minimum temperature of 9.6°C (49.3°F) is recorded during the month of September.Humidity
In Viggbyholm, the average relative humidity in September is 80%.Rainfall
In Viggbyholm, in September, during 5.2 rainfall days, 4mm (0.16") of precipitation is typically accumulated. Throughout the year, there are 59.2 rainfall days, and 72mm (2.83") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Viggbyholm is 12h and 50min.On the first day of September in Viggbyholm, sunrise is at 05:45 and sunset at 19:49. On the last day of the month, sunrise is at 06:51 and sunset at 18:23 CEST.
Sunshine
The average sunshine in September in Viggbyholm is 8.1h.UV index
The average daily maximum UV index in September in Viggbyholm, Sweden, is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: During September, 3 as the daily maximum UV index converts into the following advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Frequently asked questions
What are September temperatures in Viggbyholm?
What is the average humidity in September in Viggbyholm?
How much does it rain in Viggbyholm in September?
When it does not snow in Viggbyholm?
Does it snow in Viggbyholm in September?
What is the average length of the day in September in Viggbyholm?
When is the sunrise / sunset in September in Viggbyholm?
How many hours of sunshine does Viggbyholm have in September?
How high is the UV index in September in Viggbyholm?
Average temperature in September
Viggbyholm, Sweden
- Average high temperature in September: 16.1°C
The warmest month (with the highest average high temperature) is July (21.3°C).
The month with the lowest average high temperature is January (-0.5°C).
- Average low temperature in September: 9.6°C
The month with the highest average low temperature is July (13.2°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).
Average pressure in September
Viggbyholm, Sweden
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).
Average wind speed in September
Viggbyholm, Sweden
- Average wind speed in September: 13.8km/h
The windiest month (with the highest average wind speed) is December (18.1km/h).
The calmest months (with the lowest average wind speed) are July and August (12.3km/h).
Average humidity in September
Viggbyholm, Sweden
- Average humidity in September: 80%
The months with the highest relative humidity are January, February and December (88%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Viggbyholm, Sweden
- Average rainfall in September: 4mm
The wettest month (with the highest rainfall) is July (9mm).
The driest month (with the least rainfall) is April (2mm).
Average rainfall days in September
Viggbyholm, Sweden
- Average rainfall days in September: 5.2 days
The month with the highest number of rainy days is July (6.8 days).
The month with the least rainy days is February (3 days).
Average snowfall in September
Viggbyholm, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (14mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Viggbyholm, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Viggbyholm, 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 1min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in September
Viggbyholm, Sweden
- Average sunshine days in September: 23.7 days
The month with the most sunshine days is March (24.4 days).
The month with the least sunshine days is December (21.4 days).
Average UV index in September
Viggbyholm, Sweden
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in September
Viggbyholm, Sweden
- Average cloud cover in September: 43
The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Viggbyholm, Sweden
- Average visibility in September: 9km
The months with the highest visibility are April and June (10km).
The months with the lowest visibility are January, February, March, May, July, August, September, October, November and December (9km).
Viggbyholm, Sweden
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