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 shift from August to September includes a small decrease in the average high-temperature, from a pleasant 20.8°C (69.4°F) to a refreshing 16.2°C (61.2°F). Sigtuna throughout September, experiences an average nighttime temperature of 9.3°C (48.7°F).Humidity
The average relative humidity in September in Sigtuna, Sweden, is 80%.Rainfall
In September, the rain falls for 12.8 days. Throughout September, 24mm (0.94") of precipitation is accumulated. In Sigtuna, during the entire year, the rain falls for 141.1 days and collects up to 377mm (14.84") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Sigtuna, the average length of the day in September is 12h and 51min.On the first day of the month, sunrise is at 05:46 and sunset at 19:51. On the last day of September, sunrise is at 06:53 and sunset at 18:24 CEST.
Sunshine
In September, the average sunshine is 8.2h.UV index
The average daily maximum UV index in September in Sigtuna, Sweden, is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 3 during September translates into the following guidance:
Take measures. Individuals with light skin might experience burns in under 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Sigtuna in September?
What is the average humidity in September in Sigtuna?
How much does it rain in Sigtuna in September?
When it does not snow in Sigtuna?
Does it snow in Sigtuna in September?
How many hours of daylight does Sigtuna have in September?
When are sunrise and sunset in September in Sigtuna?
How long on average sun shines in September in Sigtuna?
What is the UV index intensity in September in Sigtuna?
Average temperature in September
Sigtuna, Sweden
- Average high temperature in September: 16.2°C
The warmest month (with the highest average high temperature) is July (21.6°C).
The month with the lowest average high temperature is January (-0.9°C).
- Average low temperature in September: 9.3°C
The month with the highest average low temperature is July (13°C).
The coldest month (with the lowest average low temperature) is February (-4.3°C).
Average pressure in September
Sigtuna, Sweden
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1007.6mbar).
Average wind speed in September
Sigtuna, Sweden
- Average wind speed in September: 12.8km/h
The windiest month (with the highest average wind speed) is December (16.2km/h).
The calmest months (with the lowest average wind speed) are July and August (11.5km/h).
Average humidity in September
Sigtuna, Sweden
- Average humidity in September: 80%
The months with the highest relative humidity are January, February and December (89%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Sigtuna, Sweden
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is July (56mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in September
Sigtuna, Sweden
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (5.4 days).
Average snowfall in September
Sigtuna, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (99mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Sigtuna, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sigtuna, Sweden
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 36min).
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 6min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in September
Sigtuna, Sweden
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (15.6 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in September
Sigtuna, 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
Sigtuna, Sweden
- Average cloud cover in September: 44
The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Sigtuna, Sweden
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February, March, November and December (8km).
