September weather forecastMärsta, Sweden
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Märsta, Sweden, with temperature in the range of an average low of 9.2°C (48.6°F) and an average high of 16.2°C (61.2°F).Temperature
During the shift to September, a minor reduction in average high-temperature is observed, shifting from an agreeable 20.8°C (69.4°F) in August to a refreshing 16.2°C (61.2°F). Nighttime temperature in Märsta dips to a mean of 9.2°C (48.6°F) during September.Humidity
The average relative humidity in September in Märsta, Sweden, is 80%.Rainfall
In September, the rain falls for 12.8 days. Throughout September, 25mm (0.98") of precipitation is accumulated. In Märsta, during the entire year, the rain falls for 146.7 days and collects up to 392mm (15.43") of precipitation.Snowfall
In Märsta, snow does not fall in June through September.Daylight
The average length of the day in September in Märsta is 12h and 51min.On the first day of the month, sunrise is at 05:45 and sunset at 19:50. On the last day of September, sunrise is at 06:52 and sunset at 18:24 CEST.
Sunshine
The average sunshine in September in Märsta, Sweden, is 8.1h.UV index
The average daily maximum UV index in September in Märsta, Sweden, is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: During September, 3 as the daily maximum UV index converts into the following advice:
Undertake protective steps - Preventing sun damage is advised. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Märsta, Sweden
- Average high temperature in September: 16.2°C
The warmest month (with the highest average high temperature) is July (21.8°C).
The month with the lowest average high temperature is January (-1°C).
- Average low temperature in September: 9.2°C
The month with the highest average low temperature is July (13°C).
The coldest months (with the lowest average low temperature) are January and February (-4.3°C).
Average pressure in September
Märsta, 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
Märsta, Sweden
- Average wind speed in September: 12.5km/h
The windiest month (with the highest average wind speed) is December (15.9km/h).
The calmest months (with the lowest average wind speed) are July and August (11.3km/h).
Average humidity in September
Märsta, 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
Märsta, Sweden
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is July (48mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in September
Märsta, Sweden
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in September
Märsta, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is December (105mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Märsta, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Märsta, Sweden
- Average daylight in September: 12h and 54min
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 6min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in September
Märsta, Sweden
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is October (14 days).
The month with the least sunshine days is February (10.4 days).
Average UV index in September
Märsta, 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
Märsta, Sweden
- Average cloud cover in September: 44
The months with the most cloud cover are January and February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Märsta, 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).
