September weather forecastBro, Sweden
September
Weather in September
September, the first month of the autumn in Bro, is still a refreshing month, with an average temperature ranging between max 16.2°C (61.2°F) and min 9.3°C (48.7°F).Temperature
September brings a slight decrease in temperature, down from a pleasant 20.8°C (69.4°F) in August to a comfortable 16.2°C (61.2°F). In Bro, September nights cool down to an average of 9.3°C (48.7°F).Humidity
In Bro, the average relative humidity in September is 80%.Rainfall
In Bro, during September, the rain falls for 12.8 days and regularly aggregates up to 24mm (0.94") of precipitation. In Bro, during the entire year, the rain falls for 141.1 days and collects up to 377mm (14.84") of precipitation.Snowfall
In Bro, Sweden, snow does not fall in June through September.Daylight
In September, the average length of the day in Bro, Sweden, is 12h and 51min.On the first day of the month, sunrise is at 05:47 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 in Bro is 8.2h.UV index
In Bro, the average daily maximum UV index in September 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: The UV index of 3 during September translates into the following guidance:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bro, 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
Bro, 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
Bro, 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
Bro, 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
Bro, 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
Bro, 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
Bro, 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
Bro, 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
Bro, Sweden
- Average daylight in September: 12h and 48min
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 12min
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
Bro, 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
Bro, 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
Bro, 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
Bro, 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).
