September weather forecastGällö, Sweden
September
Weather in September
September, the first month of the autumn in Gällö, is also a fresh month, with an average temperature fluctuating between 12.5°C (54.5°F) and 5.5°C (41.9°F).Temperature
With September's onset, the average high-temperature recedes from August's enjoyable 17.8°C (64°F) to a fresh 12.5°C (54.5°F). In the month of September, an average of 5.5°C (41.9°F) marks the low-temperature in Gällö.Humidity
In Gällö, the average relative humidity in September is 82%.Rainfall
In Gällö, in September, during 13.6 rainfall days, 36mm (1.42") of precipitation is typically accumulated. Throughout the year, there are 132.9 rainfall days, and 449mm (17.68") of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall in Gällö. September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 8mm (0.31") of snow. Throughout the year, there are 116.1 snowfall days, and 1419mm (55.87") of snow is accumulated.Daylight
The average length of the day in September is 12h and 58min.On the first day of the month, sunrise is at 05:47 and sunset at 20:10. On the last day of September, sunrise is at 07:05 and sunset at 18:32 CEST.
Sunshine
In Gällö, Sweden, the average sunshine in September is 7.1h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 3 during September translates into the following directions:
Adopt protective measures - It is advised to guard against sun damage. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gällö, Sweden
- Average high temperature in September: 12.5°C
The warmest month (with the highest average high temperature) is July (19.3°C).
The month with the lowest average high temperature is January (-4.8°C).
- Average low temperature in September: 5.5°C
The month with the highest average low temperature is July (9.8°C).
The coldest month (with the lowest average low temperature) is February (-9.7°C).
Average pressure in September
Gällö, Sweden
- Average pressure in September: 1011.9mbar
The month with the highest atmospheric pressure is May (1014.4mbar).
The month with the lowest atmospheric pressure is December (1006.1mbar).
Average wind speed in September
Gällö, Sweden
- Average wind speed in September: 10.8km/h
The windiest months (with the highest average wind speed) are March and June (11.8km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).
Average humidity in September
Gällö, Sweden
- Average humidity in September: 82%
The months with the highest relative humidity are January and February (93%).
The months with the lowest relative humidity are May and June (68%).
Average rainfall in September
Gällö, Sweden
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is May (50mm).
The driest months (with the least rainfall) are February and April (27mm).
Average rainfall days in September
Gällö, Sweden
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in September
Gällö, Sweden
- Average snowfall in September: 8mm
The month with the highest snowfall is December (303mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Gällö, Sweden
- Average snowfall days in September: 0.5 days
The month with the highest number of snowfall days is January (20.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Gällö, Sweden
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 20h and 0min).
The month with the shortest days is December (Average daylight: 5h and 0min).
- Average sunshine in September: 7h and 6min
The months with the most sunshine are June and July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 24min).
Average sunshine days in September
Gällö, Sweden
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is August (15.2 days).
The month with the least sunshine days is March (7.8 days).
Average UV index in September
Gällö, Sweden
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Gällö, Sweden
- Average cloud cover in September: 54
The months with the most cloud cover are January and February (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 47).
Average visibility in September
Gällö, Sweden
- Average visibility in September: 8km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January and February (6km).
