September weather forecastTärnaby, Sweden
September
Weather in September
September, the first month of the autumn in Tärnaby, is also a frosty month, with an average temperature varying between 2.2°C (36°F) and 8°C (46.4°F).Temperature
The beginning of September brings a minor change in the average high-temperature, shifting from a cool 12.8°C (55°F) in August to a chilly 8°C (46.4°F). Tärnaby usually reports an average low-temperature of 2.2°C (36°F) during the month of September.Humidity
The average relative humidity in September is 86%.Rainfall
In Tärnaby, in September, it is raining for 14.2 days, with typically 43mm (1.69") of accumulated precipitation. Throughout the year, in Tärnaby, there are 124.1 rainfall days, and 560mm (22.05") of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall. September is the first month it typically snows in Tärnaby. Throughout September, in the average 4.5 snowfall days, it receives 59mm (2.32") of snow. In Tärnaby, during the entire year, snow falls for 191 days and aggregates up to 2454mm (96.61") of snow.Daylight
In Tärnaby, the average length of the day in September is 13h and 5min.On the first day of the month, sunrise is at 05:37 and sunset at 20:20. On the last day of September, in Tärnaby, sunrise is at 07:07 and sunset at 18:29 CEST.
Sunshine
In Tärnaby, the average sunshine in September is 5.5h.UV index
The months with the lowest UV index are January through April, September through December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 1 leads to the following instructions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. 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
Tärnaby, Sweden
- Average high temperature in September: 8°C
The warmest month (with the highest average high temperature) is July (14.8°C).
The month with the lowest average high temperature is January (-8.7°C).
- Average low temperature in September: 2.2°C
The month with the highest average low temperature is July (7°C).
The coldest months (with the lowest average low temperature) are January and February (-14.3°C).
Average pressure in September
Tärnaby, Sweden
- Average pressure in September: 1010.7mbar
The month with the highest atmospheric pressure is May (1014.6mbar).
The month with the lowest atmospheric pressure is December (1004.2mbar).
Average wind speed in September
Tärnaby, Sweden
- Average wind speed in September: 12km/h
The windiest month (with the highest average wind speed) is March (13.9km/h).
The calmest month (with the lowest average wind speed) is August (10.9km/h).
Average humidity in September
Tärnaby, Sweden
- Average humidity in September: 86%
The months with the highest relative humidity are January, February and December (95%).
The month with the lowest relative humidity is June (74%).
Average rainfall in September
Tärnaby, Sweden
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is January (72mm).
The driest months (with the least rainfall) are April and June (37mm).
Average rainfall days in September
Tärnaby, Sweden
- Average rainfall days in September: 14.2 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in September
Tärnaby, Sweden
- Average snowfall in September: 59mm
The month with the highest snowfall is January (477mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Tärnaby, Sweden
- Average snowfall days in September: 4.5 days
The month with the highest number of snowfall days is December (27 days).
The month with the least snowfall days is August (0.1 days).
Average daylight in September /
Average sunshine in September
Tärnaby, Sweden
- Average daylight in September: 13h and 6min
The month with the longest days is June (Average daylight: 22h and 48min).
The month with the shortest days is December (Average daylight: 3h and 24min).
- Average sunshine in September: 5h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 1h and 0min).
Average sunshine days in September
Tärnaby, Sweden
- Average sunshine days in September: 11 days
The month with the most sunshine days is August (12.4 days).
The month with the least sunshine days is December (3.6 days).
Average UV index in September
Tärnaby, Sweden
- Average UV index in September: 1
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, April, September, October, November and December (UV index 1).
Average cloud cover in September
Tärnaby, Sweden
- Average cloud cover in September: 65
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 53).
Average visibility in September
Tärnaby, Sweden
- Average visibility in September: 8km
The months with the highest visibility are June and July (9km).
The months with the lowest visibility are January, February and December (5km).
