September weather forecastKiruna, Sweden
September
Weather in September
September kick starts the fall season, and changes in weather conditions become more apparent. The return of snowfall in September, although only 40mm (1.57"), heralds the onset of the upcoming winter season. Temperatures continue to drop, and daylight hours decrease considerably. Despite the minor alterations, the fall ambiance still dominates the scene. By the end, chilly winds start to regain their strength.Temperature
Kiruna's September weather shows a moderate shift in high-temperatures, falling from August's mild 14.8°C (58.6°F) to a chilly 9.5°C (49.1°F). Kiruna experiences an average low-temperature reading of 2.9°C (37.2°F) throughout September.Humidity
In Kiruna, Sweden, the average relative humidity in September is 82%.Rainfall
In Kiruna, Sweden, in September, during 13.5 rainfall days, 44mm (1.73") of precipitation is typically accumulated. In Kiruna, during the entire year, the rain falls for 108 days and collects up to 373mm (14.69") of precipitation.Snowfall
Months with snowfall in Kiruna are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 3 snowfall days, it receives 40mm (1.57") of snow. Throughout the year, in Kiruna, there are 134.8 snowfall days, and 1187mm (46.73") of snow is accumulated.Daylight
In Kiruna, Sweden, the average length of the day in September is 13h and 13min.On the first day of September, sunrise is at 05:08 and sunset at 20:09. On the last day of the month, sunrise is at 06:50 and sunset at 18:07 CEST.
Sunshine
In Kiruna, the average sunshine in September is 6.8h.UV index
In September, the average daily maximum UV index in Kiruna is 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high UV index of 2 in September translates into the following recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kiruna, Sweden
- Average high temperature in September: 9.5°C
The warmest month (with the highest average high temperature) is July (16.8°C).
The month with the lowest average high temperature is January (-9.9°C).
- Average low temperature in September: 2.9°C
The month with the highest average low temperature is July (8.9°C).
The coldest month (with the lowest average low temperature) is February (-16°C).
Average pressure in September
Kiruna, Sweden
- Average pressure in September: 1010mbar
The month with the highest atmospheric pressure is May (1014.3mbar).
The month with the lowest atmospheric pressure is December (1003.7mbar).
Average wind speed in September
Kiruna, Sweden
- Average wind speed in September: 12.5km/h
The windiest month (with the highest average wind speed) is June (14km/h).
The calmest month (with the lowest average wind speed) is April (10.7km/h).
Average humidity in September
Kiruna, Sweden
- Average humidity in September: 82%
The months with the highest relative humidity are January, February and April (92%).
The month with the lowest relative humidity is June (65%).
Average rainfall in September
Kiruna, Sweden
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is July (53mm).
The driest month (with the least rainfall) is March (20mm).
Average rainfall days in September
Kiruna, Sweden
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in September
Kiruna, Sweden
- Average snowfall in September: 40mm
The month with the highest snowfall is December (204mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Kiruna, Sweden
- Average snowfall days in September: 3 days
The month with the highest number of snowfall days is December (21.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Kiruna, Sweden
- Average daylight in September: 13h and 12min
The month with the longest days is August (Average daylight: 17h and 18min).
The month with the shortest days is June (Average daylight: 0h and 0min).
- Average sunshine in September: 6h and 48min
The month with the most sunshine is August (Average sunshine: 9h and 12min).
The month with the least sunshine is June (Average sunshine: 0h and 36min).
Average sunshine days in September
Kiruna, Sweden
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is August (15 days).
The month with the least sunshine days is December (9.5 days).
Average UV index in September
Kiruna, Sweden
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, February, April, November and December (UV index 1).
Average cloud cover in September
Kiruna, Sweden
- Average cloud cover in September: 55
The months with the most cloud cover are January and December (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 51).
Average visibility in September
Kiruna, Sweden
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January and February (6km).





