Troms og Finnmark (Tromsø)
September
Weather in Troms og Finnmark for September 2026
Your guide to Troms og Finnmark weather in September - trends and predictions
Until now, September 2026 in Troms og Finnmark is slightly cooler than the historical average by 1.6 °C.
The forecast for the upcoming days in Troms og Finnmark predicts a temperature of 10.6 °C, which is slightly above the historical average.
In general, the average temperature in Troms og Finnmark at the beginning of September is 11.4 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 10.3 °C by the end of September.
The climate of Troms og Finnmark in September is notably wet, with an average of 15 rainy days, and a total of 125.6 mm of precipitation.
Temperatures
Rain 🌧️
14
Dry days
15
Rainy days
0
Snow days
10°/6°
Temperatures
19 km/h
Avg max wind
80 %
Avg humidity
Troms og Finnmark Weather September
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What’s the Weather Like in Troms og Finnmark This September?
Discover the average temperatures and weather trends across Troms og Finnmark’s cities this September.
Temperatures trend during September in Troms og Finnmark
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September weather in Troms og Finnmark day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Partly cloudy | 12° /6° | 4.1 mm | 3 | |
| 2 Sept. |  Patchy rain possible | 12° /6° | 3 mm | 3 | |
| 3 Sept. | Light rain shower | 12° /7° | 3.5 mm | 3 | |
| 4 Sept. | Patchy rain possible | 11° /6° | 9.6 mm | 3 | |
| 5 Sept. | Light rain shower | 10° /6° | 8.8 mm | 2 | |
| 6 Sept. | Patchy rain possible | 11° /7° | 4 mm | 3 | |
| 7 Sept. | Patchy rain possible | 12° /7° | 1.9 mm | 3 | |
| 8 Sept. | Patchy rain possible | 13° /8° | 4 mm | 3 | |
| 9 Sept. | Patchy rain possible | 13° /9° | 3.9 mm | 3 | |
| 10 Sept. | Patchy rain possible | 13° /8° | 4.6 mm | 3 | |
| 11 Sept. |  Overcast | 13° /8° | 5 mm | 3 | |
| 12 Sept. | Patchy rain possible | 13° /7° | 2.2 mm | 3 | |
| 13 Sept. | Light rain shower | 11° /5° | 5.5 mm | 2 | |
| 14 Sept. |  Moderate rain at times | 8° /5° | 3 mm | 2 | |
| 15 Sept. | Overcast | 11° /4° | 0.3 mm | 2 | |
| 16 Sept. | Partly cloudy | 11° /6° | 1.6 mm | 3 | |
| 17 Sept. | Light rain shower | 9° /4° | 4.5 mm | 2 | |
| 18 Sept. | Overcast | 8° /4° | 6.5 mm | 2 | |
| 19 Sept. | Patchy rain possible | 9° /3° | 1.4 mm | 2 | |
| 20 Sept. | Overcast | 9° /6° | 0.2 mm | 0.8 | |
| 21 Sept. | Patchy rain possible | 8° /6° | 2.9 mm | 0.2 | |
| 22 Sept. | Overcast | 9° /6° | 1.2 mm | 0.9 | |
| 23 Sept. | Patchy rain possible | 10° /7° | 2.4 mm | 0.8 | |
| 24 Sept. | Patchy rain possible | 9° /6° | 2.9 mm | 2 | |
| 25 Sept. | Overcast | 10° /6° | 1.8 mm | 2 | |
| 26 Sept. | Light rain shower | 10° /8° | 13.3 mm | 2 | |
| 27 Sept. | Overcast | 9° /7° | 4.5 mm | 2 | |
| 28 Sept. | Overcast | 13° /9° | 1.8 mm | 4 | |
| 29 Sept. | Overcast | 12° /8° | 3.1 mm | 3 | |
| 30 Sept. | Light rain shower | 9° /8° | 15.7 mm | 3 | |
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Important Notice
Our weather forecast for Troms og Finnmark in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Troms og Finnmark forecast closer to your planned date for the most up-to-date weather information.
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Troms og Finnmark in September - FAQ
What are the expected maximum and minimum temperatures in Troms og Finnmark during September?
During September, expect a variety of temperatures with highs around 10° and lows near 6°, suitable for diverse activities and preferences.
How much rainfall should be expected in Troms og Finnmark during September?
Significant rainfall exceeding 125.6 mm is expected in Troms og Finnmark during September, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Troms og Finnmark in September 2026?
Troms og Finnmark typically sees 2.6 cm of snowfall during September.
What are the typical wind conditions in Troms og Finnmark during September?
The average wind speed in Troms og Finnmark during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Troms og Finnmark
Explore the daily rainfall trends and prepare for Troms og Finnmarks September weather 💧
Typically, Troms og Finnmark has 15 rainy days in September with a total of 125.6 mm of rainfall.
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