Troms og Finnmark (Tromsø)
September
Weather in Troms og Finnmark for September 2025
Your guide to Troms og Finnmark weather in September - trends and predictions
With an average of 2 snowy days, Troms og Finnmark usually enjoys a light touch of snow in September.
In general, the average temperature in Troms og Finnmark at the beginning of September is 11.1 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 8.7 °C by the end of September.
Troms og Finnmark experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 127.9 mm.
Snow Forecast ❄️
Temperatures
Rain 🌧️
3
Dry days
25
Rainy days
2
Snow days
9°/5°
Temperatures
19 km/h
Avg max wind
80 %
Avg humidity
Troms og Finnmark in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  12° | 2  12° | 3 11° | 4  11° | 5 10° | 6 11° | 7 11° |
| 8  13° | 9 13° | 10 13° | 11  11° | 12 12° | 13 9° | 14 7° |
| 15  9° | 16 10° | 17 8° | 18 8° | 19 9° | 20 7° | 21 7° |
| 22 9° | 23 8° | 24 7° | 25 8° | 26 9° | 27 10° | 28  10° |
| 29 9° | 30 8° |
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Temperatures trend during September in Troms og Finnmark
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Sept. | Partly cloudy | 12° /5° | 3.7 mm | 0 cm | |
| 2 Sept. | Moderate rain at times | 12° /6° | 3.1 mm | 0 cm | |
| 3 Sept. | Moderate rain at times | 11° /6° | 4.1 mm | 0 cm | |
| 4 Sept. | Patchy rain possible | 11° /5° | 13.4 mm | 0 cm | |
| 5 Sept. | Light rain shower | 10° /6° | 12.7 mm | 0 cm | |
| 6 Sept. | Patchy rain possible | 11° /7° | 5.6 mm | 0 cm | |
| 7 Sept. | Patchy rain possible | 11° /8° | 2.7 mm | 0 cm | |
| 8 Sept. | Heavy rain at times | 13° /8° | 5.4 mm | 0 cm | |
| 9 Sept. | Patchy rain possible | 13° /9° | 4.8 mm | 0 cm | |
| 10 Sept. | Patchy rain possible | 13° /8° | 6.6 mm | 0 cm | |
| 11 Sept. | Overcast | 11° /7° | 7.5 mm | 0 cm | |
| 12 Sept. | Patchy rain possible | 12° /6° | 3.2 mm | 0 cm | |
| 13 Sept. | Patchy rain possible | 9° /4° | 1.5 mm | 0 cm | |
| 14 Sept. | Overcast | 7° /4° | 1.5 mm | 0 cm | |
| 15 Sept. | Cloudy | 9° /3° | 0.5 mm | 0 cm | |
| 16 Sept. | Partly cloudy | 10° /5° | 0.6 mm | 0 cm | |
| 17 Sept. | Light rain shower | 8° /4° | 3.1 mm | 0 cm | |
| 18 Sept. | Overcast | 8° /4° | 9.3 mm | 0 cm | |
| 19 Sept. | Patchy rain possible | 9° /3° | 1.9 mm | 0 cm | |
| 20 Sept. | Patchy rain possible | 7° /2° | 3.4 mm | 0 cm | |
| 21 Sept. | Cloudy | 7° /2° | 5.1 mm | 0 cm | |
| 22 Sept. | Patchy rain possible | 9° /3° | 1.9 mm | 0 cm | |
| 23 Sept. | Patchy rain possible | 8° /4° | 4.5 mm | 0 cm | |
| 24 Sept. | Moderate rain at times | 7° /4° | 3.5 mm | 0 cm | |
| 25 Sept. | Patchy rain possible | 8° /3° | 3.1 mm | 0 cm | |
| 26 Sept. | Light rain shower | 9° /4° | 4.1 mm | 0 cm | |
| 27 Sept. | Overcast | 10° /5° | 1.4 mm | 0 cm | |
| 28 Sept. | Sunny | 10° /5° | 0.6 mm | 0 cm | |
| 29 Sept. | Sunny | 9° /4° | 6.6 mm | 2.9 cm | |
| 30 Sept. | Partly cloudy | 8° /3° | 2.4 mm | 0.3 cm | |
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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.
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 9° and lows near 5°, suitable for diverse activities and preferences.
How much rainfall should be expected in Troms og Finnmark during September?
Significant rainfall exceeding 127.9 mm is expected in Troms og Finnmark during September, occurring over more than 25 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Troms og Finnmark in September 2025?
Troms og Finnmark experiences an average snowfall of 3.1925 cm during September, occurring over 2 days.
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.
Troms og Finnmark snow forecast September 2025
Track daily snowfall levels and discover Troms og Finnmark’s snowy potential this September ❄️
September rainfall patterns in Troms og Finnmark
Explore the daily rainfall trends and prepare for Troms og Finnmarks September weather 💧
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Where is Troms og Finnmark?Get accurate weather forecasts for Troms og Finnmark, located at latitude 69.649 and longitude 18.955. Stay updated with localized weather information tailored for Troms og Finnmark.
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