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Troms og Finnmark (Tromsø)
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Norway weather

Weather in Troms og Finnmark for September 2025

Your guide to Troms og Finnmark weather in September - trends and predictions

    Official Weather Alert ⚠️

  • Gale Warning - See hour by hour.

    • Snow Forecast ❄️

  • With an average of 2 snowy days, Troms og Finnmark usually enjoys a light touch of snow in September.
    According to Troms og Finnmark snow forecast for September 2025, 4 snowy days are expected until the end of the month. The closest date with snow is Friday, 26 September.

    • Temperatures

  • So far, September 2025 in Troms og Finnmark shows a warmer trend than usual by 3.5 °C.

  • The forecast for the next days in Troms og Finnmark predicts temperatures to be around 6 °C, close to the historical average.

  • In general, the average temperature in Troms og Finnmark at the beginning of September is 12 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 4 °C by the end of September.

    • Rain 🌧️

  • Troms og Finnmark experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 127.9 mm.

Average dry days
3
Dry days
Average rainy days
25
Rainy days
Average snowy days
2
Snow days
Average temperatures
9°/5°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
80 %
Avg humidity

Troms og Finnmark Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Partly cloudy
12°
2
Moderate rain at times
13°
3
Moderate rain at times
12°
4
Patchy rain possible
12°
5
Light rain shower
11°
6
Patchy rain possible
12°
7
Patchy rain possible
12°
8
Partly cloudy
14°
9
Patchy rain possible
14°
10
Patchy rain possible
14°
11
Overcast
13°
12
Patchy rain possible
13°
13
Light rain shower
10°
14
Overcast
8°
15
Cloudy
10°
16
Partly cloudy
11°
17
Light rain shower
8°
18
Weather Alert Patchy rain possible
9°
19
Patchy rain possible
9°
20
Moderate rain
10°
21
Patchy rain possible
9°
22
Patchy rain possible
7°
23
Patchy rain possible
4°
24
Patchy rain possible
6°
25
Patchy rain possible
7°
26
Patchy rain possible
5°
27
Moderate rain
4°
28
Patchy rain possible
3°
29
Heavy snow
1°
30
Heavy snow
2°

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.
Patchy rain possibleTromsø9 °C / 5 °CPatchy rain possibleHonningsvåg11 °C / 9 °CPatchy rain possibleKirkenes12 °C / 8 °CPatchy light drizzleAlta10 °C / 6 °CPatchy rain possibleDjupvik12 °C / 5 °CPatchy rain possibleHammerfest10 °C / 7 °CMore Locations

Temperatures trend during September in Troms og Finnmark

See the weather trend as well as the moving average line

September weather in Troms og Finnmark day by day

Click on a date for more information
August October
Date Weather Temperatures Rain Snow More
1 Sept. Partly cloudy
Partly cloudy
 12° /6° 2.9 mm 0 cm
2 Sept. Moderate rain at times
Moderate rain at times
 13° /6° 2.7 mm 0 cm
3 Sept. Moderate rain at times
Moderate rain at times
 12° /7° 3.4 mm 0 cm
4 Sept. Patchy rain possible
Patchy rain possible
 12° /6° 11 mm 0 cm
5 Sept. Light rain shower
Light rain shower
 11° /7° 10.5 mm 0 cm
6 Sept. Patchy rain possible
Patchy rain possible
 12° /8° 4.8 mm 0 cm
7 Sept. Patchy rain possible
Patchy rain possible
 12° /8° 2.2 mm 0 cm
8 Sept. Partly cloudy
Partly cloudy
 14° /9° 4.3 mm 0 cm
9 Sept. Patchy rain possible
Patchy rain possible
 14° /9° 3.8 mm 0 cm
10 Sept. Patchy rain possible
Patchy rain possible
 14° /8° 5.3 mm 0 cm
11 Sept. Overcast
Overcast
 13° /8° 6 mm 0 cm
12 Sept. Patchy rain possible
Patchy rain possible
 13° /7° 2.6 mm 0 cm
13 Sept. Light rain shower
Light rain shower
 10° /5° 2.9 mm 0 cm
14 Sept. Overcast
Overcast
 8° /5° 1.5 mm 0 cm
15 Sept. Cloudy
Cloudy
 10° /4° 0.4 mm 0 cm
16 Sept. Partly cloudy
Partly cloudy
 11° /6° 0.5 mm 0 cm
17 Sept. Light rain shower
Light rain shower
 8° /4° 3.1 mm 0 cm
18 Sept. Patchy rain possible
Patchy rain possible
 9° /5° 1.8 mm 0 cm
19 Sept. Patchy rain possible
Patchy rain possible
 9° /5° 0.2 mm 0 cm
20 Sept. Moderate rain
Moderate rain
 10° /5° 7.7 mm 0 cm
21 Sept. Patchy rain possible
Patchy rain possible
 9° /5° 0.6 mm 0 cm
22 Sept. Patchy rain possible
Patchy rain possible
 7° /4° 0.8 mm 0 cm
23 Sept. Patchy rain possible
Patchy rain possible
 4° /1° 0.5 mm 0 cm
24 Sept. Patchy rain possible
Patchy rain possible
 6° /1° 1.3 mm 0 cm
25 Sept. Patchy rain possible
Patchy rain possible
 7° /3° 2.7 mm 0 cm
26 Sept. Patchy rain possible
Patchy rain possible
 5° /1° 4 mm 0.5 cm
27 Sept. Moderate rain
Moderate rain
 4° /1° 8.3 mm 0 cm
28 Sept. Patchy rain possible
Patchy rain possible
 3° /1° 3.8 mm 2.3 cm
29 Sept. Heavy snow
Heavy snow
 1° /-1° 7.2 mm 5.2 cm
30 Sept. Heavy snow
Heavy snow
 2° /-1° 6.3 mm 4.5 cm
Next
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 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 💧
Provinces in Troms og Finnmark
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AltaHammerfestKåfjordNordkappSør-VarangerTromsø
Top locations in Troms og Finnmark
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AltaDjupvikHammerfestHonningsvågKirkenesTromsø
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Location coordinates 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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