easeweather.com
Tromsø
AltaArendalAskerAverøyaBergenBodøDjupvikDrammenFlåmFredrikstadGeirangerHammerfestHamnøyaHaugesundHonningsvågKirkenesKristiansandLeknesLillehammerLillestrømMoldeNarvikNordfjordeidOldenOsloRjukanSandnesSkjoldenStavangerSvolvær
Tromsø
TrondheimTynsetVossÅlesund More Locations
Norway weather

Weather in Tromsø for September 2025

Your guide to Tromsø weather in September - trends and predictions

    Snow Forecast ❄️

  • With an average of 2 snowy days, Tromsø usually enjoys a light touch of snow in September.
    According to Tromsø snow forecast for September 2025, 6 snowy days are expected until the end of the month. The closest date with snow is Tuesday, 23 September.

    • Temperatures

  • So far, September 2025 in Tromsø shows a warmer trend than usual by 3.6 °C.

  • The forecast for the next days in Tromsø predicts a temperature of 5.6 °C, which is cooler than the historical average.

  • In general, the average temperature in Tromsø at the beginning of September is 12 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 2.7 °C by the end of September.

    • Rain 🌧️

  • Tromsø 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

Tromsø 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
9°
16
Moderate rain
12°
17
Patchy rain possible
12°
18
Patchy rain possible
8°
19
Partly cloudy
10°
20
Patchy rain possible
7°
21
Patchy rain possible
8°
22
Patchy rain possible
6°
23
Patchy rain possible
5°
24
Moderate rain
2°
25
Moderate snow
2°
26
Moderate or heavy snow showers
2°
27
Moderate rain
2°
28
Patchy rain possible
3°
29
Moderate or heavy snow showers
-0°
30
Partly cloudy
8°

Temperatures trend during September in Tromsø

See the weather trend as well as the moving average line

September weather in Tromsø 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
 9° /3° 0.5 mm 0 cm
16 Sept. Moderate rain
Moderate rain
 12° /10° 6 mm 0 cm
17 Sept. Patchy rain possible
Patchy rain possible
 12° /7° 3.6 mm 0 cm
18 Sept. Patchy rain possible
Patchy rain possible
 8° /4° 2.8 mm 0 cm
19 Sept. Partly cloudy
Partly cloudy
 10° /4° 0 mm 0 cm
20 Sept. Patchy rain possible
Patchy rain possible
 7° /5° 3.2 mm 0 cm
21 Sept. Patchy rain possible
Patchy rain possible
 8° /5° 1.2 mm 0 cm
22 Sept. Patchy rain possible
Patchy rain possible
 6° /4° 2.3 mm 0 cm
23 Sept. Patchy rain possible
Patchy rain possible
 5° /2° 1.3 mm 0.5 cm
24 Sept. Moderate rain
Moderate rain
 2° /0° 8.6 mm 6.2 cm
25 Sept. Moderate snow
Moderate snow
 2° /-2° 1.2 mm 0.9 cm
26 Sept. Moderate or heavy snow showers
Moderate or heavy snow showers
 2° /-3° 3.9 mm 1.4 cm
27 Sept. Moderate rain
Moderate rain
 2° /1° 7.1 mm 0 cm
28 Sept. Patchy rain possible
Patchy rain possible
 3° /1° 3.7 mm 1.1 cm
29 Sept. Moderate or heavy snow showers
Moderate or heavy snow showers
 0° /-4° 2.3 mm 1.7 cm
30 Sept. Partly cloudy
Partly cloudy
 8° /3° 2.4 mm 0.3 cm
Next
Important Notice
Our weather forecast for Tromsø 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 Tromsø forecast closer to your planned date for the most up-to-date weather information.
Change Month
‹
›

Tromsø in September - FAQ

What are the expected maximum and minimum temperatures in Tromsø 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 Tromsø during September?
Significant rainfall exceeding 127.9 mm is expected in Tromsø during September, occurring over more than 25 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Tromsø in September 2025?
Tromsø experiences an average snowfall of 3.1925 cm during September, occurring over 2 days.
What are the typical wind conditions in Tromsø during September?
The average wind speed in Tromsø during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.

Tromsø snow forecast September 2025

Track daily snowfall levels and discover Tromsø’s snowy potential this September ❄️

September rainfall patterns in Tromsø

Explore the daily rainfall trends and prepare for Tromsøs September weather 💧

Quick links

More Tromsø weather pages
You are here
Location coordinates Where is Tromsø?

Get accurate weather forecasts for Tromsø, located at latitude 69.649 and longitude 18.955. Stay updated with localized weather information tailored for Tromsø.

Related locations
Select a location for accurate weather forecast
Piesendorf
More Locations
Found a mistake?
We appreciate your attention to details. Tell us here.