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Weather in Hammerfest for September 2025

Your guide to Hammerfest weather in September - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Hammerfest during September is quite rare, with fewer than 2 snowy days on average.
    According to Hammerfest snow forecast for September 2025, no snow is expected until the end of the month.

    • Temperatures

  • So far, September 2025 in Hammerfest is slightly warmer than the historical average by 1.1 °C.

  • The forecast for the next days in Hammerfest predicts a temperature of 9.6 °C, which is cooler than the historical average.

  • In general, the average temperature in Hammerfest at the beginning of September is 13.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 9.7 °C by the end of September.

    • Rain 🌧️

  • Hammerfest experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 100.7 mm.

Average dry days
7
Dry days
Average rainy days
22
Rainy days
Average snowy days
1
Snow days
Average temperatures
10°/7°
Temperatures
Average wind speed
35 km/h
Avg max wind
Average humidity
78 %
Avg humidity

Hammerfest Weather September

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

Temperatures trend during September in Hammerfest

See the weather trend as well as the moving average line

September weather in Hammerfest day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Overcast
Overcast
 12° /9° 0.8 mm 3
2 Sept. Light rain shower
Light rain shower
 14° /9° 4 mm 4
3 Sept. Overcast
Overcast
 16° /10° 0.1 mm 4
4 Sept. Overcast
Overcast
 15° /10° 5.1 mm 4
5 Sept. Light rain shower
Light rain shower
 12° /9° 7.6 mm 3
6 Sept. Light rain shower
Light rain shower
 12° /8° 3.4 mm 3
7 Sept. Light rain shower
Light rain shower
 12° /8° 2.5 mm 4
8 Sept. Light rain
Light rain
 15° /9° 0.8 mm 4
9 Sept. Light rain shower
Light rain shower
 16° /11° 1 mm 4
10 Sept. Moderate rain
Moderate rain
 16° /11° 3.8 mm 4
11 Sept. Light drizzle
Light drizzle
 14° /10° 1.4 mm 4
12 Sept. Overcast
Overcast
 14° /10° 0 mm 4
13 Sept. Overcast
Overcast
 12° /8° 0.5 mm 3
14 Sept. Patchy rain possible
Patchy rain possible
 11° /8° 0.1 mm 3
15 Sept. Partly cloudy
Partly cloudy
 11° /7° 0 mm 4
16 Sept. Patchy rain possible
Patchy rain possible
 13° /11° 4.9 mm 0.1
17 Sept. Patchy rain possible
Patchy rain possible
 12° /11° 2.5 mm 0.1
18 Sept. Patchy rain possible
Patchy rain possible
 9° /9° 2.9 mm 0.1
19 Sept. Patchy rain possible
Patchy rain possible
 9° /8° 0.9 mm 0.1
20 Sept. Patchy rain possible
Patchy rain possible
 10° /8° 1 mm 0.2
21 Sept. Patchy rain possible
Patchy rain possible
 8° /7° 3.1 mm 2
22 Sept. Patchy rain possible
Patchy rain possible
 5° /5° 0.9 mm 2
23 Sept. Patchy rain possible
Patchy rain possible
 7° /5° 1.6 mm 2
24 Sept. Patchy rain possible
Patchy rain possible
 8° /5° 2.7 mm 2
25 Sept. Patchy rain possible
Patchy rain possible
 10° /9° 2.3 mm 2
26 Sept. Patchy rain possible
Patchy rain possible
 12° /10° 0.2 mm 3
27 Sept. Patchy rain possible
Patchy rain possible
 12° /10° 0.1 mm 3
28 Sept. Patchy rain possible
Patchy rain possible
 10° /8° 0.7 mm 2
29 Sept. Moderate rain
Moderate rain
 9° /5° 8.5 mm 2
30 Sept. Light drizzle
Light drizzle
 7° /5° 3.4 mm 2
Next
Important Notice
Our weather forecast for Hammerfest 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 Hammerfest forecast closer to your planned date for the most up-to-date weather information.
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Hammerfest in September - FAQ

What are the expected maximum and minimum temperatures in Hammerfest during September?
During September, expect a variety of temperatures with highs around 10° and lows near 7°, suitable for diverse activities and preferences.
How much rainfall should be expected in Hammerfest during September?
Significant rainfall exceeding 100.7 mm is expected in Hammerfest during September, occurring over more than 22 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Hammerfest in September 2025?
Hammerfest typically sees 0.165 cm of snowfall during September.
What are the typical wind conditions in Hammerfest during September?
The average wind speed in Hammerfest during September is 35 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Hammerfest

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

Quick links

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Location coordinates Where is Hammerfest?

Get accurate weather forecasts for Hammerfest, located at latitude 70.663 and longitude 23.681. Stay updated with localized weather information tailored for Hammerfest.

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