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Finnsnes in September 2026: weather, temperatures and activities

Do you want to visit Finnsnes in September 2026? Discover the usual weather at this time of year, average temperatures, the risk of rain, possible activities, and our opinion on whether September is a good month to travel to Finnsnes, Norway.

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Is it worth visiting Finnsnes in September?

Check your ideal travel criteria and see if the month of September suits your plans to go to Finnsnes.
What matters most?
Finnsnes in September 2026: weather, temperatures and activities

Page summary

Finnsnes in September in summary
Adverse weather
Min 7°C Max 10°C 176 mm 11 day(s) 86% 63% 12°C 10.2 h/day 2.3 cm
Possible activities in September
Northern or Southern LightsBeach and swimmingAnimal observationNature and landscapesBoat trip and cruise
Practical guidelines
Moderate crowds 05:03 18:21
Hourly weather

Average weather in Finnsnes in September 2026

Adverse weather

The weather in Finnsnes in September 2026 is based on statistical data from previous years in September. This allows you to forecast the weather in September 2026. Check the hourly statistics (6:00, 9:00, 12:00, 15:00, 18:00, 21:00, 0:00 and 3:00), with the associated average temperature, for the whole month, and also, by navigating the tabs, for the beginning, middle and end of the month.

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Climate

Climate of Finnsnes in September

Temperatures, precipitation, snow and monthly trends help better understand the climate in Finnsnes in September.

Temperatures and rain in Finnsnes in September

Average daily weather

Temperatures, rain and snow day by day in September, with a separate scale for snow.
Minimal Average Maximums Average rainfall Daily snow

Monthly temperatures

The month of September is highlighted to compare it quickly with the rest of the year.
Minimal Average Maximums

Monthly precipitation

The bar for the month under study is highlighted.
Average rainfall

About the climate in Finnsnes in September

Seasonal normals

Seasonal normals of Finnsnes in September

Check the seasonal normals in Finnsnes in September and compare the weather with the previous month and the following month (or the months of your choice by selecting months in the form below): temperatures, wind, rain, humidity, climate rating...

Last updated: 12/01/2026
Reference period for normals: January 2009 - December 2025
Month analyzed
September
Weather data August September October
Outside temperature
Average temperature 11.9°C 8.7°C 3.2°C
Maximum temperature 13.4°C 10.2°C 4.4°C
Minimum temperature 10.4°C 7.1°C 2.0°C
Record maximum temperature 25.0°C
(2018)
20.0°C
(2019)
14.0°C
(2017)
Record low temperature 2.0°C
(2020)
-1.0°C
(2020)
-10.0°C
(2012)
Number of days at +30° 0 day(s)
(0%)
0 day(s)
(0%)
0 day(s)
(0%)
Number of days at +18° 3 day(s)
(10%)
0 day(s)
(0%)
0 day(s)
(0%)
Number of days below 0° 0 day(s)
(0%)
0 day(s)
(0%)
10 day(s)
(32%)
Sea temperature
Sea temperature (average) 12.0°C 10.3°C 8.5°C
Sea temperature (minimum) 10.1°C 8.9°C 7.0°C
Sea temperature (maximum) 13.9°C 12.0°C 9.7°C
Wind
Wind speed 13 km/h 15 km/h 16 km/h
Wind temperature 9.2°C 5.0°C -1.4°C
Precipitation (rain)
Precipitation 145.1 mm 176.3 mm 193.0 mm
Number of days with precipitation 19 day(s)
(61%)
20 day(s)
(67%)
19 day(s)
(61%)
Number of days with significant precipitation (greater than 5 mm) 9 day(s)
(30%)
11 day(s)
(35%)
12 day(s)
(39%)
Record precipitation in one day 39.0 mm
(2015)
46.5 mm
(2014)
101.2 mm
(2013)
Other weather data
Humidity 83% 86% 85%
Visibility 8.9 km 8.8 km 8.3 km
Cloud cover 58% 63% 64%
UV index 3 3 2
Daily sunshine 15h 10h 5h
Sunrise and sunset
Sunrise time 02h55 05h03 06h58
Sunset time 20h47 18h21 16h08
Day length 17h52 13h18 9h10
Our opinion on the climate in September
The review of Where And When fair weather adverse weather very bad weather
Activities and events

What to do in Finnsnes in September?

Possible activities in September
Northern or Southern LightsBeach and swimmingAnimal observationNature and landscapesBoat trip and cruise
Activities not recommended in September
Winter sports and snow
Observed weather

What was the weather like in Finnsnes in September last?

Find the observed weather calendar in Finnsnes in September 2025, with each day’s weather, temperatures and precipitation.

Mon. Tue. Wed. Thu. Fri. Sat. Sun.
1
Patchy rain nearby
12°C16°C0.0 mm
2
Partly Cloudy
13°C18°C0.2 mm
3
Patchy rain nearby
13°C17°C0.1 mm
4
Clear/Sunny
13°C18°C1.0 mm
5
Partly Cloudy
14°C16°C0.1 mm
6
Partly Cloudy
13°C16°C0.3 mm
7
Clear/Sunny
11°C17°C0.0 mm
8
Partly Cloudy
13°C18°C0.0 mm
9
Clear/Sunny
13°C20°C0.0 mm
10
Clear/Sunny
14°C19°C0.0 mm
11
Clear/Sunny
12°C20°C0.0 mm
12
Partly Cloudy
15°C16°C0.0 mm
13
Patchy rain nearby
12°C17°C2.7 mm
14
Patchy rain nearby
11°C14°C1.1 mm
15
Clear/Sunny
9°C15°C0.0 mm
16
Patchy rain nearby
10°C12°C0.0 mm
17
Overcast
11°C13°C1.4 mm
18
Patchy rain nearby
8°C9°C0.9 mm
19
Patchy rain nearby
7°C8°C0.1 mm
20
Patchy rain nearby
6°C9°C0.9 mm
21
Patchy rain nearby
6°C10°C0.0 mm
22
Patchy rain nearby
5°C7°C1.0 mm
23
Light rain shower
5°C6°C3.7 mm
24
Light drizzle
3°C10°C2.0 mm
25
Light rain shower
10°C11°C9.6 mm
26
Light rain shower
10°C11°C5.9 mm
27
Clear/Sunny
8°C14°C0.0 mm
28
Overcast
8°C13°C0.0 mm
29
Clear/Sunny
9°C12°C0.1 mm
30
Patchy rain nearby
7°C11°C0.3 mm
Nearby

Where to go near Finnsnes in September?

Compare cities and destinations near Finnsnes in September to find another travel stop, a nearby alternative or a logical continuation of your stay in Finnsnes.

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Every month

Best time to visit Finnsnes month by month

Compare the weather in Finnsnes across all months of the year and open each detailed page to find the best time.

Frequently asked questions

Travel to to Finnsnes in September: your frequently asked questions

Short answers to the questions we ask ourselves before booking for this month.

Not really. The weather conditions are unfavorable in Finnsnes in September, which places this month 4th out of 12. A trip is still possible, but plan a flexible itinerary.

Expect an average of 10°C during the day and 7°C at night, with about 176 mm of precipitation spread over 11 rainy days.

The sea is only 10°C on average in September. Swimming is still possible, but it will be cool.

Expect about 10.2 hours of sunshine per day on average for this month.

No activity stands out as ideal this month, but conditions remain acceptable for Northern or Southern Lights, Beach and swimming, Animal observation and Nature and landscapes.

Visitor numbers are moderate: this month is in Moderate crowds, with an index of 50/100. It is often a good compromise between weather and tranquility.
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