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Tromso in October: Weather, Average temperature and Climate

Discover the weather for Tromso in October and if it’s a good time to travel (based on historical data).
Check flight prices to Tromso on Avionero:
October

Weather in Tromso in October 2025

OK Weather
Chill
🌧️
Rainy
🌊
Cold water
October could be a good time to visit Tromso, as the weather is generally fine. The average high temperature is around +43°F, and there are typically 2 sunny days in October. However, expect about 15 rainy days, and total monthly rainfall of approximately 124 mm. The weather is changeable so pack for every eventuality. Search flights in one click on Avionero.
Good to know:
  • October is usually the wettest month of the year in Tromso;

Average weather

☀️
+43°F
Avg. max. temperature
-6°F
Min.
+63°F
Max.
124 mm
Total precipitation
81%
Avg. humidity
3 m/s
Avg. wind
2 ☀️
Sunny Days
7 ⛅️
Cloudy
15 🌦
Rainy
Our opinion: Tromso has OK weather in October.

Average temperature in Tromso in October

Here are the expected maximum, average and minimum temperatures in Tromso for October based on the historical data.
Last Year
Historical Data

The expected average maximum temperature in October is +39°F with a maximum of +50°F and a minimum of +27°F.

The average maximum temperature goes down 54% by the end of the month, compared with the beginning of the month, from +50°F to +37°F.

Is Tromso warm or cold in October?

Tromso is typically chill in October.

Maximum temperatures go down compared to the previous month from +54°F to +43°F. The minimum temperature also goes down from +43°F to +34°F.

Pack a jumper and a jacket as there will be cooler temperatures.

Take a look at how October is compared to other months in Tromso:

Water temperature in Tromso in October

Water in Tromso in October is Cold. It varies from +45°F to +49°F, with an average of +47°F. Note that the air temperature is lower than the water temperature, averaging around +43°F.

In October, water temperatures are average relative to the rest of the year:

The warmest water temperatures in Tromso are reached in August, when the average sea temperature rises to +52°F. The coldest water temperatures are in March, with an average of +40°F.

Can you swim in Tromso in October?

We would not recommend swimming in Tromso in October, the water is very cold (+47°F on average). Consider swimming only if you are an experienced cold-water swimmer with proper gear.
🦭
Cold
Below +61°F
🏄‍♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
You will need a full-body wetsuit, cap, gloves, a warm change of clothes, and a hot drink ready for after your swim.

Climate in Tromso in October

Tromso weather looks like this, on average, in October and the surrounding months.
SeptemberOctoberNovember
Avg. temperature
+54°F+43°F+34°F
Min. temperature
+23°F-6°F-11°F
Max. temperature
+70°F+63°F+54°F
Rainfall
128 mm124 mm68 mm
Wind
2 m/s3 m/s3 m/s
Avg. water temperature
+50°F+47°F+46°F
Humidity
81%81%80%
Air pressure
1008 HPa1006 HPa1004 HPa
Sunny days
223
Cloudy days
678
Rainy days
21157
Snowy days
0712

October weather is still as ok as in September. It’s getting colder in October. From +54°F in the day, the average maximum temperature lowers to +43°F. As October arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 128 mm to 124 mm. Humidity levels don’t change as the month goes on, averaging around 81%. Winds are stronger in comparison to September, going up from 2 m/s to 3 m/s on average. The amount of sunny days stay about the same, averaging 2 sunny days during the month.

November brings much the same weather, it remains ok.

Wind

Wind speed in Tromso in October based on historical data.
Last Year
Historical Data

The average wind speed is 3 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Tromso is gradually decreasing during October, going from 3 m/s to 2 m/s over the course of the month.

Rain

Amount of rainfall in mm during October in Tromso based on historical data.
Last Year
Historical Data
Total precipitation in October is about 65 mm, with a 58% chance of rain on a typical day. The maximum amount of rainfall per day is around 10 mm, which is considered light rain. October is a pretty wet month with over 18 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
October is one of the rainiest months in Tromso, here is a comparison with other months, total mm:
Tromso wettest month is September, where a typical day has a 70% chance of precipitation and 128 mm of rainfall per day. February, on the other hand, is the driest month with a mere 7% chance of precipitation and 47 mm of rainfall per day.

Snow

Amount of snow in mm during October in Tromso based on historical data.
Last Year
Historical Data
The total snow in October is about 8 mm, with a 6% chance of snow on a typical day.

Here’s how October is compared with other months in the amount of snow, total mm:

How was the weather last October in Tromso?

This is the weather in Tromso in October 2023:
1 October
🌧️
+50°F
2 October
☁️
+42°F
3 October
☁️
+44°F
4 October
🌧️
+42°F
5 October
🌨️
+40°F
6 October
🌧️
+40°F
7 October
🌧️
+39°F
8 October
🌧️
+42°F
9 October
☁️
+40°F
10 October
☀️
+39°F
11 October
🌧️
+39°F
12 October
☁️
+41°F
13 October
🌧️
+42°F
14 October
☀️
+39°F
15 October
🌧️
+42°F
16 October
☁️
+45°F
17 October
☀️
+41°F
18 October
☁️
+38°F
19 October
☁️
+37°F
20 October
🌧️
+44°F
21 October
🌧️
+46°F
22 October
☀️
+40°F
23 October
☀️
+37°F
24 October
☀️
+31°F
25 October
☁️
+36°F
26 October
🌧️
+38°F
27 October
☀️
+39°F
28 October
☁️
+35°F
29 October
☁️
+32°F
30 October
🌨️
+33°F
31 October
☁️
+37°F
In October 2023 Tromso had 7 sunny days, 11 cloudy days, and 11 rainy days. The average maximum temperature was +39°F, with an absolute maximum of +50°F and a minimum of +30°F. The average humidity was 85%, with a maximum of 100% and a minimum of 65%. The average wind speed was 3 m/s, with a maximum of 11 m/s and a minimum of 0 m/s.
Are you planning a trip in October?

Climate Change Over the Years

This is how Tromso climate has changed over the last 43 years.

The climate in Tromso in October has not changed that much over the last 43 years.

The average temperature was the lowest in 1981 (+39°F) and the highest in 1990 (+46°F). The driest year was 1980 with only 614 mm of rainfall, and the wettest year was 1989 with 1352 mm.

FAQ

Frequently asked questions about the weather in Tromso in October:

Is October a good time to visit Tromso?

It’s always a good time to visit Tromso, but the weather is changeable in October, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Tromso in October?

Not really, October is not the best time to sunbathe, unless you visit a local solarium.

Can you swim in Tromso in October?

Swimming in Tromso in October is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.

Is Tromso rainy in October?

Tromso is often rainy in October. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Tromso in October?

Usually, it’s not very sunny in Tromso in October, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Norway

Check out the weather for other cities in Norway.

Monthly weather in Tromso

Source of the data

For this page, we’ve looked at the typical weather in Tromso, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.