Cool
Average highs are around 5°C, so pack for cooler days.
Weather Guide
Tromso, Norway Average Monthly Weather
Weather score20Poor annual avg
Best months: June, May, July
Across the year, average daytime temperatures are around 6°C, sunshine averages 3.4h per day, and rainfall totals about 959mm. Sea temperatures average 7°C across the year.
Annual weather
Annual averages
Temp
6°C
Rain
959mm
Annual total
Sun
3.4h
Sea
7°C
Weather score
20
Poor avg
Seasonal climate calendar
Trip feel
Showers
Rainfall averages 124mm, so some wet days are possible.
Limited sun
Sunshine averages 1.5h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 9°C, so the water can feel cool.
Map
Weather map
Compare Tromso, Norway with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
October5°C average high
October is close to Tromso's yearly temperature average, giving a typical read on daytime heat.
Warmest monthsJune to August
This stretch sets the upper range for average daytime heat.
Rain
October124mm average rain
October is one of Tromso's wettest months, so rain is likely to be a major planning factor.
Driest monthsMarch to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
October1.5 hours average sun
October is below Tromso's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsMay to July
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
October9°C average sea
October is close to Tromso's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJuly to September
Sea temperatures are usually near 10°C in this stretch, so swimming comfort is at its strongest.
Weather score
October12 weather score
October is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsApril to August
These months have the strongest weather score in the monthly averages.
