Cool
Average highs are around 15°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
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 66mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 7h per day, enough for a balanced month.
Cool sea
Sea temperatures average 10°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
July15°C average high
July is one of Tromso's hottest months, so shade and slower afternoons matter.
Warmest monthsJune to August
This stretch sets the upper range for average daytime heat.
Rain
July66mm average rain
July sits on the drier side of Tromso's year, which helps with sightseeing and transfers.
Driest monthsMarch to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July7 hours average sun
July is one of Tromso's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsMay to July
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
July10°C average sea
July sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJuly to September
Sea temperatures are usually near 10°C in this stretch, so swimming comfort is at its strongest.
Weather score
July28 weather score
July scores above Tromso's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsApril to August
These months have the strongest weather score in the monthly averages.
