Cool
Average highs are around 10°C, so pack for cooler days.
September verdict
Tromso, Norway in September
Weather score15Poor
Poor for holiday weather
Average highs are around 10°C, so pack for cooler days. Sunshine averages 3h per day, so this is not one of the brighter months. Rainfall averages 97mm, so some wet days are possible.
September weather
Monthly averages
Temp
10°C
Rain
97mm
Sun
3h
Sea
10°C
Weather score
15
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 97mm, so some wet days are possible.
Limited sun
Sunshine averages 3h per day, so this is not one of the brighter months.
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
September10°C average high
September 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
September97mm average rain
September is wetter than Tromso's yearly average, so flexible plans matter more.
Driest monthsMarch to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September3 hours average sun
September sits close to Tromso's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to July
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September10°C average sea
September 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
September15 weather score
September scores below Tromso's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsApril to August
These months have the strongest weather score in the monthly averages.
