Cool
Average highs are around 10°C, so pack for cooler days.
September verdict
Harstad, 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 102mm, so some wet days are possible.
September weather
Monthly averages
Temp
10°C
Rain
102mm
Sun
3h
Sea
11°C
Weather score
15
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 102mm, 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 11°C, so the water can feel cool.
Map
Weather map
Compare Harstad, Norway with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September10°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to August
This stretch sets the upper range for average daytime heat.
Rain
September102mm average rain
September sits near Harstad's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
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 Harstad'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
September11°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 11°C in this stretch, so swimming comfort is at its strongest.
Weather score
September15 weather score
September scores below Harstad's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsMay to August
These months have the strongest weather score in the monthly averages.
