Cool
Average highs are around 9°C, so pack for cooler days.
September verdict
Poor for holiday weather
Average highs are around 9°C, so pack for cooler days. Sunshine averages 3.3h per day, so this is not one of the brighter months. Rainfall averages 131mm, so some wet days are possible.
Monthly averages
Temp
9°C
Rain
131mm
Sun
3.3h
Sea
8°C
Weather score
16
Poor
Cool
Average highs are around 9°C, so pack for cooler days.
Showers
Rainfall averages 131mm, so some wet days are possible.
Limited sun
Sunshine averages 3.3h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 8°C, so the water can feel cool.
Map
Compare Norway with nearby places by weather score, rain, sun, temperature, and swim conditions.
September9°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.
September131mm average rain
September is one of Norway's wettest months, so rain is likely to be a major planning factor.
Driest monthsFebruary to July
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
September3.3 hours average sun
September sits close to Norway'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.
September8°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 9°C in this stretch, so swimming comfort is at its strongest.
September16 weather score
September scores below Norway'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.