Cool
Average highs are around 12°C, so pack for cooler days.
May verdict
Trondheim, Norway in May
Weather score29Poor
Poor for holiday weather
Average highs are around 12°C, so pack for cooler days. Sunshine averages 6.7h per day, enough for a balanced month. Rainfall averages 53mm, which is relatively low for holiday planning.
May weather
Monthly averages
Temp
12°C
Rain
53mm
Sun
6.7h
Sea
8°C
Weather score
29
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 53mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6.7h per day, enough for a balanced month.
Cool sea
Sea temperatures average 8°C, so the water can feel cool.
Map
Weather map
Compare Trondheim, Norway with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
May12°C average high
May 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
May53mm average rain
May is one of Trondheim's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsFebruary to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
May6.7 hours average sun
May is one of Trondheim's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
May8°C average sea
May is below Trondheim's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to September
Sea temperatures are usually near 13°C in this stretch, so swimming comfort is at its strongest.
Weather score
May29 weather score
May is one of Trondheim's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsMay to August
These months have the strongest weather score in the monthly averages.