Cool
Average highs are around 15°C, so pack for cooler days.
May verdict
Poor for holiday weather
Average highs are around 15°C, so pack for cooler days. Sunshine averages 7.2h per day, enough for a balanced month. Rainfall averages 53mm, which is relatively low for holiday planning.
Monthly averages
Temp
15°C
Rain
53mm
Sun
7.2h
Sea
11°C
Weather score
32
Poor
Cool
Average highs are around 15°C, so pack for cooler days.
Drier
Rainfall averages 53mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 7.2h per day, enough for a balanced month.
Cool sea
Sea temperatures average 11°C, so the water can feel cool.
Map
Compare Uddevalla, Sweden with nearby places by weather score, rain, sun, temperature, and swim conditions.
May15°C average high
May sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMay to August
This stretch sets the upper range for average daytime heat.
May53mm average rain
May sits on the drier side of Uddevalla's year, which helps with sightseeing and transfers.
Driest monthsJanuary to July and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
May7.2 hours average sun
May is brighter than Uddevalla's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
May11°C average sea
May is close to Uddevalla's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJune to September
Sea temperatures are usually near 15°C in this stretch, so swimming comfort is at its strongest.
May32 weather score
May sits close to Uddevalla's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.