Cool
Average highs are around 12°C, so pack for cooler days.
May verdict
Hanko, Finland in May
Weather score36Poor
Poor for holiday weather
Average highs are around 12°C, so pack for cooler days. Sunshine averages 7.8h per day, enough for a balanced month. Rainfall averages 31mm, which is relatively low for holiday planning.
May weather
Monthly averages
Temp
12°C
Rain
31mm
Sun
7.8h
Sea
7°C
Weather score
36
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 31mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 7.8h per day, enough for a balanced month.
Cool sea
Sea temperatures average 7°C, so the water can feel cool.
Map
Weather map
Compare Hanko, Finland with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
May12°C average high
May is close to Hanko'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
May31mm average rain
May sits on the drier side of Hanko's year, which helps with sightseeing and transfers.
Driest monthsJanuary to June and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
May7.8 hours average sun
May is brighter than Hanko's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to July
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
May7°C average sea
May is below Hanko's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to September
Sea temperatures are usually near 16°C in this stretch, so swimming comfort is at its strongest.
Weather score
May36 weather score
May sits close to Hanko'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.
