Cool
Average highs are around 18°C, so pack for cooler days.
August verdict
Southern Ostrobothnia, Finland in August
Weather score33Poor
Poor for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 5.5h per day, enough for a balanced month. Rainfall averages 68mm, which is relatively low for holiday planning.
August weather
Monthly averages
Temp
18°C
Rain
68mm
Sun
5.5h
Sea
16°C
Weather score
33
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 68mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 5.5h per day, enough for a balanced month.
Cool sea
Sea temperatures average 16°C, so the water can feel cool.
Map
Weather map
Compare Southern Ostrobothnia, Finland with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August18°C average high
August is one of Southern Ostrobothnia's hottest months, so shade and slower afternoons matter.
Warmest monthsJune to August
This stretch sets the upper range for average daytime heat.
Rain
August68mm average rain
August is one of Southern Ostrobothnia's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to June and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August5.5 hours average sun
August sits close to Southern Ostrobothnia'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
August16°C average sea
August is one of Southern Ostrobothnia's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 15°C in this stretch, so swimming comfort is at its strongest.
Weather score
August33 weather score
August sits close to Southern Ostrobothnia's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJune to July
These months have the strongest weather score in the monthly averages.
