Cool
Average highs are around 15°C, so pack for cooler days.
Weather Guide
Best months: July, June, May
Across the year, average daytime temperatures are around 2°C, sunshine averages 3.6h per day, and rainfall totals about 392mm.
Annual averages
Temp
2°C
Rain
392mm
Annual total
Sun
3.6h
Weather score
30
Poor avg
Cool
Average highs are around 15°C, so pack for cooler days.
Drier
Rainfall averages 62mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 5.3h per day, enough for a balanced month.
Map
Compare Hetta, Finland with nearby places by weather score, rain, sun, temperature, and swim conditions.
August15°C average high
August is one of Hetta's hottest months, so shade and slower afternoons matter.
Warmest monthsJune to August
This stretch sets the upper range for average daytime heat.
August62mm average rain
August is wetter than Hetta's yearly average, so flexible plans matter more.
Driest monthsJanuary to June and September to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
August5.3 hours average sun
August sits close to Hetta'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.
August29 weather score
August scores below Hetta's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsApril to July
These months have the strongest weather score in the monthly averages.