Climate guide for Helsinki, Finland

Helsinki in September

Weather, crowds & best time to visit

How to read the score (0–10)
05810
UnfavorableGoodOptimal

September · Finland

Best time to visit Helsinki in SeptemberWeather, crowds & prices

September score

8.1/10

Ranked #5 of 12 months

Full year for Helsinki
Avg temp
14°C
Rainfall
76 mm
Humidity
81%
Sunny days
25
Crowd Density
Moderate Crowds
Average Expenses
$$ · Moderate Cost ($$)

September in Helsinki scores 8.1/10 for sightseeing and cultural travel - an above-average month (#5 of 12). Expect around 14°C, 76 mm of rain, and roughly 25 sunny days this month.

Harbour esplanades and design-district saunas - best timed for May-September.

View all 12 months

Ranked by pure climate comfort

Score scale: 0.0 → 10.0Quiet / UncrowdedModerate CrowdsPeak Tourist Rush

Frequently asked

What is the weather like in Helsinki in September?
In September, Helsinki averages 14°C, 76 mm of rain, and about 25 sunny days. Its climate-comfort score is 8.1/10.
Is September a good time to visit Helsinki?
September earns a 8.1/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
How much does it rain in Helsinki in September?
Expect about 76 mm of rain in September. Average humidity is 81% and there are about 25 sunny days.

Curated in Helsinki

Tickets & experiences

Things to do in Helsinki

Helsinki, Finland. Live activities and tours from GetYourGuide, matched to this destination.