Late spring · Weather & things to do
Helsinki in May
Helsinki warms up: highs climb to 52°F (11°C), from 41°F in April, with lows of 43°F (6°C) and about 1.9 in (48 mm) of rain.
Our comfort score puts it mid-table at 67/100, 5th of 12.
- Avg high
- 52°F (11°C)
- Avg low
- 43°F (6°C)
- Rain
- 1.9 in (48 mm)
- Humidity
- 81%
- Cloud cover
- 62%
- Daylight
- ~16 h 51 min
- Comfort score
- 67/100 · Good
What May feels like
Cool days top out near 52°F (11°C), better for brisk walks than lingering outside.
Nights cool to an average low of 43°F (6°C).
Rain is moderate at about 1.9 in (48 mm) for the month.
Long days help: there are roughly 16 h 51 min of daylight mid-month.
Plan around May
May sits mid-table; the best months are July & August.
- The year's biggest warm-up: highs jump 6°C (10°F) from April.
- Comfort improves from 49/100 in April to 67/100.
- Our Rovaniemi, Saariselkä & Helsinki route is planned for Late Nov – Dec, a window set by the holiday season rather than the weather — May falls outside it.
What to pack for May
- Insulated jackethighs only 52°F
- Comfortable walking shoesmost picks involve some walking
What to do in Helsinki in May
With conditions on your side, the picks below favor time outside.
Aleksanterinkatu Christmas Street
Helsinki's main shopping street, hung with Christmas lights every year since 1949.
Why now May scores 67/100 for comfort, good conditions for being outside.
Stockmann
Finland's largest department store, whose animated Christmas window display is unveiled each November.
Old Market Hall
Brick market hall from 1889 on the South Harbour, with stalls for salmon soup, smoked fish and Finnish pastries.
Löyly
Public sauna and restaurant in a timber-clad building on the Hernesaari shore, with steps down into the Baltic.
Uspenski Cathedral
Red-brick Orthodox cathedral on a rocky hill above the harbour, with gilded onion domes.
Nearby in May
- Tallinn in May~51 mi · highs 55°F, 1.9 in rain · 2°C (3°F) warmer by day, about as wet
- Riga in May~225 mi · highs 61°F, 2.0 in rain · 5°C (9°F) warmer by day, about as wet
- Stockholm in May~246 mi · highs 59°F, 2.0 in rain · 4°C (7°F) warmer by day, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Helsinki in May: quick answers
Is May a good time to visit Helsinki?
It's middling, scoring 67/100. The best months are July & August, at up to 86. Expect highs of 52°F (11°C) and 1.9 in (48 mm) of rain.
How cold is Helsinki in May?
Average highs are 52°F (11°C) and average lows 43°F (6°C), making it the 5th-warmest month by daytime highs.
Does it rain a lot in Helsinki in May?
Not much: about 1.9 in (48 mm) of rain falls across May on average, the 4th-driest month of the year. The annual total is about 28.1 in (713 mm).
What should I pack for Helsinki in May?
Bring insulated jacket (highs only 52°F) and comfortable walking shoes (most picks involve some walking).
More on Helsinki
Planning Helsinki in May?
Share this May plan with your group, poll everyone on dates and keep the packing list in one place.