When to go · Helsinki
Helsinki, month by month
The best months for Helsinki: May, Jun, Jul, Aug. Months to avoid: Nov.
Month by month
- JanuaryMixedDark, about −5 to −10°C (23 to 14°F), icy paths; saunas and museums shine.Dark, about 23 to 14°F (−5 to −10°C), icy paths; saunas and museums shine.-3 °C (27 °F) / -8 °C (18 °F), 15 rain days27 °F (-3 °C) / 18 °F (-8 °C), 15 rain daysCrowds: Medium · 1 festival or holiday
- FebruaryMixedCold and snowy; daylight returns quickly.-3 °C (27 °F) / -9 °C (16 °F), 12 rain days27 °F (-3 °C) / 16 °F (-9 °C), 12 rain daysCrowds: Medium
- MarchMixedSlush and wind; days lengthen fast.1 °C (34 °F) / -5 °C (23 °F), 11 rain days34 °F (1 °C) / 23 °F (-5 °C), 11 rain daysCrowds: Medium
- AprilMixedCool and changeable; terraces not yet open.8 °C (46 °F) / 1 °C (34 °F), 9 rain days46 °F (8 °C) / 34 °F (1 °C), 9 rain daysCrowds: Low · 1 festival or holiday
- MayGreatBright and fresh; ferries and terraces start.14 °C (57 °F) / 6 °C (43 °F), 9 rain days57 °F (14 °C) / 43 °F (6 °C), 9 rain daysCrowds: Low · 1 festival or holiday
- JuneGreatVery long evenings; Midsummer weekend empties the city.19 °C (66 °F) / 11 °C (52 °F), 10 rain days66 °F (19 °C) / 52 °F (11 °C), 10 rain daysCrowds: Medium · 3 festivals or holidays
- JulyGreatWarmest month; some restaurants shut for summer break.22 °C (72 °F) / 14 °C (57 °F), 11 rain days72 °F (22 °C) / 57 °F (14 °C), 11 rain daysCrowds: High · 1 festival or holiday
- AugustGreatWarm, first dark evenings, busy sea.20 °C (68 °F) / 13 °C (55 °F), 12 rain days68 °F (20 °C) / 55 °F (13 °C), 12 rain daysCrowds: Medium · 1 festival or holiday
- SeptemberGoodCool, clear, quieter; autumn colours.15 °C (59 °F) / 9 °C (48 °F), 13 rain days59 °F (15 °C) / 48 °F (9 °C), 13 rain daysCrowds: Medium · 1 festival or holiday
- OctoberMixedWet and dark early.9 °C (48 °F) / 4 °C (39 °F), 15 rain days48 °F (9 °C) / 39 °F (4 °C), 15 rain daysCrowds: Low · 1 festival or holiday
- NovemberAvoidDark, cold, damp; short daylight.4 °C (39 °F) / 0 °C (32 °F), 16 rain days39 °F (4 °C) / 32 °F (0 °C), 16 rain daysCrowds: Low
- DecemberMixedChristmas markets; about six hours of daylight; check Christmas Eve closures.0 °C (32 °F) / -4 °C (25 °F), 16 rain days32 °F (0 °C) / 25 °F (-4 °C), 16 rain daysCrowds: High · 4 festivals or holidays
Compare two months
Weather, crowds and prices for any two months in Helsinki, side by side.
Verdict
May: Great
Jun: Great
Daytime high
May: 14 °C (57 °F)57 °F (14 °C)
Jun: 19 °C (66 °F)66 °F (19 °C)
Night low
May: 6 °C (43 °F)43 °F (6 °C)
Jun: 11 °C (52 °F)52 °F (11 °C)
Rain days
May: 9 (better)
Jun: 10
Crowds
May: Low
Jun: Medium
Prices
May: Medium
Jun: Medium
Festivals listed
May: 1
Jun: 3
May: Bright and fresh; ferries and terraces start.
June: Very long evenings; Midsummer weekend empties the city.
Helsinki: figures are long-term averages from this guide, not a forecast.
All twelve months in one grid — weather, crowds and prices, with gaps left as unknown.