Finland climate by month
8-year averages · when to visit| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Helsinki | 0° | -1° | 2° | 8° | 14° | 19° | 21° | 20° | 16° | 10° | 5° | 1° |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Helsinki | 16 | 11 | 11 | 10 | 9 | 10 | 12 | 13 | 12 | 14 | 13 | 15 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Helsinki | 0° | 0° | 1° | 4° | 10° | 16° | 19° | 20° | 17° | 11° | 7° | 4° |
Figures are averaged over 8 years of ERA5 reanalysis; sea temps come from ocean reanalysis, and UV is derived from solar elevation.
Helsinki climate in May
8-year averages · when to visitBest months: June–August · May: Acceptable
| April | May | June | |
|---|---|---|---|
| Average temperature | ▲ 4°C | 10°C | ▲ 16°C |
| Typical high | ▲ 8°C | 14°C | ▲ 19°C |
| Typical low | ▲ 0°C | 6°C | ▲ 12°C |
| Water temperature | ▲ 4.2°C | 10.0°C | ▲ 16.2°C |
| Precipitation | ▲ 45 mm | 50 mm | ▲ 53 mm |
| Wet days | ▼ 10 d | 9 d | ▲ 10 d |
| Humidity | ▼ 78% | 68% | ▲ 73% |
| Sunshine per day | ▲ 10.0 h | 12.8 h | ▲ 14.8 h |
| Cloud cover | ▼ 32% | 26% | ▼ 21% |
| Midday UV | ▲ 5 | 7 | ▲ 8 |
| Daylight | 14:38 | 17:15 | 18:47 |
| Our take | Acceptable | Acceptable | Good |
May temperatures day by day daily mean + smoothed trend · °C
May precipitation day by day mm
May UV day by day clear-sky midday value
Figures are averaged over 8 years of ERA5 reanalysis; sea temps come from ocean reanalysis, and UV is derived from solar elevation.
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NBM + global weather models
Updated: 3:42 PM
Finland · 9 weather points · Climate reference: Helsinki (60.17°N, 24.94°E) · Europe/Helsinki