Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Mariehamn is from June, July, August. — consistent weather climate
🌥Mild
| Score | 9 | 11 | 18 | 26 | 50 | 82 | 81 | 81 | 58 | 21 | 10 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Polar | Polar | Cold | Cold | Cold | Mild | Mild | Mild | Mild | Cold | Cold | Cold |
| Temperature | -2–1°C | -2–1°C | -1–3°C | 1–7°C | 6–12°C | 11–18°C | 14–20°C | 15–19°C | 11–15°C | 7–10°C | 3–6°C | 0–3°C |
| Feels like | -7–-4°C | -7–-4°C | -6–-1°C | -3–3°C | 2–10°C | 9–16°C | 13–19°C | 13–18°C | 9–13°C | 3–6°C | -2–2°C | -5–-2°C |
| Precipitation | 56mm 13 days | 39mm 9 days | 37mm 9 days | 30mm 8 days | 40mm 7 days | 40mm 6 days | 62mm 10 days | 66mm 11 days | 54mm 10 days | 68mm 11 days | 59mm 13 days | 55mm 14 days |
| Sunshine | 1.5h ☀︎ 22% | 3.6h ☀︎ 40% | 6.9h ☀︎ 58% | 10.7h ☀︎ 73% | 13.3h ☀︎ 77% | 14.9h ☀︎ 79% | 14.3h ☀︎ 79% | 12.1h ☀︎ 78% | 8.9h ☀︎ 69% | 4.8h ☀︎ 48% | 2.1h ☀︎ 28% | 1.2h ☀︎ 19% |
| Wind | W · 27 km/h | W · 26 km/h | W · 24 km/h | NW · 22 km/h | SW · 21 km/h | SW · 21 km/h | SW · 20 km/h | SW · 22 km/h | SW · 22 km/h | W · 24 km/h | SW · 24 km/h | W · 26 km/h |
| Humidity (%) | 84% | 83% | 80% | 75% | 72% | 72% | 75% | 79% | 80% | 82% | 85% | 85% |
| Day length | 6.8h | 9.1h | 11.8h | 14.6h | 17.2h | 18.8h | 18.0h | 15.6h | 12.9h | 10.1h | 7.5h | 6.0h |