Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Portsmouth is from June, July, August. — consistent weather climate
🌥Mild
| Score | 12 | 15 | 23 | 44 | 65 | 82 | 81 | 80 | 77 | 49 | 24 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Cold | Cold | Cold | Cold | Mild | Mild | Pleasant | Pleasant | Mild | Mild | Cold | Cold |
| Temperature | 3–8°C | 4–9°C | 5–10°C | 6–13°C | 9–16°C | 12–19°C | 15–21°C | 15–21°C | 13–19°C | 10–15°C | 7–12°C | 6–10°C |
| Feels like | -1–4°C | 0–5°C | 1–7°C | 2–10°C | 7–14°C | 11–18°C | 13–20°C | 13–20°C | 11–17°C | 8–13°C | 3–8°C | 2–6°C |
| Precipitation | 78mm 11 days | 71mm 11 days | 71mm 13 days | 43mm 9 days | 55mm 10 days | 55mm 10 days | 59mm 11 days | 71mm 12 days | 71mm 10 days | 99mm 13 days | 86mm 13 days | 91mm 13 days |
| Sunshine | 4.0h ☀︎ 47% | 4.8h ☀︎ 48% | 6.2h ☀︎ 52% | 10.1h ☀︎ 73% | 11.0h ☀︎ 71% | 12.0h ☀︎ 73% | 12.0h ☀︎ 75% | 10.5h ☀︎ 73% | 8.8h ☀︎ 70% | 6.0h ☀︎ 56% | 4.2h ☀︎ 47% | 3.0h ☀︎ 37% |
| Wind | W · 27 km/h | SW · 28 km/h | SW · 27 km/h | E · 23 km/h | SW · 22 km/h | SW · 22 km/h | SW · 23 km/h | SW · 23 km/h | W · 23 km/h | SW · 25 km/h | W · 27 km/h | SW · 28 km/h |
| Humidity (%) | 85% | 83% | 81% | 76% | 76% | 76% | 75% | 78% | 79% | 82% | 84% | 86% |
| Day length | 8.5h | 10.0h | 11.9h | 13.9h | 15.5h | 16.4h | 16.0h | 14.5h | 12.6h | 10.7h | 9.0h | 8.0h |