Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Boulogne-sur-Mer is from June, July, August, but considering flight prices and crowds, the best months to visit are June, July, September. — predictable climate
🌦Cool & rainy
Contains affiliate links.
Contains affiliate links.
Contains affiliate links.
| Score | 8 | 10 | 25 | 39 | 59 | 81 | 79 | 79 | 78 | 40 | 14 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Cold | Cold | Cold | Cold | Mild | Mild | Mild | Pleasant | Mild | Cool & rainy | Cold | Cold |
| Temperature | 4–8°C | 5–9°C | 5–11°C | 6–13°C | 10–15°C | 13–19°C | 15–20°C | 16–21°C | 14–20°C | 11–16°C | 8–12°C | 5–9°C |
| Feels like | -1–4°C | 0–5°C | 1–7°C | 2–9°C | 7–14°C | 11–18°C | 13–20°C | 15–21°C | 12–19°C | 8–13°C | 4–8°C | 1–5°C |
| Precipitation | 120mm 14 days | 100mm 12 days | 85mm 12 days | 63mm 10 days | 57mm 12 days | 62mm 10 days | 76mm 12 days | 76mm 13 days | 88mm 11 days | 165mm 14 days | 149mm 15 days | 136mm 15 days |
| Sunshine | 3.7h ☀︎ 43% | 4.4h ☀︎ 44% | 7.1h ☀︎ 60% | 10.4h ☀︎ 75% | 11.8h ☀︎ 76% | 12.3h ☀︎ 75% | 11.9h ☀︎ 74% | 11.3h ☀︎ 78% | 8.7h ☀︎ 69% | 5.3h ☀︎ 50% | 3.5h ☀︎ 39% | 2.4h ☀︎ 30% |
| Wind | SW · 30 km/h | SW · 34 km/h | S · 28 km/h | NE · 26 km/h | W · 25 km/h | W · 23 km/h | SW · 25 km/h | W · 25 km/h | SW · 24 km/h | SW · 29 km/h | SW · 29 km/h | SW · 31 km/h |
| Humidity (%) | 84% | 82% | 79% | 74% | 78% | 77% | 78% | 78% | 77% | 81% | 82% | 85% |
| Perfect days | 0% | 0% | 1% | 4% | 10% | 20% | 32% | 27% | 19% | 3% | 0% | 0% |
| Dry streak | 7d | 8d | 10d | 11d | 9d | 9d | 8d | 7d | 9d | 7d | 7d | 8d |
| Sunny streak | 4d | 6d | 9d | 18d | 17d | 19d | 19d | 15d | 13d | 8d | 5d | 4d |
| Extreme heat | — | — | — | — | — | — | 1% | — | — | — | — | — |
| Extreme cold | 21% | 19% | 9% | 2% | — | — | — | — | — | — | 2% | 13% |
| Temperature | +0.5° | +2.1° | +1.6° | -0.2° | -0.3° | +0.9° | +0.1° | +1.6° | +1.4° | +0.6° | +1.1° | +1.8° |
| Rainfall | Getting wetter | Getting wetter | Stable | Stable | Stable | Stable | Stable | Stable | Getting wetter | Getting wetter | Getting wetter | Getting wetter |
| Ideal warm days | 0% | 0% | 0% | 0% | 0% | 3% | 5% | 5% | 3% | 0% | 0% | 0% |
| Outdoor comfort | 0% | 0% | 1% | 6% | 13% | 28% | 40% | 35% | 23% | 5% | 0% | 0% |
| Dry week odds | 6% | 12% | 19% | 23% | 13% | 15% | 12% | 8% | 15% | 5% | 6% | 11% |
| Heavy rain | 1% | 2% | 1% | 1% | — | 1% | 1% | 2% | 2% | 2% | 2% | 2% |
| Snow days | 9% | 10% | 6% | 2% | — | — | — | — | — | — | 2% | 7% |
| Day length | 8.5h | 10.1h | 11.9h | 13.9h | 15.5h | 16.4h | 16.0h | 14.5h | 12.6h | 10.7h | 9.0h | 8.0h |
| Tourist Crowds | Low season | Low season | Low season | Shoulder season | High season | Shoulder season | High season | High season | Shoulder season | Shoulder season | Low season | Low season |