Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Port Jefferson is from May, June, August. — consistent weather climate
🌦Humid
| Score | 11 | 14 | 20 | 45 | 79 | 84 | 72 | 75 | 75 | 73 | 44 | 11 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Cold | Cold | Cold | Cold | Mild | Humid | Humid | Humid | Humid | Cool & rainy | Cold | Cold |
| Temperature | -1–5°C | -1–6°C | 2–10°C | 6–14°C | 11–20°C | 17–25°C | 21–28°C | 21–27°C | 17–23°C | 12–19°C | 7–13°C | 2–8°C |
| Feels like | -6–1°C | -6–2°C | -2–7°C | 3–12°C | 9–19°C | 17–27°C | 23–32°C | 22–30°C | 17–24°C | 10–17°C | 3–10°C | -3–4°C |
| Precipitation | 108mm 11 days | 87mm 11 days | 121mm 10 days | 107mm 10 days | 96mm 9 days | 81mm 7 days | 111mm 12 days | 120mm 11 days | 128mm 10 days | 116mm 9 days | 79mm 6 days | 128mm 10 days |
| Sunshine | 6.0h ☀︎ 62% | 6.7h ☀︎ 63% | 8.4h ☀︎ 71% | 9.0h ☀︎ 68% | 10.9h ☀︎ 75% | 12.0h ☀︎ 79% | 11.6h ☀︎ 79% | 11.0h ☀︎ 80% | 9.2h ☀︎ 74% | 8.3h ☀︎ 75% | 7.4h ☀︎ 75% | 5.9h ☀︎ 64% |
| Wind | NW · 25 km/h | W · 25 km/h | NW · 26 km/h | W · 25 km/h | SW · 22 km/h | SW · 20 km/h | SW · 19 km/h | SW · 19 km/h | N · 20 km/h | NW · 21 km/h | W · 24 km/h | W · 24 km/h |
| Humidity (%) | 71% | 71% | 68% | 70% | 73% | 75% | 79% | 77% | 75% | 75% | 69% | 73% |
| Day length | 9.6h | 10.7h | 12.0h | 13.3h | 14.5h | 15.1h | 14.8h | 13.8h | 12.5h | 11.1h | 9.9h | 9.3h |