JE
St. Helier climate and weather
Current conditions
12.6° / 9.0°
Overcast
- Feels like
- 10.8° / 4.2°
- Humidity
- —
- Wind
- 27.4 km/h (gusts 51.8)
- UV index
- 1.3
- Sunrise / sunset
- 07:13 / 16:30
- Daylight
- 9.3 hrs
7-day forecast
| Date | Weather | High | Low | Feels like | Precip | Rain | Wind | UV |
|---|---|---|---|---|---|---|---|---|
| Thu 12 Nov | Overcast | 12.6° | 9.0° | 10.8° / 4.2° | 0.1 mm | 80% | 27.4 km/h | 1.3 |
| Fri 13 Nov | Partly cloudy | 11.3° | 7.4° | 8.0° / 4.3° | 0.0 mm | 0% | 19.9 km/h | 2.1 |
| Sat 14 Nov | Light drizzle | 10.8° | 7.4° | 5.3° / 2.8° | 0.1 mm | 16% | 31.3 km/h | 1.8 |
| Sun 15 Nov | Dense drizzle | 14.2° | 10.1° | 8.1° / 0.8° | 5.0 mm | 70% | 77.7 km/h | 0.7 |
| Mon 16 Nov | Moderate drizzle | 10.7° | 7.8° | 6.0° / 2.8° | 5.4 mm | 64% | 39.2 km/h | 1.4 |
| Tue 17 Nov | Slight rain showers | 12.9° | 7.5° | 7.3° / 0.9° | 9.2 mm | 91% | 51.6 km/h | 1.0 |
| Wed 18 Nov | Thunderstorm | 13.0° | 9.4° | 6.5° / 4.7° | 18.9 mm | 85% | 42.6 km/h | 1.5 |
Air quality
26
Good
US Air Quality Index
European AQI: 26
- PM2.5
- 7.9 µg/m³
- PM10
- 14.9 µg/m³
- Ozone (O₃)
- 58.0 µg/m³
- NO₂
- 4.2 µg/m³
- SO₂
- 0.3 µg/m³
- CO
- 173.0 µg/m³
- UV index
- 0.0
- Dust
- 0.0 µg/m³
Pollen
- Grass
- 0.0
- Birch
- 0.0
- Ragweed
- 0.0
Climate through the year
Now: November
Average high and low, °C Rainfall, mm
Temperature by month
Precipitation and rain days
Sunshine, UV and humidity
Best months to visit
| Month | Rating | Avg high | Avg low | Rain days | Sun (hrs) | Humidity |
|---|---|---|---|---|---|---|
| August | Good · 67 | 20.5°C | 16.3°C | 10.8 | 347.2 | 78.2% |
| July | Good · 65 | 20.1°C | 15.8°C | 14.3 | 378.2 | 79.2% |
| September | Good · 60 | 19.2°C | 15.3°C | 13.4 | 282.0 | 77.8% |
| June | Good · 58 | 18.9°C | 13.9°C | 10.6 | 378.0 | 78.8% |
| October | Fair · 41 | 16.6°C | 13.4°C | 14.3 | 226.3 | 79.5% |
| May | Fair · 39 | 15.6°C | 11.0°C | 12.0 | 372.0 | 79.1% |
| March | Fair · 36 | 11.4°C | 7.4°C | 13.0 | 251.1 | 78.9% |
| April | Fair · 36 | 12.9°C | 8.3°C | 10.4 | 315.0 | 75.4% |
| February | Poor · 23 | 9.9°C | 6.9°C | 12.1 | 151.2 | 80.7% |
| November | Poor · 17 | 13.1°C | 10.3°C | 16.4 | 153.0 | 77.1% |
| December | Poor · 15 | 10.7°C | 8.0°C | 13.5 | 117.8 | 81.0% |
| January | Poor · 9 | 9.0°C | 6.0°C | 16.1 | 136.4 | 79.9% |
Monthly climate data
| Month | High | Low | Mean | Feels high | Feels low | Precip | Rain days | Snow | Sun | Daylight | UV | Humidity | Wind | Clouds |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | 9.0° | 6.0° | 7.6° | 4.8° | 0.8° | 118.4 mm | 16.1 | 1.8 cm | 136.4 hrs | 8.7 hrs | — | 79.9% | 32.9 km/h | 76.2% |
| Feb | 9.9° | 6.9° | 8.4° | 5.8° | 1.9° | 69.1 mm | 12.1 | 1.4 cm | 151.2 hrs | 10.2 hrs | — | 80.7% | 32.0 km/h | 74.8% |
| Mar | 11.4° | 7.4° | 9.3° | 7.8° | 2.7° | 66.0 mm | 13.0 | 0.2 cm | 251.1 hrs | 11.9 hrs | — | 78.9% | 30.3 km/h | 64.7% |
| Apr | 12.9° | 8.3° | 10.5° | 10.1° | 4.0° | 48.4 mm | 10.4 | 0.2 cm | 315.0 hrs | 13.8 hrs | — | 75.4% | 28.9 km/h | 55.7% |
| May | 15.6° | 11.0° | 13.2° | 14.0° | 7.9° | 54.7 mm | 12.0 | 0.0 cm | 372.0 hrs | 15.3 hrs | — | 79.1% | 26.8 km/h | 57.4% |
| Jun | 18.9° | 13.9° | 16.3° | 18.8° | 11.9° | 58.0 mm | 10.6 | 0.0 cm | 378.0 hrs | 16.2 hrs | — | 78.8% | 23.9 km/h | 55.1% |
| Jul | 20.1° | 15.8° | 17.9° | 19.9° | 14.0° | 75.6 mm | 14.3 | 0.0 cm | 378.2 hrs | 15.7 hrs | — | 79.2% | 26.6 km/h | 54.6% |
| Aug | 20.5° | 16.3° | 18.3° | 20.1° | 14.8° | 55.2 mm | 10.8 | 0.0 cm | 347.2 hrs | 14.3 hrs | — | 78.2% | 26.3 km/h | 55.9% |
| Sep | 19.2° | 15.3° | 17.2° | 17.9° | 13.0° | 93.5 mm | 13.4 | 0.0 cm | 282.0 hrs | 12.6 hrs | — | 77.8% | 28.7 km/h | 60.7% |
| Oct | 16.6° | 13.4° | 15.0° | 14.3° | 10.1° | 109.4 mm | 14.3 | 0.0 cm | 226.3 hrs | 10.8 hrs | — | 79.5% | 32.4 km/h | 68.1% |
| Nov | 13.1° | 10.3° | 11.8° | 9.5° | 5.5° | 128.0 mm | 16.4 | 3.0 cm | 153.0 hrs | 9.1 hrs | — | 77.1% | 35.5 km/h | 75.6% |
| Dec | 10.7° | 8.0° | 9.4° | 6.5° | 2.7° | 107.1 mm | 13.5 | 0.7 cm | 117.8 hrs | 8.3 hrs | — | 81.0% | 35.9 km/h | 78.3% |