Climate & Weather in Jamestown, 🇸🇭 Saint Helena - Monthly Averages, Forecast & Air Quality
🇸🇭 Jamestown,
Saint Helena
#3377
Nomad Score
4.7
Coords
-15.9277296, -5.7160872
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CURRENT CONDITIONS
Temperature
21.6°C
/
17.7°C
Feels Like
20.5°C / 15.9°C
Weather
🌧️ Light drizzle
Humidity
%
Wind
25.0 km/h
(gusts 54.4)
UV Index
7.8
Sunrise / Sunset
06:34
/
18:15
Daylight
11.7 hrs
7-DAY FORECAST
| Date | Weather | High | Low | Rain % |
|---|---|---|---|---|
| Mon 24 Aug | 🌧️ Light drizzle | 21.6° | 17.7° | 24% |
| Tue 25 Aug | 🌤️ Overcast | 23.0° | 17.8° | 0% |
| Wed 26 Aug | 🌤️ Overcast | 22.6° | 17.8° | 0% |
| Thu 27 Aug | 🌤️ Overcast | 22.9° | 17.2° | 0% |
| Fri 28 Aug | 🌤️ Overcast | 22.6° | 17.6° | 2% |
| Sat 29 Aug | 🌧️ Light drizzle | 22.5° | 17.7° | 25% |
BEST MONTHS TO VISIT
| Month | Rating | Avg High | Avg Low | Rain Days |
|---|---|---|---|---|
| April | Excellent | 24.3°C | 21.8°C | 8.0 |
| January | Excellent | 23.5°C | 20.8°C | 10.8 |
| February | Excellent | 24.5°C | 22.0°C | 14.3 |
| March | Excellent | 24.7°C | 22.3°C | 13.7 |
| May | Excellent | 23.1°C | 20.7°C | 9.5 |
| December | Excellent | 22.6°C | 19.5°C | 13.7 |
| June | Good | 21.7°C | 19.4°C | 11.6 |
| November | Good | 21.5°C | 18.6°C | 8.2 |
| October | Good | 20.4°C | 17.9°C | 10.6 |
| August | Good | 20.3°C | 17.8°C | 10.5 |
| September | Good | 20.1°C | 17.7°C | 11.4 |
| July | Good | 20.9°C | 18.3°C | 16.1 |
TEMPERATURE BY MONTH
PRECIPITATION & RAIN DAYS
SUNSHINE, UV & HUMIDITY
AIR QUALITY
73
🟡 Moderate
US Air Quality Index
European AQI: 45
PM2.5
15.3 µg/m³
PM10
24.2 µg/m³
Ozone
67.0 µg/m³
NO₂
0.0 µg/m³
SO₂
0.2 µg/m³
CO
95.0 µg/m³
UV Index
0.0
Dust
0.0 µg/m³
MONTHLY CLIMATE DATA
| Month | High | Low | Mean | Feels Hi | Feels Lo | Precip | Rain Days | Snow | Sun | Daylight | UV | Humidity | Wind | Clouds |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | 23.5° | 20.8° | 22.2° | 25.0° | 20.7° | 30.8 mm | 10.8 | 0.0 cm | 384.4 hrs | 12.9 hrs | - | 76.8% | 25.4 km/h | 54.5% |
| Feb | 24.5° | 22.0° | 23.2° | 26.1° | 22.2° | 38.0 mm | 14.3 | 0.0 cm | 330.4 hrs | 12.6 hrs | - | 76.9% | 26.5 km/h | 53.8% |
| Mar | 24.7° | 22.3° | 23.4° | 26.0° | 22.4° | 37.3 mm | 13.7 | 0.0 cm | 350.3 hrs | 12.2 hrs | - | 76.9% | 27.8 km/h | 53.2% |
| Apr | 24.3° | 21.8° | 23.0° | 25.1° | 21.5° | 23.6 mm | 8.0 | 0.0 cm | 327.0 hrs | 11.7 hrs | - | 75.2% | 27.6 km/h | 47.0% |
| May | 23.1° | 20.7° | 21.9° | 22.7° | 19.8° | 29.9 mm | 9.5 | 0.0 cm | 331.7 hrs | 11.4 hrs | - | 74.9% | 29.3 km/h | 52.0% |
| Jun | 21.7° | 19.4° | 20.5° | 20.8° | 18.0° | 30.9 mm | 11.6 | 0.0 cm | 312.0 hrs | 11.2 hrs | - | 73.4% | 27.6 km/h | 53.5% |
| Jul | 20.9° | 18.3° | 19.5° | 18.7° | 16.0° | 38.6 mm | 16.1 | 0.0 cm | 303.8 hrs | 11.3 hrs | - | 71.5% | 30.9 km/h | 67.2% |
| Aug | 20.3° | 17.8° | 18.9° | 18.5° | 15.5° | 28.9 mm | 10.5 | 0.0 cm | 294.5 hrs | 11.6 hrs | - | 72.2% | 28.7 km/h | 75.6% |
| Sep | 20.1° | 17.7° | 18.8° | 18.4° | 15.4° | 31.2 mm | 11.4 | 0.0 cm | 285.0 hrs | 12.0 hrs | - | 74.3% | 30.4 km/h | 84.1% |
| Oct | 20.4° | 17.9° | 19.0° | 19.1° | 15.6° | 30.3 mm | 10.6 | 0.0 cm | 306.9 hrs | 12.5 hrs | - | 73.8% | 29.6 km/h | 82.9% |
| Nov | 21.5° | 18.6° | 19.9° | 21.4° | 17.1° | 22.2 mm | 8.2 | 0.0 cm | 324.0 hrs | 12.9 hrs | - | 74.0% | 26.4 km/h | 76.9% |
| Dec | 22.6° | 19.5° | 20.9° | 22.9° | 18.6° | 38.9 mm | 13.7 | 0.0 cm | 362.7 hrs | 13.1 hrs | - | 75.5% | 27.1 km/h | 67.3% |