Weather in Jamestown in August
Climate normals based on 10 years of historical data for Jamestown, St. Helena.
Average high
20°C
Average low
18°C
Rainfall
21 mm
8 rainy days
Sunshine
1.2h/day
Luftfeuchtigkeit
75%
How Hot Is Jamestown in August?
August in Jamestown averages 20°C in the afternoon and 18°C overnight, with a typical daily mean of 19°C.
Sunshine Hours in August
Heavy overcast keeps sun limited in Jamestown: just 1.2h a day in August.
Does It Rain In Jamestown In August?
Brief rain events are typical: Jamestown sees 21mm across 8 days in August.
Is Jamestown Humid In August?
Jamestown feels muggy this month with humidity around 75%, especially in calm air.
Wind In Jamestown In August
Wind picks up in Jamestown during August — averaging 31 kph, with gustier afternoons.
Cloud Cover In Jamestown In August
Persistent overcast defines Jamestown's August: 80% cloud cover on average.
Cities With Similar Weather In August
Weather in Jamestown, month by month
| Month | High / Low | Regen | |
|---|---|---|---|
| Wetter im Januar | 23°C / 21°C | 19mm | Details → |
| Wetter im Februar | 24°C / 22°C | 20mm | Details → |
| Wetter im März | 24°C / 22°C | 25mm | Details → |
| Wetter im April | 24°C / 22°C | 19mm | Details → |
| Wetter im Mai | 23°C / 21°C | 20mm | Details → |
| Wetter im Juni | 22°C / 20°C | 22mm | Details → |
| Wetter im Juli | 20°C / 18°C | 24mm | Details → |
| Wetter im August | 20°C / 18°C | 21mm | |
| Wetter im September | 19°C / 18°C | 20mm | Details → |
| Wetter im Oktober | 20°C / 18°C | 18mm | Details → |
| Wetter im November | 20°C / 18°C | 15mm | Details → |
| Wetter im Dezember | 21°C / 20°C | 22mm | Details → |