🇸🇭 Weather in Jamestown
Current Weather in Jamestown
19°C
Feels like 10°C. Patchy rain nearby.
🌬️ 23 km/h ESE
💧 65% Humidity
🧭 1021 hPa
👁️ 10.0 km Visibility
☀️ UV Index: 4.7
🌡️ Dew Point: 12°C
🌅 Sunrise: 06:51 AM
🌇 Sunset: 06:03 PM
Map Overlays:
Hourly Forecast for Jamestown
13:00
18°
9%
14:00
18°
13%
15:00
18°
14%
16:00
19°
11%
17:00
19°
14%
18:00
19°
13%
19:00
18°
16%
20:00
18°
13%
21:00
19°
14%
22:00
19°
13%
23:00
19°
10%
00:00
19°
8%
01:00
19°
7%
02:00
19°
6%
03:00
19°
7%
04:00
19°
8%
05:00
18°
11%
06:00
18°
12%
07:00
18°
16%
08:00
18°
13%
09:00
18°
10%
10:00
18°
7%
11:00
19°
7%
12:00
19°
8%
14-Day Forecast for Jamestown
Sun, Jul 05
Patchy rain nearby
19° /
18°
Mon, Jul 06
Partly Cloudy
19° /
18°
Tue, Jul 07
Partly Cloudy
19° /
18°
Wed, Jul 08
Partly Cloudy
19° /
18°
Thu, Jul 09
Sunny
19° /
18°
Fri, Jul 10
Partly Cloudy
19° /
19°
Sat, Jul 11
Partly Cloudy
19° /
19°
Sun, Jul 12
Patchy rain nearby
19° /
19°
Mon, Jul 13
Patchy rain nearby
19° /
19°
Tue, Jul 14
Cloudy
19° /
19°
Wed, Jul 15
Cloudy
19° /
19°
Thu, Jul 16
Patchy rain nearby
19° /
18°
Fri, Jul 17
Patchy rain nearby
19° /
18°
Sat, Jul 18
Patchy rain nearby
19° /
18°
Additional Forecasts for Jamestown
Marine Forecast
Tide Forecast
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 65.0
μg/m³
O₃ (Ozone) 66.0
μg/m³
SO₂ (Sulphur Dioxide) 0.2
μg/m³
PM2.5 (Fine particles) 9.1 μg/m³
PM10 (Coarse particles) 15.8 μg/m³
Local Sports Events
Historical Weather
Weather Forecasts for Other Cities in Saint Helena, Ascension and Tristan da Cunha
Learn More about Weather
FAQ — Weather in Jamestown
Common questions about this page — answers customized for the data shown above.
The current weather in Jamestown is patchy rain nearby with a temperature of 19°C (feels like 10°C). Humidity is at 65% and wind speed is 23 km/h. Browse weather for other cities for comparison.
Tomorrow's forecast for Jamestown shows partly cloudy with a high of 19°C and a low of 18°C. There is a 18% chance of rain. Tomorrow’s sunrise and sunset times for Jamestown are also available.
Over the next 7 days in Jamestown, temperatures are forecast to range from a low of 18°C to a high of 19°C. The 7-day forecast table above shows day-by-day conditions, precipitation probability and hourly breakdowns. For weather in nearby cities, see Saint Helena, Ascension and Tristan da Cunha city pages.
The 7-day forecast for Jamestown shows no days with a 50%+ chance of rain. Conditions look mostly dry, though brief showers can occur without being captured in daily averages — check the hourly forecast above for short-window precipitation timing.
Thursday is forecast to be the warmest day in Jamestown this week, with a high of 19°C and sunny conditions expected.
Jamestown sits at approximately 15.9° south latitude, which generally produces a tropical or sub-tropical climate, with relatively warm temperatures year-round and distinct wet and dry seasons rather than a clear summer–winter cycle. Local geography (coast vs. inland, altitude, prevailing winds) shapes the specific weather patterns shown in the forecast above.
Climatically, the best time to visit Jamestown is generally the local dry season — typically the cooler months of the year for that latitude — when humidity and rainfall are at their lowest. Exact timing depends on what you're after — fewer crowds, specific events, lowest rainfall, or warmest weather. Check the forecast above before planning a short trip.
In the Southern Hemisphere, summer falls in December–February and winter in June–August — opposite to the Northern Hemisphere. Spring is September–November and autumn is March–May. Jamestown follows this Northern/Southern Hemisphere pattern based on its latitude. See the sun page for exact daylight hours through the year.