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Weather in Jamestown, Saint Helena, Ascension and Tristan da Cunha 🇸🇭

Weather Forecast in Jamestown

Current Weather in Jamestown

Patchy rain nearby
19°C
Feels like 10°C. Patchy rain nearby.
🌬️ 26 km/h SE
💧 77% Humidity
🧭 1019 hPa
👁️ 10.0 km Visibility
☀️ UV Index: 0.0
🌡️ Dew Point: 14°C
🌅 Sunrise: 06:48 AM
🌇 Sunset: 06:10 PM
Map Overlays:

In Jamestown right now it is 19°C and patchy rain nearby, feeling like 10°C. Humidity sits at 77% and winds are near 26 km/h, and the UV index is 0 (low). Over the next few days, temperatures in Jamestown range from about 18°C to 19°C.

Hourly Forecast for Jamestown

20:00
Patchy rain nearby
18°
22%
21:00
Patchy rain nearby
18°
23%
22:00
Patchy rain nearby
18°
23%
23:00
Patchy rain nearby
18°
23%
00:00
Patchy rain nearby
18°
22%
01:00
Patchy rain nearby
18°
23%
02:00
Patchy rain nearby
18°
26%
03:00
Patchy rain nearby
18°
25%
04:00
Patchy rain nearby
18°
25%
05:00
Patchy rain nearby
18°
23%
06:00
Patchy rain nearby
18°
22%
07:00
Patchy rain nearby
18°
24%
08:00
Patchy rain nearby
18°
24%
09:00
Patchy rain nearby
18°
23%
10:00
Patchy rain nearby
18°
20%
11:00
Overcast
18°
20%
12:00
Overcast
18°
20%
13:00
Cloudy
18°
17%
14:00
Cloudy
18°
18%
15:00
Overcast
18°
21%
16:00
Overcast
18°
21%
17:00
Patchy rain nearby
18°
22%
18:00
Patchy rain nearby
18°
23%
19:00
Patchy rain nearby
18°
22%

14-Day Forecast for Jamestown

Mon, Jul 27
Patchy rain nearby Patchy rain nearby
19° / 18°
Tue, Jul 28
Patchy rain nearby Patchy rain nearby
18° / 18°
Wed, Jul 29
Patchy rain nearby Patchy rain nearby
18° / 18°
Thu, Jul 30
Patchy rain nearby Patchy rain nearby
18° / 18°
Fri, Jul 31
Patchy rain nearby Patchy rain nearby
18° / 17°
Sat, Aug 01
Partly Cloudy Partly Cloudy
18° / 17°
Sun, Aug 02
Partly Cloudy Partly Cloudy
18° / 17°
Mon, Aug 03
Patchy rain nearby Patchy rain nearby
18° / 18°
Tue, Aug 04
Cloudy Cloudy
18° / 18°
Wed, Aug 05
Patchy rain nearby Patchy rain nearby
18° / 18°
Thu, Aug 06
Cloudy Cloudy
18° / 18°
Fri, Aug 07
Patchy rain nearby Patchy rain nearby
18° / 18°
Sat, Aug 08
Patchy rain nearby Patchy rain nearby
18° / 17°
Sun, Aug 09
Sunny Sunny
18° / 17°

Additional Forecasts for Jamestown

Air Quality

💨 US EPA Index 2 (Moderate)
CO (Carbon Monoxide) 79.0 μg/m³
O₃ (Ozone) 70.0 μg/m³
SO₂ (Sulphur Dioxide) 0.3 μg/m³
PM2.5 (Fine particles) 18.5 μg/m³
PM10 (Coarse particles) 30.5 μg/m³

Historical Weather

Browse Weather in Saint Helena, Ascension and Tristan da Cunha by cities in alphabetical order:

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Weather in Saint Helena, Ascension and Tristan da Cunha ›

Best Time to Be Outside in Jamestown Tomorrow

There is no good daylight window left in Jamestown today. Tomorrow, the most comfortable window looks like 09:00 to 11:00, when it is around 18°C. It should stay dry through that window. No significant rain is expected in the next several hours.

Frequently Asked Questions about Weather in Jamestown

What is the temperature in Jamestown right now?

The current temperature in Jamestown is 19°C (65°F), patchy rain nearby (feels like 10°C).

What's the weather like in Jamestown right now?

Current weather in Jamestown: Patchy rain nearby, humidity 77%, wind 26 km/h SE.

What is today's forecast for Jamestown?

Today in Jamestown: high 19°C, low 18°C, patchy rain nearby. Chance of rain: 43%.

What is the 7-day weather forecast for Jamestown?

Daily highs and lows for Jamestown:

  • 2026-07-27: 19°C / 18°C
  • 2026-07-28: 18°C / 18°C
  • 2026-07-29: 18°C / 18°C
  • 2026-07-30: 18°C / 18°C
  • 2026-07-31: 18°C / 17°C
  • 2026-08-01: 18°C / 17°C
  • 2026-08-02: 18°C / 17°C
Is it going to rain in Jamestown today?

There is a 43% chance of rain in Jamestown today. Total expected precipitation: 0.37 mm.

What is the wind speed in Jamestown right now?

Wind in Jamestown is currently 26 km/h (16 mph) from the SE.

What is the UV index in Jamestown right now?

The UV index in Jamestown is currently 0 (low). Sun protection is recommended when the index is 3 or higher.

Weather forecasts for other major cities in 🇸🇭 Saint Helena, Ascension and Tristan da Cunha: Jamestown