Jamestown Weather in August
August in Jamestown brings pleasant temperatures, with daytime highs of 21°C (70°F) and nights around 19°C (66°F). Only 14 mm (0.6 in) of rainfall is typical, making it a largely dry month.
Rainfall in Jamestown in August
Historically, approximately 9 days this month are expected to have rain, averaging 14 mm (0.6 in). Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Jamestown in August
August is a good time to be in Jamestown. Days are excellent, reaching 21°C (70°F), with nights around 19°C (66°F). The difference between afternoon and evening temperatures is usually noticeable. Nights drop to around 19°C (66°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.For additional travel inspiration, our weather planner can help you discover destinations worldwide.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Saint Helena, check out our Jamestown's climate page.
Jamestown Temperature in August
Min Temperature
19°C (66°F)
Max Temperature
21°C (70°F)
Chance of Rain
30%
Precipitation
14 mm (0.6 in)
Rainy days
9 days
Humidity
76%
Daily Historical Temperatures
47-year average (1978-2025)
Based on our historical records, temperatures in Jamestown typically stay consistent throughout August, with daily highs averaging around 21°C (70°F). Nights are pleasant, with lows around 15°C (59°F).
Average temperatures in August
Daily Historical Precipitation
47-year average (1978-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Jamestown in August
Browse day-by-day weather records for Jamestown spanning 50 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Jamestown historical weather extremes in August
Our historical data for Jamestown spans 2002 to 2025, revealing these weather extremes.
- The warmest day in August was on August 2, 2021, with a maximum of 21°C (70°F).
- Jamestown experienced its chilliest August day on August 20, 2013, reaching only 15°C (59°F).
- The lowest overnight temperature recorded in August was 11°C (52°F) (August 9, 2014).
Best Places in Saint Helena in August
Find out more about the weather in Saint Helena and which places have the best travel conditions in this month. See all of Saint Helena in August →
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What to Wear in Jamestown in August
Comfortable temperatures call for an easy wardrobe in August. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Dry conditions mean you won't need to worry about rain protection.What To Do in Jamestown in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Saint Helena, check out our Jamestown's climate page.
See the full Jamestown climate overview or explore weather in Saint Helena.
