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Hourly Forecast
Daylight Hours
05:59
Sunrise
17:50
Sunset
Moon
Waxing Crescent
08:13
Moonrise
22:12
Moonset
Daily Forecast
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Wednesday
Thursday
Friday
Saturday
Sunday
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Thursday
Air Quality Data Available
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UV Index
Humidity
Weather in Charlestown today, September 15, 2026
Charlestown sees a largely clear day on September 15, 2026, interrupted by cloudier skies around 14:00. Plan for bright conditions either side of that cloudier interval.
Expect highs of 21°C and cooler readings close to 11°C. Relative humidity sits between 38% and 62%, reaching its peak around 23:00. Winds stay light, near 11.7 km/h by 14:00, so the day feels still more than breezy.
Later hours favour clearer intervals, as cloud stays near 38% around 14:00. The afternoon is the better half for outdoor time. Visibility stays near 16.1 km. Sunrise is at 05:59 and sunset at 17:50, giving 11 hours 50 minutes of sunlight today.
Taken together, settled sunshine in Charlestown on September 15, 2026 makes outdoor timing easier, with highs near 21°C.
Frequently asked questions about weather in Charlestown
How warm does it get in Charlestown?
The warmest month in Charlestown is December, with average high temperatures of 24°C. The average temperature during this period is around 18°C.
How cold does it get in Charlestown?
The coldest month in Charlestown is July, with average low temperatures of 3°C. The average temperature during this period is around 9°C.
What is the wettest time of year in Charlestown?
The wettest month in Charlestown is December, with an average of 205mm of precipitation.
What is the driest time of year in Charlestown?
The driest month in Charlestown is June, with an average of 6mm of precipitation.
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