Weather in Charlestown for September 2025
In general, the average temperature in Charlestown at the beginning of September is 29 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 29.1 °C by the end of September.
Charlestown experiences an exceptionally high level of rainfall in September, with more than 24 rainy days on average.
Is September a good time to visit Charlestown? check out the best time to travel to Charlestown page.
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Charlestown in September average weather
Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
---|---|---|---|---|---|---|
1 29° | 2 29° | 3 29° | 4 29° | 5 29° | 6 29° | 7 29° |
8 29° | 9 29° | 10 29° | 11 29° | 12 29° | 13 28° | 14 29° |
15 29° | 16 29° | 17 29° | 18 29° | 19 29° | 20 29° | 21 29° |
22 29° | 23 29° | 24 29° | 25 29° | 26 29° | 27 30° | 28 29° |
29 29° | 30 29° |
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Temperatures trend during September in Charlestown
September weather day by day
Date | Weather | Temperatures | Rain | UV | More |
---|---|---|---|---|---|
1 Sept. | Light rain shower | 29° /28° | 2.3 mm | 6 | |
2 Sept. | Light rain shower | 29° /28° | 9.9 mm | 6 | |
3 Sept. | Light rain shower | 29° /28° | 2.1 mm | 6 | |
4 Sept. | Light rain shower | 29° /28° | 1.2 mm | 6 | |
5 Sept. | Patchy light drizzle | 29° /28° | 2.3 mm | 6 | |
6 Sept. | Light rain shower | 29° /28° | 0.9 mm | 6 | |
7 Sept. | Light rain shower | 29° /28° | 2.2 mm | 6 | |
8 Sept. | Patchy light rain | 29° /28° | 11.8 mm | 6 | |
9 Sept. | Moderate or heavy rain shower | 29° /28° | 13.4 mm | 6 | |
10 Sept. | Light rain shower | 29° /28° | 3.4 mm | 6 | |
11 Sept. | Light drizzle | 29° /28° | 1.5 mm | 6 | |
12 Sept. | Patchy rain possible | 29° /28° | 0.7 mm | 6 | |
13 Sept. | Moderate or heavy rain shower | 28° /28° | 9.4 mm | 6 | |
14 Sept. | Patchy light drizzle | 29° /28° | 2.3 mm | 6 | |
15 Sept. | Patchy rain possible | 29° /28° | 0.6 mm | 6 | |
16 Sept. | Patchy rain possible | 29° /28° | 1.6 mm | 6 | |
17 Sept. | Patchy rain possible | 29° /28° | 0.9 mm | 6 | |
18 Sept. | Partly cloudy | 29° /28° | 0.1 mm | 7 | |
19 Sept. | Patchy rain possible | 29° /28° | 1 mm | 7 | |
20 Sept. | Patchy light drizzle | 29° /28° | 0.5 mm | 7 | |
21 Sept. | Light rain shower | 29° /28° | 2.8 mm | 7 | |
22 Sept. | Patchy rain possible | 29° /28° | 0.4 mm | 7 | |
23 Sept. | Patchy rain possible | 29° /28° | 0.9 mm | 7 | |
24 Sept. | Light rain shower | 29° /28° | 0.7 mm | 6 | |
25 Sept. | Patchy rain possible | 29° /28° | 1.2 mm | 6 | |
26 Sept. | Patchy rain possible | 29° /28° | 2.9 mm | 6 | |
27 Sept. | Light rain shower | 30° /28° | 2.5 mm | 7 | |
28 Sept. | Patchy rain possible | 29° /28° | 0.9 mm | 6 | |
29 Sept. | Patchy rain possible | 29° /28° | 3.5 mm | 6 | |
30 Sept. | Patchy light rain | 29° /28° | 2.4 mm | 6 | |
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Charlestown in September - FAQ
What to pack to Charlestown in September?
As you prepare for your trip to Charlestown in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Charlestown, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Sandals/Flip-flops: Comfortable for warm climates
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
September rainfall patterns in Charlestown
UV exposure in Charlestown during September
Quick links
Get accurate weather forecasts for Charlestown, located at latitude 17.133 and longitude -62.617. Stay updated with localized weather information tailored for Charlestown.