Weather in Saint John’s for September 2025
In general, the average temperature in Saint John’s 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.
Saint John’s experiences an exceptionally high level of rainfall in September, with more than 20 rainy days on average.
Is September a good time to visit Saint John’s? check out the best time to travel to Saint John’s page.
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Saint John’s 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 30° | 12 29° | 13 29° | 14 29° |
15 29° | 16 29° | 17 29° | 18 29° | 19 29° | 20 29° | 21 30° |
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 Saint John’s
September weather day by day
Date | Weather | Temperatures | Rain | UV | More |
---|---|---|---|---|---|
1 Sept. | Light rain shower | 29° /28° | 2.2 mm | 6 | |
2 Sept. | Patchy rain possible | 29° /28° | 4.9 mm | 6 | |
3 Sept. | Patchy rain possible | 29° /28° | 2.7 mm | 6 | |
4 Sept. | Patchy rain possible | 29° /28° | 1.7 mm | 6 | |
5 Sept. | Light rain shower | 29° /28° | 1.8 mm | 6 | |
6 Sept. | Light rain shower | 29° /28° | 9 mm | 6 | |
7 Sept. | Patchy rain possible | 29° /28° | 3.9 mm | 6 | |
8 Sept. | Light rain shower | 29° /28° | 8.8 mm | 6 | |
9 Sept. | Patchy rain possible | 29° /27° | 8.5 mm | 6 | |
10 Sept. | Patchy rain possible | 29° /28° | 5.4 mm | 6 | |
11 Sept. | Light rain shower | 30° /28° | 2.3 mm | 7 | |
12 Sept. | Cloudy | 29° /28° | 0.2 mm | 6 | |
13 Sept. | Partly cloudy | 29° /27° | 5.1 mm | 7 | |
14 Sept. | Partly cloudy | 29° /28° | 0.5 mm | 7 | |
15 Sept. | Partly cloudy | 29° /28° | 0.2 mm | 7 | |
16 Sept. | Patchy rain possible | 29° /27° | 2.6 mm | 6 | |
17 Sept. | Patchy light rain | 29° /28° | 1.6 mm | 7 | |
18 Sept. | Patchy rain possible | 29° /28° | 0.2 mm | 6 | |
19 Sept. | Patchy rain possible | 29° /28° | 0.4 mm | 6 | |
20 Sept. | Patchy light drizzle | 29° /28° | 2.5 mm | 6 | |
21 Sept. | Light rain shower | 30° /28° | 6.1 mm | 7 | |
22 Sept. | Patchy rain possible | 29° /28° | 0.3 mm | 6 | |
23 Sept. | Patchy light drizzle | 29° /27° | 0.9 mm | 6 | |
24 Sept. | Light rain shower | 29° /28° | 1.7 mm | 6 | |
25 Sept. | Light rain shower | 29° /28° | 3 mm | 6 | |
26 Sept. | Patchy light rain | 29° /28° | 3.7 mm | 6 | |
27 Sept. | Light rain shower | 30° /28° | 4 mm | 7 | |
28 Sept. | Patchy light drizzle | 29° /28° | 2.5 mm | 6 | |
29 Sept. | Patchy rain possible | 29° /28° | 1.5 mm | 6 | |
30 Sept. | Patchy light drizzle | 29° /28° | 7.1 mm | 6 | |
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Saint John’s in September - FAQ
What to pack to Saint John’s in September?
As you prepare for your trip to Saint John’s 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 Saint John’s, 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 Saint John’s
UV exposure in Saint John’s during September
Quick links
Get accurate weather forecasts for Saint John’s, located at latitude 17.121 and longitude -61.843. Stay updated with localized weather information tailored for Saint John’s.