Weather in Saint Croix Island for September 2025
In general, the average temperature in Saint Croix Island at the beginning of September is 30.4 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 30.7 °C by the end of September.
Saint Croix Island experiences an exceptionally high level of rainfall in September, with more than 24 rainy days on average.
Is September a good time to visit Saint Croix Island? check out the best time to travel to Saint Croix Island page.
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Saint Croix Island in September average weather
Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
---|---|---|---|---|---|---|
1 30° | 2 30° | 3 31° | 4 30° | 5 30° | 6 31° | 7 31° |
8 31° | 9 31° | 10 30° | 11 31° | 12 30° | 13 30° | 14 31° |
15 31° | 16 31° | 17 29° | 18 30° | 19 31° | 20 31° | 21 31° |
22 31° | 23 31° | 24 30° | 25 30° | 26 30° | 27 31° | 28 31° |
29 31° | 30 32° |
You can click on date
Temperatures trend during September in Saint Croix Island
September weather day by day
Date | Weather | Temperatures | Rain | UV | More |
---|---|---|---|---|---|
1 Sept. | Patchy rain possible | 30° /26° | 1.5 mm | 7 | |
2 Sept. | Moderate rain | 30° /27° | 9.2 mm | 7 | |
3 Sept. | Moderate rain at times | 31° /27° | 5.7 mm | 7 | |
4 Sept. | Overcast | 30° /27° | 2.8 mm | 7 | |
5 Sept. | Partly cloudy | 30° /26° | 1.9 mm | 8 | |
6 Sept. | Moderate rain | 31° /26° | 5 mm | 7 | |
7 Sept. | Torrential rain shower | 31° /27° | 6.9 mm | 7 | |
8 Sept. | Light rain shower | 31° /27° | 4.3 mm | 7 | |
9 Sept. | Thundery outbreaks possible | 31° /27° | 9.8 mm | 7 | |
10 Sept. | Patchy rain possible | 30° /26° | 1.4 mm | 7 | |
11 Sept. | Patchy rain possible | 31° /27° | 1.5 mm | 7 | |
12 Sept. | Cloudy | 30° /27° | 2.6 mm | 7 | |
13 Sept. | Light rain shower | 30° /27° | 2.4 mm | 7 | |
14 Sept. | Overcast | 31° /27° | 0.7 mm | 7 | |
15 Sept. | Patchy light rain with thunder | 31° /27° | 0.9 mm | 7 | |
16 Sept. | Patchy rain possible | 31° /27° | 0.7 mm | 7 | |
17 Sept. | Patchy rain possible | 29° /27° | 1.2 mm | 7 | |
18 Sept. | Partly cloudy | 30° /27° | 0.2 mm | 8 | |
19 Sept. | Partly cloudy | 31° /27° | 0 mm | 8 | |
20 Sept. | Patchy rain possible | 31° /27° | 0.4 mm | 8 | |
21 Sept. | Light rain shower | 31° /27° | 2.2 mm | 8 | |
22 Sept. | Patchy rain possible | 31° /27° | 0.5 mm | 8 | |
23 Sept. | Light rain shower | 31° /27° | 1.2 mm | 7 | |
24 Sept. | Light rain shower | 30° /27° | 4.5 mm | 7 | |
25 Sept. | Light rain shower | 30° /28° | 1.7 mm | 8 | |
26 Sept. | Moderate or heavy rain shower | 30° /28° | 7.3 mm | 7 | |
27 Sept. | Patchy rain possible | 31° /27° | 6.6 mm | 7 | |
28 Sept. | Patchy rain possible | 31° /28° | 4.1 mm | 7 | |
29 Sept. | Patchy rain possible | 31° /27° | 0.3 mm | 8 | |
30 Sept. | Patchy rain possible | 32° /27° | 1 mm | 7 | |
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Saint Croix Island in September - FAQ
What to pack to Saint Croix Island in September?
As you prepare for your trip to Saint Croix Island 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 Croix Island, 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
- Insect Repellent: For destinations with mosquitos or other insects
September rainfall patterns in Saint Croix Island
UV exposure in Saint Croix Island during September
Quick links
Get accurate weather forecasts for Saint Croix Island, located at latitude 17.728 and longitude -64.747. Stay updated with localized weather information tailored for Saint Croix Island.