Saint Croix
September
Weather in Saint Croix for September 2025
Your guide to Saint Croix weather in September - trends and predictions
In general, the average temperature in Saint Croix 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 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? check out the best time to travel to Saint Croix page.
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4
Dry days
26
Rainy days
0
Snow days
31°/27°
Temperatures
22 km/h
Avg max wind
76 %
Avg humidity
Saint Croix in September average weather
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| 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° |
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Temperatures trend during September in Saint Croix
See the weather trend as well as the moving average line
September weather day by day
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| 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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Important Notice
Our weather forecast for Saint Croix in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Saint Croix forecast closer to your planned date for the most up-to-date weather information.
Saint Croix in September - FAQ
What are the expected maximum and minimum temperatures in Saint Croix during September?
During September, expect a variety of temperatures with highs around 31° and lows near 27°, suitable for diverse activities and preferences.
How much rainfall should be expected in Saint Croix during September?
Moderate rainfall is anticipated in Saint Croix during September, with a total of 74.5 mm spread over approximately 26 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Saint Croix during September?
The average wind speed in Saint Croix during September is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Saint Croix in September?
As you prepare for your trip to Saint Croix 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, 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
Explore the daily rainfall trends and prepare for Saint Croixs September weather 💧
UV exposure in Saint Croix during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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