Weather in St Helier for September 2024
Until now, September 2024 in St Helier has been significantly cooler than historical averages by -2 °C, with average temperature of 16.9 °C.
The forecast for the next days in St Helier predicts temperatures to be around 16 °C, close to the historical average.
In general, the average temperature in St Helier at the beginning of September is 19.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 15.3 °C by the end of September.
The climate of St Helier in September is notably wet, with an average of 13 rainy days.
Is September a good time to visit St Helier? check out the best time to travel to St Helier page.
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St Helier in September average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  18° | ||||||
| 2  19° | 3 20° | 4  20° | 5 20° | 6 20° | 7 20° | 8 19° |
| 9 20° | 10  19° | 11  18° | 12 17° | 13  17° | 14 17° | 15 19° |
| 16 19° | 17 19° | 18 19° | 19 20° | 20 19° | 21 18° | 22 17° |
| 23 16° | 24 16° | 25  17° | 26 17° | 27 14° | 28 14° | 29 14° |
| 30 15° |
You can click on date
Temperatures trend during September in St Helier
September weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Light rain shower | 18° /17° | 14.5 mm | 4 | |
| 2 Sept. | Partly cloudy | 19° /16° | 1.2 mm | 5 | |
| 3 Sept. | Partly cloudy | 20° /17° | 0.7 mm | 5 | |
| 4 Sept. | Sunny | 20° /17° | 0.7 mm | 5 | |
| 5 Sept. | Sunny | 20° /17° | 2.6 mm | 5 | |
| 6 Sept. | Partly cloudy | 20° /17° | 0 mm | 5 | |
| 7 Sept. | Sunny | 20° /17° | 5.1 mm | 5 | |
| 8 Sept. | Partly cloudy | 19° /17° | 6 mm | 5 | |
| 9 Sept. | Patchy rain possible | 20° /17° | 0.7 mm | 5 | |
| 10 Sept. | Patchy light rain with thunder | 19° /17° | 7.8 mm | 5 | |
| 11 Sept. | Cloudy | 18° /16° | 1.1 mm | 4 | |
| 12 Sept. | Partly cloudy | 17° /15° | 1.3 mm | 4 | |
| 13 Sept. | Overcast | 17° /15° | 0.2 mm | 4 | |
| 14 Sept. | Sunny | 17° /15° | 0 mm | 5 | |
| 15 Sept. | Sunny | 19° /15° | 0 mm | 6 | |
| 16 Sept. | Patchy rain possible | 19° /17° | 0.7 mm | 5 | |
| 17 Sept. | Light rain shower | 19° /17° | 2.9 mm | 5 | |
| 18 Sept. | Light rain shower | 19° /17° | 0.9 mm | 5 | |
| 19 Sept. | Sunny | 20° /17° | 0 mm | 4 | |
| 20 Sept. | Patchy rain possible | 19° /17° | 0.2 mm | 4 | |
| 21 Sept. | Patchy rain possible | 18° /16° | 3.3 mm | 2 | |
| 22 Sept. | Patchy rain possible | 17° /16° | 0.2 mm | 3 | |
| 23 Sept. | Patchy rain possible | 16° /16° | 3.6 mm | 2 | |
| 24 Sept. | Patchy rain possible | 16° /16° | 0.5 mm | 4 | |
| 25 Sept. | Moderate rain | 17° /15° | 10.5 mm | 4 | |
| 26 Sept. | Patchy rain possible | 17° /16° | 1.2 mm | 4 | |
| 27 Sept. | Patchy rain possible | 14° /14° | 1.7 mm | 3 | |
| 28 Sept. | Partly cloudy | 14° /13° | 0.1 mm | 4 | |
| 29 Sept. | Partly cloudy | 14° /13° | 0 mm | 4 | |
| 30 Sept. | Partly cloudy | 15° /13° | 0 mm | 4 | |
| Next | |||||
St Helier in September - FAQ
What to pack to St Helier in September?
As you prepare for your trip to St Helier 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 St Helier, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Umbrellas/Raincoats: For rainy days
Quick links
Where is St Helier?Get accurate weather forecasts for St Helier, located at latitude 49.188 and longitude -2.105. Stay updated with localized weather information tailored for St Helier.