☀️ Yes! Average temperature: 30°C
Yes, absolutely! With temperatures averaging 30°C, it's hot and perfect for beach holidays. St. Lucia in September has an average air temperature of 30°C with sea temperatures around 29°C. You can expect 7 hours of sunshine per day and 195mm of rainfall, which means heavy rainfall — pack waterproofs.
At 29°C the sea is like a warm bath — perfect for swimming, snorkelling, and diving. With 7 hours of daily sunshine, there's plenty of time to enjoy outdoor activities. Pack light clothing, high-SPF sunscreen, a wide-brimmed hat, and swimwear. Stay hydrated.
St. Lucia is one of the top warm destinations for September holidays from the UK. The average flight time from the UK is comfortable and there are usually good deals available for this time of year.
Here's how St. Lucia stacks up against similar destinations in September:
| Destination | Air °C | Sea °C | Rain | Sun |
|---|---|---|---|---|
| St. Lucia | 30°C | 29°C | 195mm | 7h |
| Antigua | 30°C | 29°C | 100mm | 8h |
| Barbados | 30°C | 29°C | 150mm | 8h |
| Cancun | 30°C | 29°C | 155mm | 7h |
| Goa | 30°C | 27°C | 250mm | 6h |
| Hawaii | 30°C | 27°C | 20mm | 9h |
See how St. Lucia's temperature changes throughout the year:
Looking for somewhere warm in September? These destinations are all 25°C+:
Yes, St. Lucia in September has average temperatures of 30°C, making it a warm destination. Sea temperatures are 29°C.
Yes, the sea temperature of 29°C is very comfortable for swimming.
Pack light clothing, high-SPF sunscreen, a wide-brimmed hat, and swimwear. Stay hydrated.
September is an excellent time to visit St. Lucia with warm weather and 7 hours of daily sunshine.
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