Saint Lucia in September
sweet spot · one of the best months to go · the warmest month of the year
The year in Saint Lucia
Tap a month for its page
- JanJSaint Lucia in January: ok, busy
- FebFSaint Lucia in February: sweet spot
- MarMSaint Lucia in March: good, busy
- AprASaint Lucia in April: sweet spot
- MayMSaint Lucia in May: sweet spot
- JunJSaint Lucia in June: sweet spot
- JulJSaint Lucia in July: good
- AugASaint Lucia in August: good
- SepSSaint Lucia in September: sweet spot
- OctOSaint Lucia in October: good
- NovNSaint Lucia in November: good
- DecDSaint Lucia in December: good, busy
- Sweet spot
- Good
- OK
- Avoid
- Busy
Plan this trip
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Flights from
Flights
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Book with the airline
Where to stay
Book direct
Luxury
Things to do
Car hire
Rent direct
Travel insurance
Check whether your bank card or home insurance already covers this trip.
If the trip needs a visa, the travel agent or visa centre usually sells the cover it asks for.
Mobile data (eSIM)
Your own plan's EU roaming may already cover this.
Renting a pocket Wi-Fi is the other common way to stay connected.
These are sites people in book with. Each opens in a new tab, on the site's own pages.
The numbers
| Daily high | 31°C |
|---|---|
| Nightly low | 26°C |
| Feels like, afternoon | 36°C |
| Rainy days, 1 mm or more | 5 · 100 mm |
| Humidity | 77% |
| Sunshine | 11.2 h/day |
| Daylight | 12.2 h/day |
| Crowds | 100 / 100, higher is quieter |
Ten-year averages for this calendar month. A rainy day is one with at least 1 mm of rain, as a weather station counts it. The model these figures come from drizzles more than a rain gauge, the more so the warmer the month, so its days count from 2 mm, rising to 5 mm in the hottest.
Weather read at Rodney Bay, 39 km from the airport (UVF): ten years of ERA5 and ERA5-Land reanalysis, through Open-Meteo's open data.
How busy it gets
Saint Lucia in pictures
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Holland Tringham, Public domain, via Wikimedia Commons
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Westall & Co., St. Lucia, Public domain, via Wikimedia Commons
What to pack
- Summer clothes by day, highs around 31°C.
- Sun protection: about 11 hours of sunshine a day.
- Humidity averages 77%; breathable fabrics dry faster.
Each line is a threshold over the ten-year figures above, not advice from anywhere else.
Before you go
| Cost of living | cheap — prices run about 51% of the United States' (World Bank, 2025) |
|---|---|
| Currency | Eastern caribbean dollar |
| Languages | English |
| Plugs | Type G, 240 V |
| Driving | On the left |
| Calling code | +1758 |
| Travel advice | No advice against travel — UK Foreign Office, updated 2025-12-10 Exercise normal security precautions — Global Affairs Canada, updated 2026-09-24 Level 2: Exercise Increased Caution — US State Department, updated 2026-07-10 |
| Health | UK Foreign Office health advice |
Facts from Wikidata (CC0), the UK Foreign Office (Open Government Licence) and the World Bank, refreshed 2026-10-07. The advisory is written for British travellers; entry rules depend on your passport.Travel advice for American readers is the US State Department's (public domain), and for Canadian readers Global Affairs Canada's (Open Government Licence - Canada), each in its own words and written for its own citizens; entry rules depend on your passport.
On arrival in Saint Lucia: the apps, paying, getting around, tipping and the emergency numbers.
September elsewhere
In September from
The other months at Saint Lucia
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