Saint Lucia Weather Forecast
Saint Lucia weather: 74°F, light drizzle. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Will it rain in Saint Lucia?
Yes - rain is likely in Saint Lucia today.
A 57% chance means rain is likely somewhere nearby at some point - carry a layer, but do not cancel.
Over the next 7 days, about 0,5 in of precipitation is forecast, with the wettest days falling on Thu, Fri, Sat, Sun, Tue and Wed.
Rainfall over the next 7 days is close to normal for September (0,5 in against a typical 0,8 in).
16-day forecast for Saint Lucia
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Thu, Sep 17 | 🌦️ Light drizzle | 85° / 73° | 57% · 0,1 in | 10 mph | 7 |
| Fri, Sep 18 | 🌦️ Drizzle | 85° / 73° | 76% · 0,1 in | 8 mph | 9 |
| Sat, Sep 19 | 🌧️ Heavy drizzle | 87° / 73° | 66% · 0,1 in | 6 mph | 9 |
| Sun, Sep 20 | 🌤️ Mainly clear | 87° / 73° | 59% | 6 mph | 9 |
| Mon, Sep 21 | 🌦️ Light drizzle | 88° / 72° | 33% · 0,1 in | 6 mph | 9 |
| Tue, Sep 22 | 🌦️ Drizzle | 84° / 72° | 63% · 0,1 in | 10 mph | 9 |
| Wed, Sep 23 | 🌦️ Light drizzle | 87° / 74° | 70% · 0,0 in | 9 mph | 8 |
| Thu, Sep 24 | 🌦️ Light drizzle | 86° / 74° | 56% · 0,1 in | 8 mph | 9 |
| Fri, Sep 25 | ⛈️ Thunderstorm | 80° / 74° | 67% · 0,3 in | 9 mph | 9 |
| Sat, Sep 26 | 🌦️ Light drizzle | 87° / 73° | 61% · 0,1 in | 7 mph | 8 |
| Sun, Sep 27 | 🌦️ Light drizzle | 87° / 74° | 76% · 0,0 in | 7 mph | 5 |
| Mon, Sep 28 | 🌦️ Light drizzle | 85° / 73° | 74% · 0,1 in | 5 mph | 7 |
| Tue, Sep 29 | ⛈️ Thunderstorm | 86° / 73° | 75% · 0,2 in | 6 mph | 9 |
| Wed, Sep 30 | 🌦️ Light drizzle | 85° / 73° | 59% · 0,0 in | 9 mph | 9 |
| Thu, Oct 1 | 🌦️ Light drizzle | 86° / 74° | 30% · 0,0 in | 10 mph | 9 |
| Fri, Oct 2 | ☀️ Clear sky | -- / -- | 39% | -- | — |
What this means for Saint Lucia
Today is about average for September. The forecast high of 85°F is in line with the 86°F typical for this month.
A 57% chance means rain is likely somewhere nearby at some point - carry a layer, but do not cancel.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Within 15 degrees of the equator, day length barely changes all year; seasons are defined by rain, not temperature.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 37°F - an unusually even climate through the year.
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- A packable rain shell - 6 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid June, July and September - historically the least comfortable months here.
See the Saint Lucia forecast by time range
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Frequently asked questions
Where is Saint Lucia?
Saint Lucia is an island in Saint Lucia. Its coordinates are 13.9094, -60.9789. It lies in North America.
What is the weather like in Saint Lucia right now?
It is currently 74°F (24°C) with light drizzle. Humidity is 98% and wind is 7 mph.
When is the best time to visit Saint Lucia?
January, February, March, April, May, June, August, September, October, November and December offer the most comfortable conditions in Saint Lucia, which has a Mediterranean climate. June, July and September are usually the hardest months for outdoor plans.
What time zone is Saint Lucia in?
Saint Lucia observes America/St_Lucia (UTC-04:00). The local time is 1:42 AM.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (islands) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated September 17, 2026 at 1:42 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
