Island, Saint Lucia
Saint Lucia weather by month and the best time to visit
When to go to Saint Lucia
Dec–Apr is the dry, sunny peak season. Jun–Nov is wet and hot, with hurricane risk Aug–Oct; Carnival is in July.
Saint Lucia weather by month
Average daily high, rainfall and conditions.
- Jan27°68 mm
- Feb26°44 mm
- Mar27°48 mm
- Apr27°97 mm
- May28°102 mm
- Jun28°136 mm
- Jul28°154 mm
- Aug29°179 mm
- Sep29°182 mm
- Oct28°189 mm
- Nov28°159 mm
- Dec27°85 mm
Monthly averages
| Month | High | Low | Rain | Humidity | Conditions |
|---|---|---|---|---|---|
| January | 27°C80°F | 25°C78°F | 68 mm | 76% | Pleasant |
| February | 26°C80°F | 25°C77°F | 44 mm | 74% | Pleasant |
| March | 27°C80°F | 25°C77°F | 48 mm | 75% | Pleasant |
| April | 27°C81°F | 26°C78°F | 97 mm | 76% | Pleasant |
| May | 28°C82°F | 26°C80°F | 102 mm | 77% | Pleasant |
| June | 28°C83°F | 27°C80°F | 136 mm | 78% | Pleasant |
| July | 28°C83°F | 27°C81°F | 154 mm | 79% | Pleasant |
| August | 29°C83°F | 27°C81°F | 179 mm | 79% | Rainy |
| September | 29°C84°F | 28°C82°F | 182 mm | 78% | Rainy |
| October | 28°C83°F | 28°C82°F | 189 mm | 79% | Rainy |
| November | 28°C82°F | 27°C81°F | 159 mm | 79% | Pleasant |
| December | 27°C81°F | 26°C79°F | 85 mm | 77% | Pleasant |
Quick answers
What is the best month to visit Saint Lucia?
Dec–Apr. Dec–Apr is the dry, sunny peak season. Jun–Nov is wet and hot, with hurricane risk Aug–Oct; Carnival is in July.
When is the rainy season in Saint Lucia?
Rain peaks in October with about 189 mm. Months with 150 mm or more: Jul–Nov.
What is the hottest month in Saint Lucia?
September, with average highs of 29°C (84°F).
How cold does Saint Lucia get?
The coolest nights are in February, averaging 25°C (77°F).
More about Saint Lucia
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Sources
Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.