Our verdict
The best time to visit Saint Lucia is June-September
In summer, the average maximum temperature is around 27℃ (81℉), but temperatures can sometimes reach as high as 28℃ (82℉) on the hottest days of the year. In the colder months such as July, temperatures usually get down to an average minimum of 18℃ (65℉).
If you’re keen to see the sights of Saint Lucia during the day, the sun stays up the longest around March. December sees the most amount of rain in a month if you’re ok with chancing getting drenched, so if you’re looking to stay dry, visit in June instead.
Keep reading to find all the info you need (and none of the stuff you don’t) about the best times to go to Saint Lucia. By the time you get to the bottom, you’ll be ready to start booking your trip.
Quick links: Fast facts / Seasons / Average temperatures / Monthly climate / FAQs / Map
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Saint Lucia seasons
Before you continue, it’s important to know when the seasons are in Saint Lucia as they might be different to yours depending on where in the world you’re travelling from. Saint Lucia is in the Southern Hemisphere, so the seasons fall during these months:
| Season | Months |
|---|---|
| Summer | December to February |
| Autumn/fall | March to May |
| Winter | June to August |
| Spring | September to November |
Average temperatures in Saint Lucia
If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Saint Lucia for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.
Saint Lucia climate by month
If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Saint Lucia for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.
Jump to:
Saint Lucia in January
- Average temperature: 25℃ (77℉)
- Average high temperature: 27℃ (80℉)
- Average low temperature: 24℃ (74℉)
- Average humidity: 79%
- Average sunny days: 7 days
- Average rainfall: 87mm (3") over 22 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Saint Lucia in January, make sure you pack t-shirts and light clothing.
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Saint Lucia in February
- Average temperature: 26℃ (78℉)
- Average high temperature: 27℃ (81℉)
- Average low temperature: 24℃ (75℉)
- Average humidity: 78%
- Average sunny days: 8 days
- Average rainfall: 85mm (3") over 18 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Saint Lucia in February, make sure you pack t-shirts and light clothing.
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Saint Lucia in March
- Average temperature: 25℃ (77℉)
- Average high temperature: 27℃ (80℉)
- Average low temperature: 23℃ (74℉)
- Average humidity: 78%
- Average sunny days: 8 days
- Average rainfall: 77mm (3") over 19 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Saint Lucia in March, make sure you pack t-shirts and light clothing.
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Saint Lucia in April
- Average temperature: 23℃ (74℉)
- Average high temperature: 25℃ (77℉)
- Average low temperature: 21℃ (71℉)
- Average humidity: 75%
- Average sunny days: 11 days
- Average rainfall: 55mm (2") over 17 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Saint Lucia in April, make sure you pack t-shirts and light clothing.
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Saint Lucia in May
- Average temperature: 22℃ (72℉)
- Average high temperature: 24℃ (76℉)
- Average low temperature: 20℃ (69℉)
- Average humidity: 74%
- Average sunny days: 16 days
- Average rainfall: 43mm (2") over 13 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Saint Lucia in May, make sure you pack t-shirts and light clothing.
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Saint Lucia in June
- Average temperature: 21℃ (70℉)
- Average high temperature: 23℃ (73℉)
- Average low temperature: 19℃ (66℉)
- Average humidity: 68%
- Average sunny days: 18 days
- Average rainfall: 23mm (1") over 9 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Saint Lucia in June, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Saint Lucia in July
- Average temperature: 20℃ (68℉)
- Average high temperature: 22℃ (72℉)
- Average low temperature: 18℃ (65℉)
- Average humidity: 70%
- Average sunny days: 17 days
- Average rainfall: 25mm (1") over 11 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Saint Lucia in July, make sure you pack a light jumper or hoodie for the evenings and some light clothes for the daytime.
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Saint Lucia in August
- Average temperature: 21℃ (69℉)
- Average high temperature: 23℃ (73℉)
- Average low temperature: 19℃ (65℉)
- Average humidity: 71%
- Average sunny days: 17 days
- Average rainfall: 27mm (1") over 11 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Saint Lucia in August, make sure you pack a light jumper or hoodie for the evenings and some light clothes for the daytime.
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Saint Lucia in September
- Average temperature: 21℃ (70℉)
- Average high temperature: 23℃ (74℉)
- Average low temperature: 19℃ (67℉)
- Average humidity: 74%
- Average sunny days: 14 days
- Average rainfall: 31mm (1") over 13 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Saint Lucia in September, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
Saint Lucia in October
- Average temperature: 22℃ (71℉)
- Average high temperature: 23℃ (74℉)
- Average low temperature: 20℃ (68℉)
- Average humidity: 77%
- Average sunny days: 9 days
- Average rainfall: 60mm (2") over 19 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Saint Lucia in October, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Saint Lucia in November
- Average temperature: 23℃ (73℉)
- Average high temperature: 24℃ (76℉)
- Average low temperature: 21℃ (70℉)
- Average humidity: 78%
- Average sunny days: 6 days
- Average rainfall: 89mm (4") over 21 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Saint Lucia in November, make sure you pack t-shirts and light clothing.
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Saint Lucia in December
- Average temperature: 24℃ (75℉)
- Average high temperature: 26℃ (78℉)
- Average low temperature: 22℃ (72℉)
- Average humidity: 80%
- Average sunny days: 7 days
- Average rainfall: 90mm (4") over 22 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Saint Lucia in December, make sure you pack t-shirts and light clothing.
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