August is in the heart of the Caribbean wet and hurricane season; heavy rain and occasional storm systems can occur. Tourist numbers are low compared with the dry season and many hotels run promotions. Monitor tropical weather forecasts if traveling now.
Average daily low and high (°C) and monthly rainfall. The badge shows how it feels, allowing for humidity.
Temperature map
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Average temperature across Saint Lucia in August.
Where to Go in Saint Lucia in August
North Coast & Rodney Bay
Castries, Gros Islet, Pigeon Island, Cap Estate
August is hot and humid with frequent heavy showers and an elevated hurricane risk as the Atlantic season peaks; however, many days are still sun-dappled between storms, and the north coast’s breezes help keep conditions workable. Sailing schedules may be disrupted by rough seas; if you plan boat trips, allow flexibility and check marine advisories. Expect fewer international tourists compared with winter, so you can find lower rates and quieter marinas when the weather cooperates.
By August the western coast sees frequent cloudbursts and the highest seasonal sea-swell risk; many travelers avoid the island during the hurricane peak, but on calmer days diving remains rewarding around the protected marine reserve. If you’re staying in Soufrière, check cancellation policies for volcano and boat tours and always have a dry-bag for electronics. Reduced crowds mean lower accommodation prices if you’re willing to be flexible with your plans.
Central Highlands & Rainforest
Mount Gimie, Tet Paul, interior trails and waterfalls
August in the interior is warm and wet with occasional heavy downpours that swell rivers and make for dramatic waterfall displays - excellent for photographers though trickier for hikers. Trail maintenance varies, so choose well-marked routes with local guides and avoid river crossings after storms. Bring a dry bag for electronics, long sleeves for insects, and accept that views may be cloud-obscured on many days.
August often brings frequent heavy showers and the highest seasonal storm risk - the east coast picks up the brunt of passing squalls and larger ocean swells. Many travelers avoid this month, but those who come find quiet beaches and reduced prices; always check forecasts before heading to more remote coastlines. A waterproof daypack, flexible itineraries, and refundable accommodations are wise in August.
Events & Festivals in August
There are no major festivals or events in Saint Lucia during August to be aware of.
Planning a trip to Saint Lucia?
See how August compares with the rest of the year, then read the full guide.
