Trinidad and Tobago in August: Weather, Crowds & What to Expect
Climate Map for August
Average temperature across Trinidad and Tobago in August.
City Weather in August
| City | High | Low | Rain | UV | Feels |
|---|---|---|---|---|---|
| Chaguanas | 31° | 23° | 190 mm | extreme | Hot |
| Mon Repos | 31° | 23° | 82 mm | extreme | Hot |
| San Fernando, Trinidad and Tobago | 31° | 23° | 192 mm | extreme | Hot |
| Port of Spain | 31° | 23° | 89 mm | extreme | Hot |
| Rio Claro, Trinidad and Tobago | 30° | 23° | 237 mm | extreme | Warm |
| Arima | 31° | 23° | 85 mm | extreme | Warm |
| Marabella | 31° | 23° | 76 mm | extreme | Hot |
High / low are average daily temperatures (°C). “Feels” reflects how hot or cold it feels, allowing for humidity.
Northern Trinidad - Port of Spain & the Northern Range
Deep into the wet season, August often delivers long rainy spells and occasional thunderstorms that can close higher trails on the Northern Range. Rivers swell quickly after downpours; crossings on more remote trails like the Arima Blanchisseuse ridge can become hazardous. If you want the cooler mountain air with fewer tourists, bring waterproof hiking boots and plan for flexible itineraries.
Central Trinidad & Caroni Lowlands (Chaguanas, Arima, Caroni Swamp)
Frequent summer storms in August keep the central plains lush and green; expect river creeks and roadside drains to swell quickly after heavy rain. Ferry and small-boat operators may be cautious in choppy weather, so swamp and river trips sometimes run on shorter schedules. This is a good month for visiting indoor cultural sites or attending community events - bring quick-dry clothes and reliable rain protection.
Southern & Western Trinidad - San Fernando, La Brea & Gulf of Paria
Late summer rains in August keep the southern plains green; expect long, soaking showers and a rise in biting insects in the mangrove fringes near the Gulf. Boat travel and small ferries from southern ports can be canceled on unsettled days, so book with flexibility. This time suits travelers who don’t mind damp conditions and want to avoid peak-season prices.
East Coast & Windward Coast - Toco, Manzanilla, Grande Riviere
August continues the wet pattern with strong seasonal rains and high humidity; river crossings to remote nesting sites can be challenging and require experienced guides. The sea is frequently choppier, so dive and snorkel options on the east are limited compared with calmer months. Travelers comfortable with rustic, wet conditions will find active conservation projects and dramatic raw coastline scenery.
Tobago - Southwest & Leeward Beaches (Scarborough, Crown Point, Pigeon Point, Buccoo)
Late-summer August brings frequent short, heavy showers and overcast mornings, but the sheltered bays off Crown Point still offer reasonable snorkeling windows between storms. The island is green and less flurried with tourists; road access to quieter beaches is sometimes slow after heavy rain. Take mosquito repellent, waterproof daypacks, and flexibility with boat schedules if diving is on your agenda.
Tobago - Northeast & Main Ridge (Speyside, Charlotteville, Main Ridge Forest Reserve)
August’s rains keep the Main Ridge damp and green, and the Atlantic-facing coves are regularly rough; dive visibility becomes more variable with plankton blooms after heavy rains. Boat operators choose sheltered windows for trips, so multi-day bookings are wise if diving is essential. This month suits travelers who value solitude, birding and exploring the island’s quieter, more forested side.