Castara Weather in May
May in Castara averages 29°C (84°F) during the day and 26°C (79°F) at night. Quite a bit of rainfall is typical this month, with around 79 mm (3.1 in) on average. An umbrella is a good idea.
Rainfall in Castara in May
Records from the past 30 years suggest around 17 days of rain, with 79 mm (3.1 in) average for the month. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.
Temperature in Castara in May
The perfect temperature in Castara in May makes it a solid month to visit, with 29°C (84°F) during the day and 26°C (79°F) at night. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights remain warm at around 26°C (79°F). For a more comfortable sleep, a cold shower before bed and a fan or air conditioning can make a big difference.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Trinidad & Tobago, check out our Castara's climate page.
Castara Temperature in May
Min Temperature
26°C (79°F)
Max Temperature
29°C (84°F)
Chance of Rain
56%
Precipitation
79 mm (3.1 in)
Rainy days
17 days
Daily Historical Temperatures
46-year average (1978-2025)
Based on our historical records, temperatures in Castara typically stay consistent throughout May, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in May
Historical weather for Castara in May
Browse day-by-day weather records for Castara spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Castara historical weather extremes in May
Based on weather observations in Castara between 2001 and 2025, these are the recorded extremes during May.
- Castara recorded its highest May temperature of 39°C (102°F) on May 4, 2014.
- On May 28, 2010, Castara saw its coldest May day with temperatures maxing out at 27°C (81°F).
- The coldest night in May in Castara was on May 16, 2021, with a minimum of 21°C (70°F).
Best Places in Trinidad & Tobago in May
Find out more about the weather in Trinidad & Tobago and which places have the best travel conditions in this month. See all of Trinidad & Tobago in May →
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What to Wear in Castara in May
Warm weather calls for comfortable, breathable clothing in May. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Rain is likely on several days, so bring a good rain jacket.What To Do in Castara in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Trinidad & Tobago, check out our Castara's climate page.
See the full Castara climate overview or explore weather in Trinidad & Tobago.
