The hottest month in Las Terrenas is September when the average maximum temperature is 32°, average temperature is 28° and average minimum temperature is 25°.
The coolest month in Las Terrenas is January when the average maximum temperature is 28°, average temperature is 25° and average minimum temperature is 22°.
The longest days in Las Terrenas are in June, with an average of 13.2 hours of daylight per day. December has the shortest days with an average of 11 hours of daylight per day.
The sunniest days in Las Terrenas are in September which has the most hours of sunshine per day with an average of 8.4 hours of sunshine per day, making it a sunny month with few clouds. December has the least sunshine with an average of 5.7 hours of sunshine per day, making it a sunny month that is overcast at times.
The ultraviolet index is the highest in April when it reaches 13.5 and lowest in December when it reaches 7.4.
An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.
The warmest sea water temperatures in Las Terrenas are found in September when they peak at 29° and lowest in February when they dip to 26°.
The sea is excellent for swimming all year round as the water temperature is very warm and ideal for relaxing and swimming for the whole day.
The wettest month in Las Terrenas is October with 1.6cm of rain and May has the most days of rain with 11.6 days with some rain, a slightly wet time to visit the beach.
The driest month in Las Terrenas is January with 0cm of rain and March has the fewest days of rain with 6.8 days with some rain, a dry time to visit the beach.
The most humid month in Las Terrenas is September with a dew point (an indicator of humidity) of 26° which is very uncomfortable and fairly oppressive unless you are on a beach. At night you would most likely require airconditioning.
The least humid month in Las Terrenas is March with a dew point of 23° which is very humid and quite uncomfortable for most unless you are on a beach. At night you would most likely require a fan.
The most windy month in Las Terrenas is July when the average maximum windspeed is 26kmh and the average wind speed is 14kmh.
The least windy month in Las Terrenas is October when the average maximum windspeed is 22kmh and the average wind speed is 10kmh.