September weather forecast
Las Terrenas, Dominican Republic

As Las Terrenas moves into September, the beleaguered rainfall continues to rise, however slightly, to 185mm (7.28"). The sea temperature reaches its zenith at 29°C (84.2°F), presenting the warmest month for aquatic activities. Following this peak, a downward trend is observed in daylight hours, signalling the end of the longer summer days. All these factors maintain the tropical summer climate, albeit hinting at the onset of the cooler months.

Temperature

May through October, with an average high-temperature of 31°C (87.8°F), are marked as the warmest months in Las Terrenas.

Rainfall

In September, the rain falls for 16 days. Throughout September, 185mm (7.28") of precipitation is accumulated. In Las Terrenas, during the entire year, the rain falls for 170 days and collects up to 2128mm (83.78") of precipitation.

Sea temperature

The months with the warmest seawater in Las Terrenas are September and October, with an average sea temperature of 29°C (84.2°F).
Note: With water temperature from 25°C (77°F) to 29°C (84.2°F), all water activities are comfortable and delightful, devoid of discomfort even for lengthened periods.

Daylight

The average length of the day in September is 12h and 14min.
On the first day of September in Las Terrenas, sunrise is at 06:23 and sunset at 18:52. On the last day of the month, sunrise is at 06:28 and sunset at 18:27 AST.

Sunshine

In September, the average sunshine in Las Terrenas is 7h.

UV index

The average daily maximum UV index in September in Las Terrenas is 11. A UV Index estimate of 11, and higher, represents an extreme threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 11 in September converts into the following recommendations:
Enforce all necessary safety measures, unprotected skin may suffer burns swiftly. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Opt for tightly woven and loose clothing to enhance protection from the Sun. A sunscreen boasting a minimum SPF of 30 should be generously applied and reapplied even on cloudy days, post swim or outdoor exercise. Watch out! Sand and water enhance the UV exposure you receive.