September weather forecast
Punta Cana, Dominican Republic

September experiences a slight decrease in temperature, recording a high of 30°C (86°F) and marking the shift towards cooler times. The rainfall also reduces to 79mm (3.11"), and the city enjoys maintaining visibility levels, conducive for outdoor activities. Although the month marks the onset of autumn, sea temperatures remain consistently warm, providing opportunities for water-related ventures. The captivating city of Punta Cana remains a preferred destination for tourists pursuing a sun-filled getaway.

Temperature

September, with average temperatures reaching a high of 30°C (86°F) and a low of 26.3°C (79.3°F), is the warmest month.

Heat index

In September, the heat index is calculated to be a sweltering 37°C (98.6°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Note that heat index values are valued for light wind and location in the shade. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Punta Cana, in September, it is raining for 21.9 days, with typically 79mm (3.11") of accumulated precipitation. Throughout the year, there are 251.4 rainfall days, and 821mm (32.32") of precipitation is accumulated.

Sea temperature

August through October, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater in Punta Cana, Dominican Republic.
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In September, the average length of the day in Punta Cana is 12h and 14min.
On the first day of September, sunrise is at 06:19 and sunset at 18:47. On the last day of the month, sunrise is at 06:24 and sunset at 18:22 AST.

Sunshine

The average sunshine in September in Punta Cana is 9.3h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Punta Cana. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 7 in September translates into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Attention! The combination of sand and water reflections enhances UV ray intensity.