September weather forecast
Jimani, Dominican Republic

September transitions into a milder version of the preceding summer months. The warmth of the city segues from the sweltering highs of the summer towards a softer, yet noticeable tropical heat. There's reescalation in average rainfall from 111mm (4.37") in August to 135mm (5.31"). The number of clear sunny days declines in alignment with the broader theme of transitioning weather. September through its shifting identities marks the end of the comforting languid summer season and a return to the impending tropical showers.

Temperature

The start of September marks an average high-temperature of a warm 29.8°C (85.6°F), hardly distinguishable from the conditions in August. Throughout September, Jimani encounters an average temperature drop to an agreeable 21.3°C (70.3°F).

Heat index

In September, the heat index is appraised at a sweltering 36°C (96.8°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

The average relative humidity in September is 77%.

Rainfall

In Jimani, in September, during 22.4 rainfall days, 135mm (5.31") of precipitation is typically accumulated. In Jimani, during the entire year, the rain falls for 227.4 days and collects up to 904mm (35.59") of precipitation.

Daylight

In September, the average length of the day is 12h and 14min.
On the first day of September, sunrise is at 06:32 and sunset at 19:01. On the last day of the month, sunrise is at 06:37 and sunset at 18:36 AST.

Sunshine

The average sunshine in September is 9.6h.

UV index

January through May, July through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: An average UV index of 6 in September transforms into this advice:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.