September weather forecast
Calderón, Dominican Republic

September, the first month of the autumn in Calderón, is still a tropical month, with an average temperature ranging between min 23.2°C (73.8°F) and max 30.3°C (86.5°F).

Temperature

Calderón's weather in September displays an average high-temperature of a still hot 30.3°C (86.5°F), showing minor disparity from August's 30.5°C (86.9°F). An average low-temperature of 23.2°C (73.8°F) marks the month of September.

Heat index

In September, the average heat index is estimated at a fiery hot 39°C (102.2°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The months with the highest humidity are September through December, with an average relative humidity of 81%.

Rainfall

In Calderón, in September, during 15.8 rainfall days, 47mm (1.85") of precipitation is typically accumulated. In Calderón, during the entire year, the rain falls for 168.6 days and collects up to 443mm (17.44") of precipitation.

Daylight

In Calderón, the average length of the day in September is 12h and 14min.
On the first day of the month, sunrise is at 06:26 and sunset at 18:55. On the last day of September, sunrise is at 06:31 and sunset at 18:30 AST.

Sunshine

The months with the most sunshine are September and November, with an average of 9.4h of sunshine.

UV index

May through July, September and October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 7 in September translates into this advice:
Inhibit overexposure. Warding off sun damage is of utmost importance. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.