September weather forecast
Bayona, Dominican Republic

September, the first month of the autumn in Bayona, is also a hot month, with an average temperature fluctuating between 30.3°C (86.5°F) and 23.2°C (73.8°F).

Temperature

September's onset brings an average high-temperature of a still hot 30.3°C (86.5°F), showing a minute difference from August's 30.5°C (86.9°F). During September, Bayona records a consistent average nighttime temperature of 23.2°C (73.8°F).

Heat index

September's mean heat index is evaluated at a fiery hot 39°C (102.2°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

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

Rainfall

In Bayona, during September, the rain falls for 15.8 days and regularly aggregates up to 47mm (1.85") of precipitation. In Bayona, during the entire year, the rain falls for 168.6 days and collects up to 443mm (17.44") of precipitation.

Daylight

The average length of the day in September in Bayona is 12h and 14min.
On the first day of September, sunrise is at 06:25 and sunset at 18:54. On the last day of the month, sunrise is at 06:30 and sunset at 18:29 AST.

Sunshine

September and November, with an average of 9.4h of sunshine, are months with the most 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 risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily maximum UV index of 7 in September translates into the following instructions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.