September weather forecast
Nuevo San Juan, Panama

The first month of the autumn, September, is also a moderately hot month in Nuevo San Juan, Panama, with an average temperature ranging between max 29.1°C (84.4°F) and min 24.1°C (75.4°F).

Temperature

September is marked by an average high-temperature of a still moderately hot 29.1°C (84.4°F), almost identical to the preceding month. In September, Nuevo San Juan's nights cool slightly to a consistent average temperature of 24.1°C (75.4°F).

Heat index

During September, the heat index is estimated at a sweltering 36°C (96.8°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. 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 meaningful for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In September, the average relative humidity is 86%.

Rainfall

In Nuevo San Juan, in September, it is raining for 24.4 days, with typically 161mm (6.34") of accumulated precipitation. Throughout the year, there are 282 rainfall days, and 1912mm (75.28") of precipitation is accumulated.

Daylight

The average length of the day in September in Nuevo San Juan is 12h and 10min.
On the first day of the month, sunrise is at 06:09 and sunset at 18:27. On the last day of September, in Nuevo San Juan, Panama, sunrise is at 06:07 and sunset at 18:09 EST.

Sunshine

In September, the average sunshine is 7.9h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Nuevo San Juan. The months with the lowest UV index in Nuevo San Juan, Panama, are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 7 during September translates into the following guidance:
Take precautions against overexposure. Protection against sun damage is needed. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.