September weather forecastRejeni, Indonesia

Weather in September

September, the first month of the spring in Rejeni, is also a hot month, with an average temperature varying between 33.9°C (93°F) and 22.5°C (72.5°F).

Temperature

Rejeni experiences an average high-temperature of a still hot 33.9°C (93°F) with the onset of September, subtly varied from August's 32.3°C (90.1°F). Throughout September, the temperature tends to fall to a consistent average low of 22.5°C (72.5°F).

Heat index

The heat index value during September is appraised at an extremely hot 43°C (109.4°F). Mind: Heat cramps along with heat exhaustion are anticipated. Heatstroke can develop with continued physical activity.
The heat index's values are generally associated with conditions in shade and light breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

The months with the lowest humidity are September and October, with an average relative humidity of 62%.

Rainfall

In Rejeni, in September, during 5.4 rainfall days, 11mm (0.43") of precipitation is typically accumulated. Throughout the year, in Rejeni, there are 218.3 rainfall days, and 1409mm (55.47") of precipitation is accumulated.

Daylight

In September, the average length of the day in Rejeni is 12h and 4min.
On the first day of September in Rejeni, sunrise is at 05:30 and sunset at 17:28. On the last day of the month, sunrise is at 05:14 and sunset at 17:24 WIB.

Sunshine

The months with the most sunshine are August through October, with an average of 9.7h of sunshine.

UV index

February, April through December, with an average maximum UV index of 7, are months with the highest UV index in Rejeni. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A typical high UV index of 7 in September suggests the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.