September weather forecast
Bekasi, Indonesia

In September, Bekasi ushers in the beginning of the transition period from summer to monsoon. Although the previous month's low precipitation pattern can still be observed with average rainfall at 46mm (1.81"), a slow escalation for the wetter season is noticeable. The weather in early September lingers between sunny days and cool nights. As the days progress, cloud cover begins to increase, with occasional evening showers. The shift from summer is slowly, yet noticeably felt through mild temperature variations.

Temperature

With the advent of September, Bekasi's high-temperatures adjust to a still hot 31.1°C (88°F), closely aligning with the preceding month. During September, the average low-temperature is a moderately hot 25.2°C (77.4°F).

Heat index

September's heat index is computed to be a very hot 37°C (98.6°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In September, the average relative humidity in Bekasi is 68%.

Rainfall

In Bekasi, Indonesia, in September, it is raining for 11.8 days, with typically 46mm (1.81") of accumulated precipitation. Throughout the year, in Bekasi, there are 264.8 rainfall days, and 1580mm (62.2") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 4min.
On the first day of the month, sunrise is at 05:51 and sunset at 17:51. On the last day of September, in Bekasi, sunrise is at 05:36 and sunset at 17:46 WIB.

Sunshine

In Bekasi, the average sunshine in September is 9.6h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Bekasi, Indonesia. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 7 during September leads to these instructions:
Ward off overexposure. Defence against solar harm is crucial. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.