September weather forecast
Barengkrajan, Indonesia

September, the first month of the spring in Barengkrajan, is still a hot month, with an average temperature fluctuating between 31.7°C (89.1°F) and 24.4°C (75.9°F).

Temperature

The arrival of September brings an average high-temperature of a still hot 31.7°C (89.1°F), subtly diverging from August's 30.8°C (87.4°F). In September, Barengkrajan reports a consistent average low-temperature of 24.4°C (75.9°F) during the nights.

Heat index

During September, the heat index is evaluated at a very hot 38°C (100.4°F). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
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. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In Barengkrajan, the average relative humidity in September is 65%.

Rainfall

In Barengkrajan, Indonesia, in September, it is raining for 4.1 days, with typically 8mm (0.31") of accumulated precipitation. In Barengkrajan, during the entire year, the rain falls for 187.8 days and collects up to 839mm (33.03") of precipitation.

Daylight

In Barengkrajan, the average length of the day in September is 12h and 4min.
On the first day of September, 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 9.9h of sunshine.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: A typical high UV index of 7 in September suggests the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.