September weather forecast
Astanalanggar, Indonesia

The first month of the spring, September, is still a hot month in Astanalanggar, Indonesia, with an average temperature ranging between max 30.7°C (87.3°F) and min 23.5°C (74.3°F).

Temperature

September's arrival registers an average high-temperature of a still tropical 30.7°C (87.3°F), closely aligning with the temperature of the previous month. Astanalanggar encounters an average low-temperature of 23.5°C (74.3°F) during September nights.

Heat index

The heat index value for September is calculated to be a torrid 37°C (98.6°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. 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 extremely significant for babies and toddlers. 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. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in September is 72%.

Rainfall

In Astanalanggar, in September, it is raining for 8.5 days, with typically 25mm (0.98") of accumulated precipitation. Throughout the year, in Astanalanggar, there are 227.1 rainfall days, and 1284mm (50.55") of precipitation is accumulated.

Daylight

The average length of the day in September in Astanalanggar is 12h and 4min.
On the first day of the month, sunrise is at 05:45 and sunset at 17:44. On the last day of September, in Astanalanggar, sunrise is at 05:29 and sunset at 17:39 WIB.

Sunshine

The average sunshine in September in Astanalanggar is 9.6h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Astanalanggar. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 7 in September translates into this advice:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.