September weather forecast
Gumulung Lebak, Indonesia

The first month of the spring, September, is a hot month in Gumulung Lebak, Indonesia, with temperature in the range of an average high of 30.6°C (87.1°F) and an average low of 22.6°C (72.7°F).

Temperature

As Gumulung Lebak transitions into September, the average high-temperature stands at a hot 30.6°C (87.1°F), offering little variation from the preceding month. September nights are marked by an average low-temperature of 22.6°C (72.7°F).

Heat index

The heat index for September is computed to be a very hot 37°C (98.6°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Consider that heat index readings are for situations in the shade and light wind. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. 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 body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

September and October, with an average relative humidity of 71%, are the least humid months.

Rainfall

In Gumulung Lebak, in September, it is raining for 10.7 days, with typically 22mm (0.87") of accumulated precipitation. Throughout the year, in Gumulung Lebak, there are 244.1 rainfall days, and 1216mm (47.87") of precipitation is accumulated.

Daylight

In Gumulung Lebak, the average length of the day in September is 12h and 4min.
On the first day of September, sunrise is at 05:46 and sunset at 17:45. On the last day of the month, sunrise is at 05:30 and sunset at 17:40 WIB.

Sunshine

July through September, with an average of 9.7h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. 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 unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, a daily UV index of 7 turns into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.