September weather forecastMantenan, Indonesia

Weather in September

The first month of the spring, September, is a tropical month in Mantenan, Indonesia, with temperature in the range of an average high of 30.3°C (86.5°F) and an average low of 21.5°C (70.7°F).

Temperature

The start of September marks an average high-temperature of a hot 30.3°C (86.5°F), hardly distinguishable from the conditions in August. An average temperature of 21.5°C (70.7°F) marks the nights in September.

Heat index

Throughout September, the heat index is computed to be a torrid 37°C (98.6°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

September and October, with an average relative humidity of 75%, are the least humid months.

Rainfall

In Mantenan, in September, during 13.1 rainfall days, 38mm (1.5") of precipitation is typically accumulated. In Mantenan, during the entire year, the rain falls for 247.2 days and collects up to 1234mm (48.58") of precipitation.

Daylight

In Mantenan, the average length of the day in September is 12h and 4min.
On the first day of September, sunrise is at 05:40 and sunset at 17:38. On the last day of the month, sunrise is at 05:24 and sunset at 17:34 WIB.

Sunshine

In Mantenan, the average sunshine in September is 9.1h.

UV index

February, September and October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 7 in September leads to these recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.