September weather forecastKetajen, Indonesia

Weather in September

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

Temperature

With the transition into September, Ketajen notes an average high-temperature of a still tropical 31.7°C (89.1°F), closely resembling August. Ketajen's average low-temperature in September is measured at a warm 24.4°C (75.9°F).

Heat index

The heat index value for September is computed to be a fiery hot 38°C (100.4°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Heat index specifics point out values are for conditions of shade and a slight breeze. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are largely significant for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The average relative humidity in September is 65%.

Rainfall

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

Daylight

In Ketajen, the average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 05:29 and sunset at 17:28. On the last day of September, sunrise is at 05:13 and sunset at 17:23 WIB.

Sunshine

August through October, with an average of 9.9h of sunshine, are months with the most 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 of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 7 during September leads to these instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.