September weather forecast
Keduanan, Indonesia

The first month of the spring, September, is still a hot month in Keduanan, Indonesia, with temperature in the range of an average high of 31.4°C (88.5°F) and an average low of 22.8°C (73°F).

Temperature

The commencement of September brings an average high-temperature of a still tropical 31.4°C (88.5°F), marking an inconsequential divergence from August. Keduanan's average low-temperature in the month of September is recorded at an agreeable 22.8°C (73°F).

Heat index

During September, the heat index is computed to be a very hot 38°C (100.4°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

The months with the lowest humidity in Keduanan are September and October, with an average relative humidity of 69%.

Rainfall

In Keduanan, during September, the rain falls for 9.8 days and regularly aggregates up to 18mm (0.71") of precipitation. In Keduanan, during the entire year, the rain falls for 222.6 days and collects up to 950mm (37.4") of precipitation.

Daylight

In Keduanan, Indonesia, the average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 05:46 and sunset at 17:45. On the last day of September, in Keduanan, sunrise is at 05:31 and sunset at 17:40 WIB.

Sunshine

August and September, with an average of 9.7h of sunshine, are months with the most sunshine in Keduanan.

UV index

The months with the highest UV index in Keduanan, Indonesia, are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Keduanan are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 7 in September translates into the following instructions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.