September weather forecast
Mertapada Kulon, Indonesia

September, the first month of the spring in Mertapada Kulon, is a tropical month, with an average temperature ranging between min 22.6°C (72.7°F) and max 30.6°C (87.1°F).

Temperature

The arrival of September sees a recorded average high-temperature of a tropical 30.6°C (87.1°F), showing little divergence from the previous month's conditions. During September, an average low-temperature of 22.6°C (72.7°F) is observed.

Heat index

For September, the heat index is calculated to be a sweltering 37°C (98.6°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
The standards for the heat index are set for locations in shade and under light breezes. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

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

Rainfall

In Mertapada Kulon, during September, the rain falls for 10.7 days and regularly aggregates up to 22mm (0.87") of precipitation. Throughout the year, in Mertapada Kulon, there are 244.1 rainfall days, and 1216mm (47.87") of precipitation is accumulated.

Daylight

The average length of the day in September in Mertapada Kulon 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, 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 in Mertapada Kulon are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Mertapada Kulon are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 7 in September transforms into the following instructions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.