September weather forecast
Bantarjati, Indonesia

The first month of the spring, September, is a tropical month in Bantarjati, Indonesia, with an average temperature ranging between max 30°C (86°F) and min 20.9°C (69.6°F).

Temperature

In Bantarjati, the month of September is known for its highest average temperatures, reaching a high of 30°C (86°F) and a low of 20.9°C (69.6°F).

Heat index

September's mean heat index is estimated at a torrid 36°C (96.8°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

With an average relative humidity of 75%, September is the least humid month.

Rainfall

In Bantarjati, in September, during 17.9 rainfall days, 73mm (2.87") of precipitation is typically accumulated. In Bantarjati, during the entire year, the rain falls for 299 days and collects up to 2315mm (91.14") of precipitation.

Sea temperature

With an average sea temperature of 27.2°C (81°F), September is the month with the coldest seawater.
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and similar water activities, ensuring pleasure and comfort for extended periods without feeling uneasy.

Daylight

The average length of the day in September in Bantarjati is 12h and 4min.
On the first day of September in Bantarjati, sunrise is at 05:53 and sunset at 17:52. On the last day of the month, sunrise is at 05:37 and sunset at 17:47 WIB.

Sunshine

The month with the most sunshine in Bantarjati, Indonesia, is September, with an average of 8.9h of sunshine.

UV index

January through December, with an average maximum UV index of 6, are months with the highest UV index in Bantarjati. The months with the lowest UV index are January through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: The daily maximum UV index of 6 in September interprets into the following advice:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Caution! The reflection of sand and water significantly amplifies the Sun's UV radiation.