September weather forecast
Bali, Bhutan

September is characterized by mellowing out of weather parameters, giving an indication of the impending autumn. There is an observable decrease in cloud coverage, translating to more sunshine. Humidity, rainfall, temperature-all undergo a significant drop, signaling the end of the monsoon season. These patterns make it an ideal month for outdoor activities and exploring the city, ensuring an unforgettable time for tourists.

Temperature

Bali notes an average high-temperature of a still hot 32.4°C (90.3°F) in September, displaying minor variation from August. During September, Bali's temperature averages to a moderately hot 24.5°C (76.1°F) at night.

Heat index

The average heat index in September is computed to be a blazing hot 47°C (116.6°F). Prudent: Heat cramps and heat exhaustion are likely. Heatstroke becomes imminent with sustained exertion.
The standards for the heat index are set for locations in shade and under light breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

The average relative humidity in September in Bali, Bhutan, is 82%.

Rainfall

In Bali, Bhutan, in September, during 22.1 rainfall days, 234mm (9.21") of precipitation is typically accumulated. Throughout the year, there are 178 rainfall days, and 1872mm (73.7") of precipitation is accumulated.

Daylight

In Bali, the average length of the day in September is 12h and 19min.
On the first day of September in Bali, sunrise is at 05:36 and sunset at 18:17. On the last day of the month, sunrise is at 05:49 and sunset at 17:44 +06.

Sunshine

In Bali, the average sunshine in September is 7.9h.

UV index

April, May, July through September, with an average maximum UV index of 7, are months with the highest UV index in Bali, Bhutan. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 7 in September interprets into the following advice:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.