September weather forecast
Sukang, Brunei

As September rolls in, Sukang, Brunei, witnesses a slight drop in temperatures, with the range standing between 22.9°C (73.2°F) and 32.9°C (91.2°F). Threshold rainfall decreases further and only 100mm (3.94") gets recorded, creating drier conditions. The humidity levels remain constant, and the wind strength follows suit. Sunshine hours undergo a modest reduction, initiating a transition towards shorter daylight hours. Despite these changes, the general atmospheric conditions remain pleasant.

Temperature

September's onset records a minor alteration in the average high-temperature to a still hot 32.9°C (91.2°F) from August's 33.1°C (91.6°F). Sukang throughout September, experiences an average nighttime temperature of 22.9°C (73.2°F).

Heat index

Throughout September, the heat index is calculated to be a burning hot 47°C (116.6°F). Be careful: Heat exhaustion and heat cramps are probable. Heatstroke may result from extended activity.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The months with the lowest humidity are August and September, with an average relative humidity of 78%.

Rainfall

The month with the least rainfall is September, when the rain falls for 24.1 days and typically collects 100mm (3.94") of precipitation.

Daylight

In Sukang, Brunei, the average length of the day in September is 12h and 8min.
On the first day of September, sunrise is at 06:15 and sunset at 18:27. On the last day of the month, sunrise is at 06:08 and sunset at 18:13 +08.

Sunshine

The month with the most sunshine is September, with an average of 8.7h of sunshine.

UV index

February through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: An average UV index of 7 in September transforms into this advice:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.