September weather forecast
Tuas, Singapore

The arrival of September ushers in the least amount of rainfall for the year at 75mm (2.95") in Tuas. There is a slight decline in temperature, even though the variance is barely noticeable. The amount of sunshine Tuas receives in this month remains the most amongst all months, with an average of 9 sunshine hours. As a farewell to the wet season, September paves the way for drier months ahead in Singapore.

Temperature

The dawn of September sees an average high-temperature of a still tropical 30.7°C (87.3°F), subtly contrasting with August's 30.6°C (87.1°F). Tuas, in September, logs an average low-temperature of 25.8°C (78.4°F), a subtle step down from daytime readings.

Heat index

The heat index in September is computed to be a torrid 38°C (100.4°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. 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 extremely significant for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

In Tuas, the average relative humidity in September is 74%.

Rainfall

The month with the least rainfall in Tuas is September, when the rain falls for 25.4 days and typically collects 75mm (2.95") of precipitation.

Daylight

The average length of the day in September in Tuas, Singapore, is 12h and 7min.
On the first day of the month, sunrise is at 07:01 and sunset at 19:09. On the last day of September, sunrise is at 06:52 and sunset at 18:58 +08.

Sunshine

With an average of 9h of sunshine, September has the most sunshine of the year.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Tuas. The months with the lowest UV index in Tuas are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 7 suggests these recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.