September weather forecast
Sibu, Malaysia

A shift towards increased rainfall happens in September, setting grounds for the stormy quarter of the year. Gradual warming indicates an annual pattern of rising temperatures, which normally extends into the subsequent month of October. The average high temperature in September is 32.2°C (90°F), a slight drop from August. September is a month with fair temperatures and an increased likelihood of rain, making it an excellent time for indoor activities. Despite the increased probability of rain, the daylight hours remain plentiful.

Temperature

The transition into September notes an average high-temperature of a still tropical 32.2°C (90°F), revealing a mild distinction from the 32.6°C (90.7°F) in August. Throughout September, Sibu anticipates an average low-temperature of 22.7°C (72.9°F).

Rainfall

In Sibu, in September, it is raining for 16 days, with typically 278mm (10.94") of accumulated precipitation. Throughout the year, in Sibu, Malaysia, there are 193 rainfall days, and 3229mm (127.13") of precipitation is accumulated.

Daylight

In Sibu, the average length of the day in September is 12h and 8min.
On the first day of September, sunrise is at 6:27 am and sunset at 6:37 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 6:25 pm +08.

Sunshine

In Sibu, the average sunshine in September is 5h.

UV index

January through May, July through December, with an average maximum UV index of 12, are months with the highest UV index in Sibu. A UV Index estimate of 11, and higher, represents an excessive health risk from unsafe exposure to UV radiation for average individuals.
Note: In September, a daily maximum UV index of 12 leads to the following instructions:
Adopt every vital precaution, unprotected skin and eyes may burn rapidly. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Opt for tightly woven and loose clothing to enhance protection from the Sun. Apply generously and frequently a broad-spectrum SPF 30+ sunscreen every two hours, or immediately after swimming or any outdoor exercise.