Singapore's Weather in September

September's weather is fairly average for Singapore. This is not an extreme month for the amount of sun, storms, rain, wind and heat.

This page gives detailed information on the typical September weather for Singapore. There are data and descriptions for temperature, rain, sun, humidity, wind and storms.

The numbers here are long-term historical averages based on climate data gathered from 1991 to 2020.

Temperature Weather iconTemperature

89 °F September average high 32 °C
77 °F September average low 25 °C

Daytime temperatures at Singapore usually go no higher than 94 degrees Fahrenheit (34 degrees Celsius).

Nighttime temperatures only rarely get as low as 69 °F (21 °C).

Rainy Weather iconRain

4.9 in total precipitation 125 mm
13 days of rain

Singapore's total amount of rain for September has varied over the years from 17 inches (440 mm) to less than an inch (24 mm).

Usually the day's heaviest rainfall this time of year occurs around 2 pm.

Sunny Weather iconSun

44 % sunshine
161 hours of sun

Sunlight in September at Singapore lasts for 12 hours and 7 minutes a day on average. That amounts to 364 hours of daylight for the month.

Humid Weather iconHumidity

81 % September average humidity

The relative humidity in Singapore during September ranges throughout the day from an average maximum of 94 percent to an average minimum of 62 percent.

Windy Weather iconWind

4.7 mph September wind speed average 7.6 kph

September is an average month for wind speed at Singapore.

Stormy Weather iconStorms

14 days with thunder in September
12 days with lightning

Reference

Meteorological Service Singapore. Climate of Singapore.

WMO Climate Normals. Station Data Files. Pacific (RA-V). Singapore. Index of /archive/arc0216/0253808/1.1/data/0-data/Region-5-WMO-Normals-9120/Singapore.

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