Singapore weather in September
Singapore in September averages 28°C (83°F), 124 mm of rain and 5.4 hours of sun a day.
Of the twelve months in Singapore, September is the second driest and the fourth dullest.

- Average temp
- 28°C (83°F)
25–32°C · 77–89°F
- Rainfall
- 124 mm
Showers likely
- Sunshine
- 5.4 h
hours per day
What is Singapore like in September?
Daytime
Days are warm, typically in the mid-20s°C or above.
Rain
Some rain is likely; pack for showers.
Evening
Evenings stay warm.
What should I pack for Singapore in September?
High-factor sun cream
With daytime highs around 32°C, burn time is short even in shade.
Sunglasses and a brimmed hat
Midday glare is the part people underpack for, not the heat itself.
Loose cotton or linen
Synthetics stop working once you are sweating through them all day.
A refillable water bottle
Daily highs this warm need roughly double the water a temperate day does.
A light rain jacket
About 124 mm falls this month — showers rather than washouts.
September compared with August and October
September in Singapore is about the same temperature as August and 25 mm drier than it, which averages 28°C (83°F).
September in Singapore is about the same temperature as October and 43 mm drier than it, which averages 28°C (83°F).
Daylight in Singapore in September
On 15 September the sun is up for 12 hours 7 minutes in Singapore, rising about 06:56 and setting about 19:03 local time.
Where to stay in Singapore
Dates are a starting point for September.

Travel guides for Singapore
What to read before you book.
Singapore weather by month
TemperatureRainfall
How September compares with the rest of the year
September is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 27°C / 81°F | 227 mm |
| February | 28°C / 82°F | 109 mm |
| March | 29°C / 83°F | 151 mm |
| April | 29°C / 84°F | 165 mm |
| May | 29°C / 84°F | 163 mm |
| June | 29°C / 84°F | 139 mm |
| July | 28°C / 83°F | 145 mm |
| August | 28°C / 83°F | 149 mm |
| September | 28°C / 83°F | 124 mm |
| October | 28°C / 83°F | 167 mm |
| November | 28°C / 82°F | 253 mm |
| December | 28°C / 82°F | 329 mm |
Check another month
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FAQs about Singapore in September
September climate averages for Singapore, 1991–2020.
Singapore averages 28°C (83°F) in September, ranging from about 25°C (77°F) at night to 32°C (89°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Some. About 124 mm falls across September, enough to need a light jacket but not enough to reshape a trip.
They are about the same. September averages 28°C (83°F) and October 28°C (83°F), so temperature alone will not decide between them.
September is about as warm as August, and 25 mm drier.
Yes. September falls inside the most comfortable stretch of the year here, June to September, on temperature and rainfall together.
About 5.4 hours of sun a day on the 1991–2020 average.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what September is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 12 hours 7 minutes of daylight in mid-September, against 12 hours 12 minutes in June and 12 hours 3 minutes in January.
On 15 September, sunrise is about 06:56 and sunset about 19:03 local time. Both shift across the month.


