Swimming in Singapore in september 2025 Sea temperature by city in september
Do you want to go to the beach in Singapore in september 2025? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in september in Singapore by city and our opinion on the chances of enjoying pleasant sea conditions.
Sea temperature in Singapore in september 2025
Here, find the average sea temperature in Singapore in september in several coastal cities.
86°F
min: 84°F / max: 88°F
85°F
min: 83°F / max: 88°F
86°F
min: 83°F / max: 88°F
85°F
min: 83°F / max: 88°F
Where should you go swimming in Singapore in the month of september?
Swimming in Singapore in september is ideal
In september in Singapore swimming conditions are generally the same everywhere.
In september in Singapore, Jurong East, Pulau Ubin and Sentosa Island, swimming conditions are perfect! With water reaching a maximum of 88°F and an average of 86°F, going in the water (and staying there!) feels great.
Where to go swimming in Singapore in september: the map of sea temperatures
ideal swimming 
pleasant swimming 
cool swimming 
cold swimming 
freezing swimmingWater temperature and seasonal norms in september
Singapore
| September | |||
| Average sea temperature | 86°F | ||
| Minimum sea temperature | 84°F | ||
| Maximum sea temperature | 88°F | ||
| Average outside temperature | 86°F | ||
| Maximum outside temperature | 90°F | ||
| Minimum outside temperature | 83°F | ||
| Precipitation | 7.8in | ||
| Number of days of precipitation | 13 jour(s) (44%) | ||
| Cloud cover | 35% | ||
| Our opinion | ideal swimming |
More information on swimming in Singapore in september
Jurong East
| September | |||
| Average sea temperature | 85°F | ||
| Minimum sea temperature | 83°F | ||
| Maximum sea temperature | 88°F | ||
| Average outside temperature | 86°F | ||
| Maximum outside temperature | 90°F | ||
| Minimum outside temperature | 83°F | ||
| Precipitation | 7.8in | ||
| Number of days of precipitation | 13 jour(s) (44%) | ||
| Cloud cover | 35% | ||
| Our opinion | ideal swimming |
More information on swimming in Jurong East in september
Pulau Ubin
| September | |||
| Average sea temperature | 86°F | ||
| Minimum sea temperature | 83°F | ||
| Maximum sea temperature | 88°F | ||
| Average outside temperature | 86°F | ||
| Maximum outside temperature | 90°F | ||
| Minimum outside temperature | 83°F | ||
| Precipitation | 7.5in | ||
| Number of days of precipitation | 12 jour(s) (41%) | ||
| Cloud cover | 36% | ||
| Our opinion | ideal swimming |
More information on swimming in Pulau Ubin in september
Sentosa Island
| September | |||
| Average sea temperature | 85°F | ||
| Minimum sea temperature | 83°F | ||
| Maximum sea temperature | 88°F | ||
| Average outside temperature | 86°F | ||
| Maximum outside temperature | 90°F | ||
| Minimum outside temperature | 83°F | ||
| Precipitation | 7.8in | ||
| Number of days of precipitation | 13 jour(s) (44%) | ||
| Cloud cover | 35% | ||
| Our opinion | ideal swimming |
More information on swimming in Sentosa Island in september
List of coastal cities in Singapore
| Singapore in september | ideal swimming |
| Jurong East in september | ideal swimming |
| Pulau Ubin in september | ideal swimming |
| Sentosa Island in september | ideal swimming |