Tomorrow's Weather Forecast - Singapore

Tomorrow's weather in Singapore. high 30°C (86°F), low 25°C (77°F). Drizzle.

Tomorrow’s Outlook

Tomorrow brings a similar temperature to today. Expect heavy rain in the afternoon, with rain chances climbing as high as 81%. That risk lines up with humidity averaging 83% through the day the more moisture in the air, the more readily clouds build into showers. Humidity stays high near 83%, so it will feel muggier and stickier than the temperature alone suggests. A light breeze near 14 km/h is expected. Sunrise is at 6:57 AM and sunset at 7:04 PM, for about 12h 7m of daylight.

Tomorrow
30°/ 25°
Today29° / 25°

Tomorrow’s Hourly Weather Outlook

Morning6 AM – Noon27°
Rain probability
45%
Wind speed
14 km/h
AfternoonNoon – 6 PM30°
Rain probability
81%
Wind speed
12 km/h
Evening6 PM – Midn28°
Rain probability
46%
Wind speed
11 km/h
NightMidn – 6 AM25°
Rain probability
18%
Wind speed
7 km/h

24-Hour Rain & Temperature Forecast

Tomorrow12 Sep
··
0:00
1:00
2:00
3:00
4:00
5:00
6:00
7:00
8:00
9:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00

Temperature · peaks at +30°C

Planning Advice for Tomorrow

Clothing
Waterproof jacket and umbrella strongly recommended.
Outdoor
Not ideal for outdoor plans or car washes — heavy rain expected.
Travel
Expect traffic slowdowns from wet roads. Allow extra time.

Sunrise & Sunset

Sunrise
Dawn 6:27 AM
Total Daylight
Full day forecastSolar noon 1:00 PM
Sunset
Dusk 7:34 PM
vs today0 min daylight
Sunrise shiftSame time
Sunset shiftSame time

5-Day Weather Forecast

Full 15-Day Forecast

Weather Insight

Singapore is forecast to reach a high of 30°C tomorrow, with an overnight low around 25°C. That's 1° above the long-term average high of 29°C for this time of year. It continues a recent pattern — 28 of the last 28 days with published data have run warmer than normal. Expect a high chance of rain (81% probability) and a gentle breeze averaging 14 km/h. Air quality is currently Moderate (AQI 86), driven mainly by PM2.5 at 25 μg/m³.

Today vs Normal

29°C0° below normal

The long-term average high for today is 29°C.

28 of the last 28 days with published data ran above normal.

That's a break from the pattern - today's forecast runs below normal even though the recent stretch mostly ran above.

2026-08-28: 30°C30°2026-08-29: 32°C32°2026-08-30: 31°C31°2026-08-31: 31°C31°2026-09-01: 32°C32°2026-09-02: 32°C32°2026-09-03: 32°C32°2026-09-04: 31°C31°2026-09-05: 31°C31°2026-09-06: 32°C32°2026-09-07: 32°C32°2026-09-08: 32°C32°

Red = above normal, blue = at or below · last 12 days

Air Quality

Air Quality
Moderate

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.