10-day outlook

Meteorological Service Singapore publishes four days. Anything past that is climate, not a forecast of those dates. If an app shows a 10-day with rain percentages for next Thursday, it is guessing.

Official 4-day forecast

Sunday

11 Oct 2026

Thundery Showers

25°C 34°C

Monday

12 Oct 2026

Thundery Showers

25°C 34°C

Tuesday

13 Oct 2026

Thundery Showers

25°C 34°C

Wednesday

14 Oct 2026

Thundery Showers

25°C 34°C

Full write-up on the 4-day page.

Days 5-10 are climate, not a forecast

The next ten days fall in October. These numbers are 1991-2020 Changi normals. They describe the month, not next Wednesday.

October

Inter-monsoon

168.3 mm rain, 15 rain days, mean 27.9°C.

Winds turn light and variable. Afternoon and evening thunderstorms pick up again as the ITCZ returns north.

October climate page

Forecast confidence

Days 1-4: treat as the official forecast. Days 5-7: pattern only. Days 8-10: the month's climate is the honest answer.

Monthly rainfall at Changi

1991-2020 normals. December is more than three times as wet as February.

Values in millimetres. Source: Meteorological Service Singapore.

Grey monsoon rain over tropical housing
A wet December day is usually a surge, not a 30-minute thunderstorm. Climate tells you which kind of rain to expect. Radar tells you if it is happening.

Related

2-hour nowcast

24-hour forecast

4-day outlook

Climate normals