Singapore in September

Haze risk in some years; check the PSI before long outdoor plans.

September is rated mixed. These months rate higher:

• FebruaryGreatDriest month; Chinese New Year (6–7 Feb 2027) closes stalls for a few days and fills flights.
• MarchGreatDry and hot; Hari Raya Puasa bazaars in 2027 — check dates.
• AprilGreatInter-monsoon: hot, with afternoon thunderstorms; mornings clear.
• NovemberGoodWetter start of the northeast monsoon; Deepavali (8 Nov 2026) lights Little India.

• Singapore Island · The whole island, Sentosa, Pulau Ubinsmoke haze

  Equatorial: 25–33 °C (77–91 °F) every month. Northeast monsoon Dec–Mar, wettest Nov–Jan with long rainy spells; February is the driest month. Southwest monsoon Jun–Sep is drier, with dawn squalls and haze risk Aug–Oct when fires burn in Sumatra and Borneo. April–May and Oct–Nov bring afternoon thunderstorms.Equatorial: 77–91 °F (25–33 °C) every month. Northeast monsoon Dec–Mar, wettest Nov–Jan with long rainy spells; February is the driest month. Southwest monsoon Jun–Sep is drier, with dawn squalls and haze risk Aug–Oct when fires burn in Sumatra and Borneo. April–May and Oct–Nov bring afternoon thunderstorms.

• Riau Islands and Johor (day trips) · Batam, Bintan, Johor Bahrusmoke haze

  Same weather as Singapore; northeast-monsoon seas Dec–Feb make the Bintan ferry rough and the beaches on Bintan's north coast unswimmable some days.

• Singapore city31 °C (88 °F) / 25 °C (77 °F), 14 rain days88 °F (31 °C) / 77 °F (25 °C), 14 rain days

Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.

• Hungry Ghost Festival check

  7th lunar month · Singapore city

  Offerings burnt at roadside bins, street stages for getai concerts at night.

• Mid-Autumn Festival check

  15th of the 8th lunar month · Singapore city

  Lanterns over Chinatown streets and a lantern display in the gardens; mooncakes everywhere.

• Formula 1 night race check

  One weekend in September or October (check the year) · Singapore city

  Roads, bridges and paths around the Padang and the bay close for a week; hotel rates double.

Crowds · Singapore

Medium

Prices · Singapore

Medium

Weather, crowds and prices for any two months in Singapore, side by side.

Nothing unusual for the weather this month.

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