Singapore (SG) weather in October

October in Singapore: sweltering, soaked, with muggy air — a gamble, with 26 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Singapore🇸🇬 Singapore · Malaysia, Singapore & Sumatra · City52
  1. 54Jan
  2. 69Feb
  3. 57Mar
  4. 51Apr
  5. 53May
  6. 58Jun
  7. 64Jul
  8. 61Aug
  9. 60Sep
  10. 52Oct
  11. 46Nov
  12. 51Dec

#9 of 12 months in Singapore · #1279 of 1413 destinations to visit in October · comfort 52/100 (tier D)

Days
31°C
Nights
26°C
Wet days
26
Sun
9 h
Humidity
83%
Daylight
12 h
Singapore, Singapore
Photo: Mark Baldovino · Pexels

What October is like in Singapore

The rains return, and Deepavali (movable, October or November) lights Little India for several weeks.

festivalmonsoon

confidence: high

Traveller notes on Singapore in October

Other months in Singapore

Regulars describe rain here as short, sharp showers or thunderstorms, often just once a day and some days not at all, rather than a sustained soak - a genuinely good month overall despite the wet-sounding statistics. Our row backs the real wetness behind that framing, 228.1mm of rain across a striking 23.6 days, alongside intense heat, 31.3C reading as a hot 37C at 82 percent humidity, over 25.4C nights. Regulars specifically flag haze, driven by seasonal burning further south, as the one real health-relevant caveat worth checking before a trip, though this month itself is called a low-risk window for it. The sea holds a warm 27.7C. The record: 10.1 hours of sun, a 12.9 kph wind and AQI 59.
SharpShowerThenClearsUpQuickly · March · 1 month ago · Read more on Tripadvisor ↗
One regular puts the humidity better than any column can: a 31C day here is more uncomfortable than a 42C day in a dry country. Our feels-like agrees, turning 30.7C into 37C at 82 percent humidity. June sits in the south-west monsoon, which they describe as showers and thunderstorms from before dawn to midday and again in the late afternoon, rarely lasting half an hour. That is what our 209.1mm across 26.1 days actually means - rain touches almost every day and stops almost every time. Nights hold 25.7C and the sea is 30.2C. Carry the umbrella, plan the indoor half, and do not trust a gap in the cloud. The record: 9 hours of sun and AQI 58.
ThirtyOneFeelsLikeFortyTwo · June · 1 month ago · Read more on Tripadvisor ↗
Singapore-forum threads on September flag two separate risks that don't always coincide: the regular short, scattered showers that clear fast, and the haze that can drift in from Indonesian burning between August and October in a bad year - worth checking a live index rather than assuming either. Crowds are called manageable outside the Mid-Autumn lantern weekends. The record backs the shower description: 30.5C days feeling like 36C, humidity above 80 percent, 194mm of rain spread across 25 days, and an AQI of 57 - unremarkable most years, but the one month worth double-checking before you go.
ClarkQuayRegular · September · 1 month ago · Read more on Tripadvisor ↗
Forum answers to “is Singapore unbearably hot” settle on the same shape for August as any other month — there's no cooler stretch to wait for: “it's not so much the heat, but the heat+humidity” that wears visitors down, worsened by “90%+ humidity and the direct heat radiation of the sun at one degree north of the equator.” Rain rarely derails plans — showers “don't last long, and are normally over within an hour,” typically an afternoon thing rather than an all-day washout. Our record for August: 28.5°C days that feel like 34°C, 81.5% humidity and rain on 24 of 31 days — frequent but short, matching the pattern locals describe.
Tripadvisor community · August · 1 month ago · Read more on Tripadvisor ↗

Year-round notes are on Singapore's overview. Add your own note from Singapore's card on the map.

Singapore climate normals — October

Daytime high31°C / 88°F🔥 sweltering
Nighttime low26°C / 78°F
Feels like (high)37°C / 99°F
Sea temperature30°C / 86°F♨️ bath-warm
Rainfall269 mm / 10.6 in⛈ soaked
Rainy days26 days
Humidity83%💦 very humid
Dew point24°C / 75°F
Sunshine9 h/day
Daylight12.1 h
Wind12 km/h / 7 mph
Air quality (US AQI)66🙂 moderate

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Singapore in October

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Peak crowdsMid-Autumn Festival, Singapore Grand Prix, school holidays in 3 of the markets that fill it(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Best months for Singapore's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Fair weatherSingapore's best weather comes in February, July and August — separate windows, not one continuous season.

JFMAMJJASOND

Best weatherFair weatherToughest weather

What's on in Singapore in October

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Hazard

    Regional haze risk

    1 Jun – 15 Oct · usuallySmoke season

    Fires on Sumatra and Borneo can push smoke over the island for days at a time in some years and not at all in others. The government publishes a PSI reading hourly. Source ↗

  • Festival

    Mid-Autumn Festival

    1 Sep – 5 Oct · usuallyLights & fireCrowded

    Lanterns go up over Chinatown for weeks beforehand and the mooncake stalls take Smith Street; the street celebration itself lands on the weekend nearest the full moon, and it is shoulder to shoulder after dark. Source ↗

  • Festival

    Singapore Grand Prix

    9–11 OctMotorsport weekendCrowdedBook early

    The night race closes half the centre for a week and puts hotel rates near Marina Bay at their yearly peak, whether or not you have a ticket. Source ↗

  • Season

    Wet season

    MonsoonRisk

    26 rainy days and about 269 mm in the month — the real kind of rainy season, not afternoon showers.

    from the climate normals

What's on around the world in October →

Where is Singapore?

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Singapore in October — FAQ

Is October a good time to visit Singapore?
October in Singapore: sweltering, soaked, with muggy air — a gamble, with 26 rainy days. It ranks #9 of 12 months for Singapore on SeasonMap's comfort score (52/100).
What is the weather like in Singapore in October?
In October, Singapore averages a daily high of 30.9°C and a low of 25.5°C, with about 268.7 mm of rain over roughly 26 rainy days.
What is the air quality in Singapore in October?
Singapore has a mean US Air Quality Index of about 66 in October.