SeasonScore
Koh Samui, Thailand
Photo: Ssuri · CC BY-SA 3.0

Thailand

Koh Samui in November

🌧️ Northeast monsoon rains

Warm, humid and very wet. Watch for flood risk.

🎒 Pack: light, breathable clothes & sunscreen · compact umbrella or rain jacket · quick-dry fabrics · waterproof sandals

Best months: Feb (8.3), Jan (8.2), Mar (8.2)

‹
Every month at a glanceTap a month to open it
›

Why November scores 6.9What goes into the score

How it works
🌡️ 30° / 24°C🌧️ 445 mm💧 dew pt 25°🍃 PM2.5 6
  • Weather comfort4.9
    • ✓Warm (30°C highs / 24°C lows)
    • !Very humid/sticky (dew point 24.6°C)
    • !Wet: ~445 mm rain, ~14 heavy-rain days
  • Air quality9.8
    • ✓Good (within WHO guideline) (PM2.5 ~6 µg/m³)
  • Seasonal hazards8.5
    • !Flood: ~14 heavy-rain days (≥10 mm) in an average November
  • Safety baseline8.0
    • ·Normal precautions
Compare monthsPut November side by side with another month
NovFeb
Score6.9 Good8.3 Very good
Season🌧️ Northeast monsoon rains☀️ Dry season
High / low30° / 24°29° / 25°
Rain445 mm64 mm
Humiditydew pt 25°dew pt 23°
PM2.56 µg/m³21 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Ko Samui weather-station normals. Rainfall: Ko Samui weather-station normals (national met service).

Holidays & crowdsNovember 2026

No long holidays

No long public-holiday weekends this month. School holidays aren't counted, so check those if you want to avoid family crowds.

No national public holidays in Thailand this month.

National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).

Explore Koh SamuiEvents, sights, food & souvenirs

Check event dates locally

Thailand's second-largest island, in the Gulf of Thailand, visited for beaches, resorts, temples and boat trips to the Ang Thong marine park.

Events in November
Loy KrathongDate variesThai lunar calendar, usually November

People float candlelit offerings on the water.

Why go: It falls in the rainy season on Samui.

Where: Beaches and temples

Coming up later

SongkranEvery year13-15 April every year

Thai New Year, celebrated with water fights in the streets.

Why go: Expect to get soaked; keep phones in waterproof bags.

Where: Island-wide, especially Chaweng

Plan this tripTickets, data and transfers for Koh Samui

Airport transfer Kiwitaxi

Partner links: we may earn a small commission at no extra cost to you. It never affects scores.