Koh Samui, Thailand Weather

Surat Thani, Thailand · Saturday, Sep 5 · local time 12:57 PM

29°

☁️

Cloudy now · feels like 33°
High 30° · Low 28°

Precipitation today0.7 mm5–7 PM

Wind gusts41 km/hpeak 7 PM

Humidity71%driest 5 PM

Pressure1010.7 hPasteady

🌅 Sunrise 6:12 AM · 🌇 Sunset 6:27 PM

Updated Sep 5, 12:57 PM · data details

📷 6 recent weather photos from Koh Samui and nearby →

Animated temperature & precipitation forecast

35°Bangkok

31°Chiang Mai

30°Phuket

31°Pattaya

30°Hanoi

35°Ho Chi Minh

31°Da Nang

30°Nha Trang

38°Phnom Penh

33°Siem Reap

30°Vientiane

32°Yangon

31°Mandalay

35°Hat Yai

30°Krabi

29°Koh Chang

32°Hua Hin

29°Koh Samui

🌡️ Temperature + clouds · Sat, Sep 5 · 1:00 PM

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+6h

Live frames from the Weathershot map (run 2026-09-05T00:00Z) · not radar — model-based precipitation & temperature · bars next to a city = accumulated rain (one bar ≈ 10 mm), dot = a trace, violet bar = extreme totals

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16-Day Extended Weather Forecast

Days 1–7: regular forecast · days 8–16: extended, lower confidence

Today

Sep 5

🌦️

30° / 28°

💧 0.8 mm

💨 41 km/h

Sun

Sep 6

🌦️

31° / 28°

💧 1.8 mm

💨 42 km/h

Mon

Sep 7

🌦️

31° / 28°

💧 0.8 mm

💨 44 km/h

Tue

Sep 8

🌦️

30° / 28°

💧 2.1 mm

💨 34 km/h

Wed

Sep 9

🌦️

29° / 28°

💧 1.8 mm

Thu

Sep 10

🌦️

29° / 28°

💧 1.4 mm

Fri

Sep 11

🌧️

28° / 26°

💧 23.8 mm

Extended
lower
confidence

Sat

Sep 12

🌧️

27° / 26°

💧 34.0 mm

Sun

Sep 13

🌦️

28° / 27°

💧 3.7 mm

Mon

Sep 14

🌧️

28° / 26°

💧 15.7 mm

Tue

Sep 15

🌦️

28° / 26°

💧 4.0 mm

Wed

Sep 16

🌦️

30° / 28°

💧 0.7 mm

Thu

Sep 17

🌧️

29° / 27°

💧 17.4 mm

Fri

Sep 18

🌧️

28° / 27°

💧 6.6 mm

Sat

Sep 19

🌧️

29° / 27°

💧 5.1 mm

Sun

Sep 20

🌧️

28° / 28°

💧 6.7 mm

Recent weather photos from Koh Samui

Real photos from the Weathershot community — each with the temperature at the moment it was taken

Partly cloudy weather in Amphoe Ko Samui, 28°C — March 20, 2026 (community photo) — ⛅ Partly cloudy · 28°C · Mar 20, 2026📷 Kofler123

Rainy weather in Chang Wat Surat Thani, 31°C — July 7, 2025 (community photo) — 🌧️ Rainy · 31°C · Jul 7, 2025📷 Odd E. D.

Weather in Ko Samui District, 30°C — January 10, 2024 (community photo) — 📷 30°C · Jan 10, 2024📷 GVD

Rainy weather in Chang Wat Surat Thani, 30°C — January 23, 2025 (community photo) — 🌧️ Rainy · 30°C · Jan 23, 2025📷 Beetle2004

Weather in Amphoe Ko Samui, 0°C — April 15, 2022 (community photo) — 📷 0°C · Apr 15, 2022📷 Yun

Sunny weather in Amphoe Ko Samui, 28°C — April 16, 2022 (community photo) — ☀️ Sunny · 28°C · Apr 16, 2022📷 Yun

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September in Koh Samui through the years

From the Weathershot archive · one photo per year when available

Weather in Amphoe Ko Samui, 24°C — September 16, 2021 (community photo) — 📷 24°C · Sep 2021📷 Maew S.

Rainy weather in Chang Wat Surat Thani, 31°C — September 25, 2021 (community photo) — 🌧️ Rainy · 31°C · Sep 2021📷 suparb jarurnroop

Weather in Chang Wat Surat Thani — September 16, 2022 (community photo) — 📷 Sep 2022📷 Patompong K.

Koh Samui, Thailand Weather

16-Day Extended Weather Forecast

Next 48 hours

Recent weather photos from Koh Samui

September in Koh Samui through the years

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