Koh Samui, Thailand Weather

Surat Thani, Thailand · Tuesday, Sep 1 · local time 6:51 AM

28°

☁️

Cloudy now · feels like 32°
High 30° · Low 28°

Precipitation today1.3 mm6–10 PM

Wind gusts37 km/hpeak 8 PM

Humidity76%driest 2 PM

Pressure1011.1 hParising

🌅 Sunrise 6:11 AM · 🌇 Sunset 6:28 PM

Updated Sep 1, 6:51 AM · data details

📷 6 recent weather photos from Koh Samui and nearby →

Animated temperature & precipitation forecast

26°Bangkok

22°Chiang Mai

28°Phuket

26°Pattaya

26°Hanoi

28°Ho Chi Minh

24°Da Nang

27°Nha Trang

28°Phnom Penh

25°Siem Reap

24°Vientiane

24°Yangon

25°Mandalay

25°Hat Yai

27°Krabi

28°Koh Chang

28°Hua Hin

28°Koh Samui

🌡️ Temperature + clouds · Tue, Sep 1 · 7:00 AM

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+6h

Live frames from the Weathershot map (run 2026-08-31T18:00Z) · 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 1

🌦️

30° / 28°

💧 1.3 mm

💨 37 km/h

Wed

Sep 2

🌦️

30° / 28°

💧 2.1 mm

💨 45 km/h

Thu

Sep 3

🌦️

30° / 28°

💧 1.6 mm

💨 42 km/h

Fri

Sep 4

🌦️

30° / 28°

💧 0.6 mm

💨 32 km/h

Sat

Sep 5

🌦️

29° / 28°

💧 1.2 mm

Sun

Sep 6

🌦️

29° / 28°

💧 2.2 mm

Mon

Sep 7

🌦️

30° / 28°

💧 1.4 mm

Extended
lower
confidence

Tue

Sep 8

🌦️

29° / 28°

💧 3.2 mm

Wed

Sep 9

🌦️

30° / 28°

💧 1.5 mm

Thu

Sep 10

🌧️

28° / 26°

💧 20.9 mm

Fri

Sep 11

🌦️

28° / 27°

💧 3.1 mm

Sat

Sep 12

🌧️

27° / 26°

💧 18.4 mm

Sun

Sep 13

🌦️

28° / 26°

💧 2.1 mm

Mon

Sep 14

🌧️

28° / 26°

💧 6.0 mm

Tue

Sep 15

🌦️

27° / 26°

💧 4.1 mm

Wed

Sep 16

🌦️

27° / 26°

💧 2.6 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 Amphoe Ko Samui, 0°C — December 10, 2024 (community photo) — 📷 0°C · Dec 10, 2024📷 C B.

Partly cloudy weather in Amphoe Ko Samui, 28°C — March 7, 2024 (community photo) — ⛅ Partly cloudy · 28°C · Mar 7, 2024📷 Kjeldsen

Cloudy weather in Amphoe Ko Samui, 31°C — July 1, 2024 (community photo) — ☁️ Cloudy · 31°C · Jul 1, 2024📷 Eirik T.

Cloudy weather in Chang Wat Surat Thani, 33°C — June 11, 2022 (community photo) — ☁️ Cloudy · 33°C · Jun 11, 2022📷 Magg M.

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September in Koh Samui through the years

From the Weathershot archive · one photo per year when available

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

Nearby cities