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Koh Samui, Thailand Weather

Surat Thani, Thailand · Sunday, Oct 4 · local time 6:59 PM
29°
⛈️
Thunderstorms now · feels like 32°
High 30° · Low 28°
Precipitation today7.2 mm4 AM–11 PM
Wind gusts26 km/hpeak 12 AM
Humidity71%driest 6 PM
Pressure1011.1 hPafalling
🌅 Sunrise 6:20 AM · 🌇 Sunset 6:20 PM
Updated Oct 4, 6:59 PM · data details
📷 6 recent weather photos from Koh Samui and nearby →
Animated temperature & precipitation forecast
30°Bangkok
26°Chiang Mai
29°Phuket
27°Pattaya
24°Hanoi
28°Ho Chi Minh
27°Da Nang
28°Nha Trang
30°Phnom Penh
30°Siem Reap
28°Vientiane
29°Yangon
28°Mandalay
27°Hat Yai
28°Krabi
29°Koh Chang
28°Hua Hin
29°Koh Samui
🌡️ Temperature + clouds · Sun, Oct 4 · 7:00 PM
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+6h
Live frames from the Weathershot map (run 2026-10-04T06:00Z) · 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
Mon
Oct 5
🌦️
30° / 28°
💧 2.4 mm
💨 22 km/h
Tue
Oct 6
⛈️
29° / 28°
💧 5.8 mm
💨 14 km/h
Wed
Oct 7
⛈️
29° / 28°
💧 15.6 mm
💨 14 km/h
Thu
Oct 8
🌧️
29° / 28°
💧 12.5 mm
 
Fri
Oct 9
🌧️
29° / 27°
💧 7.5 mm
 
Sat
Oct 10
🌦️
29° / 28°
💧 2.9 mm
 
Sun
Oct 11
🌧️
29° / 28°
💧 12.0 mm
 
Extended
lower
confidence
Mon
Oct 12
🌧️
28° / 26°
💧 13.0 mm
 
Tue
Oct 13
🌧️
28° / 26°
💧 17.0 mm
 
Wed
Oct 14
🌧️
27° / 26°
💧 14.8 mm
 
Thu
Oct 15
🌧️
27° / 26°
💧 16.8 mm
 
Fri
Oct 16
🌧️
28° / 26°
💧 7.3 mm
 
Sat
Oct 17
🌦️
28° / 26°
💧 3.3 mm
 
Sun
Oct 18
🌧️
28° / 25°
💧 24.3 mm
 
Mon
Oct 19
🌧️
29° / 27°
💧 8.1 mm
 

Next 48 hours

Sky, hourly temperature and rain · shaded areas are night
29°0.90.60.71.10.9☁️29°☁️⛈️29°⛈️☁️29°☁️☁️28°☁️☁️29°⛅☁️29°☁️☁️29°☁️☁️29°⛈️⛈️28°18:0000:0006:00Monday18:0000:0006:00Tuesday
🛰️
Updated Oct 4, 2026, 6:59 PM local time · Data: NOAA GFS 0.25°, run 2026-10-04 06z · aggregated in local time (Asia/Bangkok) · photos rotate daily

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.
Rainy weather in Chang Wat Surat Thani, 32°C — August 2, 2022 (community photo)
🌧️ Rainy · 32°C · Aug 2, 2022📷 Odd E. D.
Cloudy weather in Chang Wat Surat Thani, 32°C — February 6, 2024 (community photo)
☁️ Cloudy · 32°C · Feb 6, 2024📷 Regina B.
Sunny weather in Amphoe Ko Samui, 28°C — April 16, 2022 (community photo)
☀️ Sunny · 28°C · Apr 16, 2022📷 Yun
Weather in Chang Wat Surat Thani — September 16, 2022 (community photo)
📷 Sep 16, 2022📷 Patompong K.
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October in Koh Samui through the years

From the Weathershot archive · one photo per year when available
Rainy night weather in Chang Wat Surat Thani, 25°C — October 9, 2021 (community photo)
🌧️ Rainy night · 25°C · Oct 2021📷 Sky C.
Rainy night weather in Chang Wat Surat Thani, 25°C — October 13, 2021 (community photo)
🌧️ Rainy night · 25°C · Oct 2021📷 Sky C.
Cloudy weather in Chang Wat Surat Thani, 31°C — October 15, 2021 (community photo)
☁️ Cloudy · 31°C · Oct 2021📷 suparb jarurnroop
Weather in Amphoe Ko Samui, 0°C — October 19, 2021 (community photo)
📷 0°C · Oct 2021📷 ภาวิณี คงแป้น
Weather in Amphoe Ko Samui, 0°C — October 20, 2021 (community photo)
📷 0°C · Oct 2021📷 ภาวิณี คงแป้น
Rainy weather in Amphoe Ko Samui, 28°C — October 28, 2021 (community photo)
🌧️ Rainy · 28°C · Oct 2021📷 jaae11037
Weather in Amphoe Ko Samui, 0°C — October 29, 2021 (community photo)
📷 0°C · Oct 2021📷 jaae11037
Weather in Chang Wat Surat Thani, 26°C — October 22, 2023 (community photo)
📷 26°C · Oct 2023📷 Jum J.

Nearby cities

Weather around Koh Samui — distances as the crow flies
Koh Phangan21 km away · full forecast → Koh Tao63 km away · full forecast → Bangkok473 km away · full forecast →