☁️
Weather in Koh Samui
🇹🇭 Thailand
Climate Type
🌴Tropical (Wet)
Current Weather
28°C
Clouds• 66% humidity
25°C
Avg Temperature
218
Rainy Days/Year
78%
Avg Humidity
115
Sun Hours/Year
Monthly Weather Overview
Average conditions throughout the year
| Month | Temp | Rain | Humidity | Conditions |
|---|---|---|---|---|
January | 24°C | 16 days | 77% | ✓🌧️☀️ |
FebruaryBest | 24°C | 13 days | 77% | ✓☀️ |
MarchBest | 25°C | 11 days | 76% | ✓☀️ |
AprilBest | 27°C | 11 days | 74% | ✓☀️ |
May | 27°C | 19 days | 78% | ✓🌧️☀️ |
June | 26°C | 17 days | 75% | ✓🌧️☀️ |
July | 26°C | 19 days | 77% | ✓🌧️☀️ |
August | 26°C | 21 days | 77% | ✓🌧️☀️ |
September | 25°C | 22 days | 79% | ✓🌧️☀️ |
October | 25°C | 27 days | 83% | ✓🌧️💧☀️ |
November | 24°C | 23 days | 84% | ✓🌧️💧☀️ |
December | 24°C | 19 days | 81% | ✓🌧️💧☀️ |
✓ Ideal temp (20-28°C)🌧️ Rainy (15+ days)🔥 Hot (32°C+)❄️ Cold (<10°C)💧 Humid (80%+)☀️ Sunny (8h+)
Climate Charts
Visual overview of Koh Samui's weather patterns
24°
Jan
24°
Feb
25°
Mar
27°
Apr
27°
May
26°
Jun
26°
Jul
26°
Aug
25°
Sep
25°
Oct
24°
Nov
24°
Dec
Cold (<10°C) Cool (10-17°C) Mild (18-24°C) Warm (25-29°C) Hot (30°C+)
Best Time to Visit Koh Samui
✓
Recommended
FebruaryMarchApril
Ideal temperature, sunny
⚠️
Consider Avoiding
No particularly bad months
What to Pack for Koh Samui
Based on Tropical (Wet) climate
👕
Light, breathable fabrics
Avg 25°C year-round
🩴
Sandals and flip-flops
Tropical climate
🦟
Insect repellent
Tropical environment
☔
Quality rain jacket
218 rainy days/year
🌂
Compact umbrella
Frequent rain expected
🎒
Packable day bag
Daily exploration
🔗 More About Koh Samui
Ready to visit Koh Samui?
Get the complete digital nomad guide with neighborhoods, coworking, and more
View Full Guide