Climate comparison · 10 years of data · 2026

Koh Samui vs Koh Lanta

Complete climate comparison — 12 months, 10 years of data, objective scores

Koh Samui

5.3/10
Best month : February (6.0)
Max temp : 29°C
VS

Koh Lanta

5.2/10
Best month : January (5.8)
Max temp : 31°C
Month by month

Detailed Climate Comparison

Weather score out of 10, based on temperature, rain and sunshine. 10-year Open-Meteo data.

MonthKoh SamuiKoh LantaBetter
ScoreTempScoreTemp
MonthKoh SamuiKoh LantaBetter
Jan5.728°C5.831°C↑ Koh Lanta
Feb6.029°C5.732°C↑ Koh Samui
Mar5.930°C5.532°C↑ Koh Samui
Apr5.631°C5.231°C↑ Koh Samui
May5.231°C4.830°C↑ Koh Samui
Jun5.131°C5.030°C↑ Koh Samui
Jul5.131°C5.230°C↑ Koh Lanta
Aug5.231°C5.129°C↑ Koh Samui
Sep5.130°C5.029°C↑ Koh Samui
Oct4.929°C4.929°C— =
Nov5.028°C4.929°C↑ Koh Samui
Dec5.328°C5.530°C↑ Koh Lanta

🏆 Overall Verdict

Koh Samui wins 8 months out of 12, Koh Lanta wins 3 (1 ties). Annual average: Koh Samui 5.3/10, Koh Lanta 5.2/10. Best month: Koh Samui in February, Koh Lanta in January.

📅 By Season

In spring, Koh Samui wins (5.7 vs 5.3). Temperatures: Koh Samui 30°C, Koh Lanta 31°C.

In summer, Koh Samui wins (5.2 vs 5.0). Temperatures: Koh Samui 31°C, Koh Lanta 30°C.

In autumn, Koh Samui wins (5.0 vs 5.0). Temperatures: Koh Samui 30°C, Koh Lanta 29°C.

In winter, Koh Samui wins (5.5 vs 5.5). Temperatures: Koh Samui 28°C, Koh Lanta 30°C.

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