Beach Weather

Comprehensive weather and environmental data for Koh Samui

22°-33°CAnnual Temperature

1950mmAnnual Rainfall

27°-30°CSea Temperature

52kmCoastline

AugustNow

August Weather

Monsoon Season

Good Weather

Temperature24° - 31°CFeels like 32° - 34°C

Humidity83%very high

Rainfall100mm10 rainy days

Sunshine6 hrs/dayConsistent cloud cover

Wind19-24 km/hSouthwest

Waves0.8-1.4mModerate

Sea Temperature29°CExcellent

Water Visibility20-30mgood-excellent

Water sportsBudget travelDiving

Rainfall Pattern:Monsoon continues; variable

UV Index

11Extreme

Peak Hours: 9 AM - 3 PM

Burn Time: 12-15 minutes

SPF 50+ sunscreen mandatory. Reapply every 2 hours.

Air Quality

54Moderate

PM2.5: 16-20 µg/m³

PM10: 24-28 µg/m³

Acceptable for most

Data based on 3-year averages (2023-2026). Actual conditions may vary. Always observe local flag warnings on the beach.