Lamai (Koh Samui) surf forecast, webcam & sea temperature
Updated 12 Oct, 14:00 UTC
Live cam by The Real Samui Webcam via YouTube
Current conditions
Right now at Lamai (Koh Samui): 3 kts ENE, gusts 8, 0.2 m waves, water 31 °C — flat.
Wind3 kts
Gusts8 kts
Direction ENE 70°
Waves 0.2 m
Temperature28 °C
🌊 Water temp31 °C
7-day forecast
| Mon 12 | Tue 13 | Wed 14 | Thu 15 | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 09 | 12 | 15 | 18 | 21 | 00 | 03 | 06 | 09 | 12 | 15 | 18 | 21 | 00 | 03 | 06 | 09 | 12 | 15 | 18 | 21 | 00 | 03 | 06 | |
| Wind | 5 | 6 | 5 | 3 | 3 | 2 | 5 | 3 | 6 | 7 | 4 | 5 | 4 | 4 | 2 | 3 | 5 | 6 | 8 | 5 | 6 | 7 | 2 | 1 |
| Gusts | 16 | 15 | 15 | 8 | 8 | 7 | 12 | 8 | 16 | 19 | 15 | 12 | 10 | 11 | 10 | 7 | 13 | 16 | 20 | 14 | 12 | 14 | 5 | 3 |
| Direction | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ | ↑ |
| Waves | 0.1 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.1 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Temperature | 26 | 29 | 30 | 28 | 28 | 27 | 25 | 25 | 28 | 29 | 29 | 28 | 27 | 27 | 25 | 25 | 27 | 29 | 29 | 27 | 28 | 26 | 25 | 25 |
| Rain (mm) | 2.8 | 1.2 | 0.1 | 0.7 | 1.4 | 0.3 | 0.8 | 1.8 | 0.4 | 0.5 | 3.6 | 4.9 | 1.4 | 0.4 | 0.4 | 0.1 | 0.1 | 0.1 | 2.7 | 2.5 | 0.1 | |||
Times shown in local time · Weather data by Open-Meteo.com
🔒 Days 4–7 are Pro — The free plan shows the first 3 forecast days. Go Pro to see the whole week.
Tides (next 48 h)
Spot info
- Town: Koh Samui
- Water: Sea
- Sports: SUPSurfKitesurf
- Best wind directions: NEE
Samui's east-coast bay picks up the monsoon swell that the rest of the island misses, and the wind fills in across the same stretch of sand.
Lamai (Koh Samui) sea temperature
Today: 31 °C
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 29 | 29 | 30 | 31 | 32 | 31 | 31 | 31 | 30 | 30 | 30 | 29 |
Monthly mean sea surface temperature, 2023–2025.
Lamai (Koh Samui) weather by month
Biggest average waves: January, February and November.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg wind (kts) | 8 | 7 | 7 | 5 | 6 | 7 | 8 | 7 | 8 | 5 | 7 | 7 |
| Days ≥12 kts | 12% | 11% | 3% | 1% | 0% | 3% | 14% | 5% | 18% | 0% | 14% | 10% |
| Waves (m) | 0.5 | 0.5 | 0.4 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | 0.2 | 0.5 | 0.5 |
| Air high (°C) | 28 | 29 | 30 | 32 | 31 | 31 | 31 | 31 | 30 | 30 | 29 | 28 |
| Water (°C) | 29 | 29 | 30 | 31 | 32 | 31 | 31 | 31 | 30 | 30 | 30 | 29 |
Model averages, 2023–2025 (Open-Meteo). Wind is the daytime mean, 08:00–20:00; a day counts when it has 3 or more daytime hours at 12 knots or above.
Lamai (Koh Samui) FAQ
- Is there a beach webcam at Lamai (Koh Samui)?
- Yes. The live beach webcam for Lamai (Koh Samui) is at the top of this page, next to the wind and wave forecast.
- What is the sea temperature at Lamai (Koh Samui)?
- Today the water is 31 °C. Over the year it runs from 29 °C in January to 32 °C in May (2023–2025 average).
- When is the best time to surf at Lamai (Koh Samui)?
- January, February and November have the biggest average waves, on the 2023–2025 average.
- What wind direction works at Lamai (Koh Samui)?
- It works best in NE, E winds.
