Samui Sea Temperature Today: 30-Day Water Forecast
The sea temperature in Samui today is +32°C. Over the next 30 days, the water temperature is expected to stay between +29°C and +32°C. The water is warm enough for swimming and beach time. For a shorter view, open the 14-day sea temperature forecast.
Daily air temperature for the month
Day +30°C
Night +25°C
Daily sea water temperature for the month
Water +32°C
Tap a date to open detailed daily weather
| July | Day | Night | Sea t° | Wind | Precipitation | Humidity |
|---|---|---|---|---|---|---|
| 21Tue |  +30°C |  +25°C | +32°C | 5 m/s, W | 4.2 mm | 82% |
| 22Wed |  +30°C |  +25°C | +31°C | 5–6 m/s, W | 10 mm | 82% |
| 23Thu |  +29°C | +25°C | +31°C | 6 m/s, W | 7.5 mm | 83% |
| 24Fri | +27°C | +25°C | +31°C | 6 m/s, W | 8.7 mm | 85% |
| 25Sat | +28°C | +25°C | +31°C | 6 m/s, W | 6 mm | 84% |
| 26Sun | +28°C |  +25°C | +31°C | 7 m/s, W | 3 mm | 84% |
| 27Mon | +27°C | +24°C | +30°C | 6–7 m/s, W | 17.7 mm | 87% |
| 28Tue | +27°C | +25°C | +31°C | 6 m/s, WSW | 11 mm | 87% |
| Further values are multi-year averaged climate | ||||||
| 29Wed |  +30°C |  +28°C | +31°C | 5 m/s | 0.4 mm | 74% |
| 30Thu |  +30°C |  +27°C | +31°C | 5 m/s | 0.5 mm | 75% |
| 31Fri | +30°C |  +28°C | +31°C | 5 m/s | 0.7 mm | 74% |
| 1Sat | +30°C | +27°C | +31°C | 6 m/s | 1.2 mm | 73% |
| 2Sun | +30°C | +28°C | +31°C | 5 m/s | 1 mm | 74% |
| 3Mon | +29°C | +28°C | +31°C | 5 m/s | 0.8 mm | 75% |
| 4Tue | +30°C | +28°C | +31°C | 5 m/s | 1.3 mm | 74% |
| 5Wed | +30°C |  +28°C | +30°C | 5 m/s | 0.1 mm | 74% |
| 6Thu | +30°C | +28°C | +30°C | 5 m/s | 0.3 mm | 73% |
| 7Fri | +29°C | +27°C | +29°C | 5 m/s | 0.2 mm | 72% |
| 8Sat | +30°C | +28°C | +29°C | 4 m/s | 0.3 mm | 73% |
| 9Sun |  +29°C | +27°C | +29°C | 5 m/s | 0.4 mm | 74% |
| 10Mon | +30°C | +27°C | +30°C | 6 m/s | 0.9 mm | 75% |
| 11Tue | +29°C | +28°C | +29°C | 5 m/s | 1.8 mm | 74% |
| 12Wed | +30°C | +28°C | +30°C | 6 m/s | 0.5 mm | 73% |
| 13Thu | +30°C | +28°C | +30°C | 4 m/s | 0.3 mm | 72% |
| 14Fri | +30°C | +28°C | +30°C | 4 m/s | 0.3 mm | 73% |
| 15Sat | +29°C | +27°C | +30°C | 4 m/s | 0.7 mm | 75% |
| 16Sun | +29°C |  +26°C | +30°C | 5 m/s | 0.2 mm | 76% |
| 17Mon | +29°C | +27°C | +30°C | 4 m/s | 1 mm | 73% |
| 18Tue | +30°C | +27°C | +30°C | 3 m/s | 0.1 mm | 73% |
| 19Wed | +29°C | +27°C | +30°C | 3 m/s | 0.2 mm | 73% |
| 20Thu | +30°C | +27°C | +30°C | 4 m/s | 0.7 mm | 73% |
Sea water temperature by months
Water +30°C
Day and night air temperature
Day +30°C
Night +27°C
Weather minimums and maximums in Samui for a month
- Warmest day: 21 July, +30°C
- Coldest night: 27 July, +24°C
- Days with precipitation in a month: 31
- Precipitation for a month: 82 mm
- Rainiest day in a month: 27 July
- Maximum precipitation amount: 27 July 17.7 mm
- Highest sea water temperature: 21 July, +32°C
- Lowest sea water temperature: 9 August, +29°C
