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Phuket weather by month
Historical averages 2016–2025 · not a forecast
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When is the best time to visit Phuket?
For a warm holiday, the best week has been 29 January – 4 February (Weather Index 95). Favourable start dates for a 7-day trip run from 9 January to 15 February. February to July are warmest (29°C), February is driest and February, March and April have the most sun.
- Warmest
- February to July 29°C
- Coolest
- August to January 28°C
- Driest
- February 20% rain-day chance
- Wettest
- October 85% rain-day chance
- Sunniest
- February, March and April 11 hours a day
A rain day has 1 mm or more, snow included, so a short shower counts. Monthly averages below give the amounts.
Monthly averages in Phuket
Phuket historical monthly estimates, 2016–2025. Temperatures and sunshine are daily averages.
| Month | High (°C) | Low (°C) | Rain-day chance (%) | Expected rain days | Precipitation (mm/month) | Sunshine (hours/day) |
|---|---|---|---|---|---|---|
| January | 28.5 | 25.7 | 24.5 | 7.6 | 75.1 | 10.3 |
| February | 28.9 | 26.1 | 20.0 | 5.6 | 31.6 | 10.9 |
| March | 29.1 | 26.9 | 23.9 | 7.4 | 38.1 | 11.0 |
| April | 29.2 | 27.2 | 59.0 | 17.7 | 124.5 | 10.7 |
| May | 29.1 | 27.1 | 81.9 | 25.4 | 280.3 | 9.4 |
| June | 28.8 | 26.9 | 72.0 | 21.6 | 248.3 | 9.4 |
| July | 28.6 | 26.8 | 69.0 | 21.4 | 251.8 | 9.4 |
| August | 28.4 | 26.6 | 73.2 | 22.7 | 268.2 | 9.5 |
| September | 28.0 | 26.3 | 82.0 | 24.6 | 339.9 | 8.4 |
| October | 27.8 | 26.0 | 85.2 | 26.4 | 321.9 | 8.4 |
| November | 27.9 | 25.9 | 73.7 | 22.1 | 234.8 | 8.3 |
| December | 28.2 | 25.6 | 38.4 | 11.9 | 97.7 | 9.6 |
Each month averages its own days. Precipitation includes snow. About the data
Sources
Open-Meteo · 1 Jan 2016 – 31 Dec 2025
- Open-Meteo Historical Weather API
- Local days, 2016–2025, every year weighted equally. Each weekly chart averages its own seven days, without smoothing.
- Shading shows the 10th–90th percentile of past days, not forecast confidence.
- A rain day has at least 1 mm, snow included. The last weekly period has eight days.
- Wind is the average daytime (10:00–18:00) maximum, not gusts. Daylight is calculated from latitude. Missing readings stay blank.
- Mugginess (dew point) comes from the original daily summaries, on UTC days.
- The live two-week forecast comes from the Open-Meteo Weather Forecast API. The Weather Index does not use it.