Our weather and climate analysis offers a detailed understanding of average weather patterns for locations across the globe. Derived from 26 years of historical simulated weather data from ECMWF, it provides valuable insights into typical weather conditions, including air temperature, humidity, precipitation, cloud cover and wind. It is important to note the data is not observational, but rather derived from climate reanalysis.
Our database was last updated in January 2026, and current weather and climate guides are derived from an hourly dataset spanning 26 years (2000 to 2025). Our database contain modified Copernicus Climate Change Service information for these years. Refer to our Terms for full acknowledgements and disclaimers.
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Discover if upcoming months are expected to be warmer, colder, wetter, or drier than average
What is the best time to visit Phuket to enjoy the optimal weather conditions?
This quick reference weather table contains a summary of the annual climate trends in Phuket. It contains key metrics, including average monthly high & low temperatures, rainfall, humidity and UV index. The data is presented on a monthly basis, allowing you to see how each these weather components change throughout the year.
Phuket's long-term climate patterns earn these Weather Badges.
Explore the most extreme weather events in Phuket over the past 26 years, including record highs and lows for temperatures, rainfall, and wind speeds. This data is sourced from the latest ERA5 reanalysis model spanning 2000 to 2025.
Explore weather patterns in areas close to Phuket, Thailand
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Use our Climate Finder to search locations by their temperature and humidity patterns.
Weather guides, climate insights, and travel planning stories that talk about Phuket.
Phuket experiences an intense tropical climate defined by consistent heat and minimal thermal variation. WeatherBox data shows that the average temperature fluctuates by only 1.3°C (2.3°F) throughout the year, resulting in a stable thermal profile regardless of the season. Even during the coolest month, average daily lows sit at a balmy 25.6°C (78.1°F). The heat peaks in April, where average daily highs reach 29.1°C (84.4°F). Visitors rarely escape the warmth, as temperatures typically stay above 24.8°C (76.6°F) year-round.
Rainfall patterns dictate the island's seasonal rhythm more than temperature does. The region receives a massive 2,298 mm (90 in) of precipitation annually, though it is unevenly distributed. The dry season typically spans January to March, with the driest month recording just 28 mm (1 in) of rain. In sharp contrast, the monsoon season brings torrential downpours later in the year. During the peak wet months of August to October, the rain is relentless; the wettest month alone accumulates 315 mm (12 in) of precipitation. Cloud cover is significant during this period, peaking at 96.9 coverage.
Beyond the rain and heat, the atmosphere remains thick and heavy. The relative humidity is consistently high, peaking at 83.2, creating oppressive mugginess. Data indicates that "comfortable" humidity levels occur 0.0 of the time, meaning the air almost always feels saturated. Solar intensity is also extreme, as the average peak UV Index is 12.3, requiring constant protection. Wind speeds generally pick up during the rainy season, averaging 18.6 km/h (11.5 mph) during the windiest month. Review the advanced weather charts on WeatherBox to see specific monthly breakdowns.