Weather in Phuket in August 2025
Average weather
Average temperature in Phuket in August
Going from a maximum of +29°C during the day to a minimum of +26°C during the night, the temperature in August averages around +29°C.
The average maximum temperature goes down 33% by the end of the month, compared with the beginning of the month, from +29°C to +28°C.
Is Phuket warm or cold in August?
Phuket is typically warm in August.
Maximum temperatures go up compared to the previous month from +29°C to +29°C. The minimum temperature also goes up from +26°C to +26°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how August is compared to other months in Phuket:
Water temperature in Phuket in August
Water in Phuket in August is Very warm. It varies from +28°C to +30°C, with an average of +29°C. This is almost similar to the air temperature, which averages +29°C.
In August, water temperatures are average relative to the rest of the year:
Can you swim in Phuket in August?
Climate in Phuket in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +29°C | +29°C | +28°C | ||||
| Min. temperature | ||||||
| +23°C | +23°C | +23°C | ||||
| Max. temperature | ||||||
| +35°C | +35°C | +35°C | ||||
| Rainfall | ||||||
| 185 mm | 197 mm | 257 mm | ||||
| Wind | ||||||
| 3 m/s | 4 m/s | 3 m/s | ||||
| Avg. water temperature | ||||||
| +30°C | +29°C | +29°C | ||||
| Humidity | ||||||
| 81% | 81% | 82% | ||||
| Air pressure | ||||||
| 1008 HPa | 1008 HPa | 1009 HPa | ||||
| Sunny days | ||||||
| 0 | 0 | 0 | ||||
| Cloudy days | ||||||
| 4 | 5 | 2 | ||||
| Rainy days | ||||||
| 24 | 25 | 26 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as ok as in July. The temperature levels stay the same in the area of +29°C for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 185 mm to 197 mm. Humidity levels don’t change as the month goes on, averaging around 81%. Winds are stronger in comparison to July, going up from 3 m/s to 4 m/s on average. The amount of sunny days stay about the same, averaging 0 sunny days during the month.
September brings much the same weather, it remains ok.
Wind
The average wind speed is 5 m/s getting up to 8 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Phuket is gradually increasing during August, going from 6 m/s to 6 m/s over the course of the month.
Rain
How was the weather last August in Phuket?
Climate Change over Years
The climate in Phuket in August has not changed much over the last 43 years.
The average temperature was the lowest in 1994 (+28°C) and the highest in 2019 (+33°C). The driest year was 1981 with only 1340 mm of rainfall, and the wettest year was 2017 with 2500 mm.
FAQ
Is August a good time to visit Phuket?
Can you sunbathe in Phuket in August?
Can you swim in Phuket in August?
Is Phuket rainy in August?
Is it sunny in Phuket in August?
Other cities in Thailand
Monthly weather in Phuket
Source of the data
For this page, we’ve looked at the typical weather in Phuket, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.