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Phuket in August: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Phuket in August will be like? Take a look at our weather guide for Phuket, based on historical data.
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August

Weather in Phuket in August 2025

OK Weather
Warm
🌧️
Rainy
🌊
Very warm water
If you plan to visit Phuket in August, the weather is typically alright, with an average high temperature of +84°F during the day and approximately 0 sunny days. Expect some rainy, though, as there are typically 25 rainy days in the month and around 197 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flights in one click on Avionero.

Average weather

☀️
+84°F
Avg. max. temperature
+73°F
Min.
+95°F
Max.
197 mm
Total precipitation
81%
Avg. humidity
4 m/s
Avg. wind
0 ☀️
Sunny Days
5 ⛅️
Cloudy
25 🌦
Rainy
Our opinion: Phuket has OK weather in August.

Average temperature in Phuket in August

Here are the expected maximum, average and minimum temperatures in Phuket for August based on the historical data.
Last Year
Historical Data

Going from a maximum of +84°F during the day to a minimum of +79°F during the night, the temperature in August averages around +84°F.

The average maximum temperature goes down 33% by the end of the month, compared with the beginning of the month, from +84°F to +82°F.

Is Phuket warm or cold in August?

Phuket is typically warm in August.

Maximum temperatures go up compared to the previous month from +84°F to +84°F. The minimum temperature also goes up from +79°F to +79°F.

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 +83°F to +86°F, with an average of +84°F. This is almost similar to the air temperature, which averages +84°F.

In August, water temperatures are average relative to the rest of the year:

The warmest water temperatures in Phuket are reached in May, when the average sea temperature rises to +87°F. The coldest water temperatures are in January, with an average of +83°F.

Can you swim in Phuket in August?

You can definitely swim in Phuket in August, the water is very warm (+84°F in average), and might even be unpleasant for ones who like it more fresh.
🦭
Cold
Below +61°F
🏄‍♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
Don't forget sunscreen and a hat, it's going to be hot!

Climate in Phuket in August

Phuket weather looks like this, on average, in August and the surrounding months.
JulyAugustSeptember
Avg. temperature
+84°F+84°F+82°F
Min. temperature
+73°F+73°F+73°F
Max. temperature
+95°F+95°F+95°F
Rainfall
185 mm197 mm257 mm
Wind
3 m/s4 m/s3 m/s
Avg. water temperature
+86°F+84°F+84°F
Humidity
81%81%82%
Air pressure
1008 HPa1008 HPa1009 HPa
Sunny days
000
Cloudy days
452
Rainy days
242526
Snowy days
000

August weather is still as ok as in July. The temperature levels stay the same in the area of +84°F 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

Wind speed in Phuket in August based on historical data.
Last Year
Historical Data

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

Amount of rainfall in mm during August in Phuket based on historical data.
Last Year
Historical Data
Typically, there is a 81% chance of rain on an average day in August, with total rainfall of approximately 290 mm. The maximum amount of rainfall per day is around 60 mm, which is considered heavy rain. August is a pretty wet month with over 25 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how August is compared with other months in the amount of precipitation, total mm:
Phuket wettest month is October, where a typical day has a 81% chance of precipitation and 269 mm of rainfall per day. February, on the other hand, is the driest month with a mere 41% chance of precipitation and 29 mm of rainfall per day.

How was the weather last August in Phuket?

This is the weather in Phuket in August 2023:
1 August
☁️
+84°F
2 August
☁️
+85°F
3 August
☁️
+84°F
4 August
☁️
+84°F
5 August
☁️
+84°F
6 August
☁️
+84°F
7 August
🌧️
+83°F
8 August
🌧️
+83°F
9 August
🌧️
+82°F
10 August
☁️
+83°F
11 August
🌧️
+82°F
12 August
🌧️
+83°F
13 August
🌧️
+83°F
14 August
🌧️
+83°F
15 August
🌧️
+83°F
16 August
🌧️
+82°F
17 August
☁️
+84°F
18 August
☁️
+83°F
19 August
☁️
+84°F
20 August
🌧️
+84°F
21 August
☁️
+83°F
22 August
☁️
+84°F
23 August
☀️
+84°F
24 August
☁️
+84°F
25 August
☁️
+84°F
26 August
☀️
+83°F
27 August
☁️
+84°F
28 August
🌧️
+84°F
29 August
🌧️
+83°F
30 August
🌧️
+82°F
31 August
🌧️
+83°F
In August 2023 Phuket had 2 sunny days, 15 cloudy days, and 14 rainy days. The average maximum temperature was +84°F, with an absolute maximum of +84°F and a minimum of +82°F. The average humidity was 84%, with a maximum of 93% and a minimum of 75%. The average wind speed was 5 m/s, with a maximum of 9 m/s and a minimum of 1 m/s.
Are you planning a trip in August?

Climate Change Over the Years

This is how Phuket climate has changed over the last 43 years.

The climate in Phuket in August has not changed that much over the last 43 years.

The average temperature was the lowest in 1994 (+82°F) and the highest in 2019 (+91°F). The driest year was 1981 with only 1340 mm of rainfall, and the wettest year was 2017 with 2500 mm.

FAQ

Frequently asked questions about the weather in Phuket in August:

Is August a good time to visit Phuket?

It’s always a good time to visit Phuket, but the weather is changeable in August, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Phuket in August?

August is warm in Phuket. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.

Can you swim in Phuket in August?

Yes, you can swim in Phuket in August, the water is very warm, with temperature averaging at +84°F, but it's important to manage hydration and sun exposure.

Is Phuket rainy in August?

Phuket is often rainy in August. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Phuket in August?

Usually, it’s not very sunny in Phuket in August, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Thailand

Check out the weather for 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.