Summer in Phuket is often unfairly labeled as off-season. However, a trip to the island in August can be a great idea — as long as you're prepared, especially for the weather.
What’s the Weather Like in Phuket in August?
Phuket in August is considered low season. Tourist numbers drop noticeably, and so do accommodation prices. That’s because summer on the island means not only a warm and humid climate, but also short tropical downpours. Still, with temperatures reaching up to 30°C (86°F), you won’t get cold.
Phuket Weather in August: Detailed Overview
Wondering whether August in Thailand is a good time for a vacation? Let’s look at the Phuket weather chart and official data.
Day and Night Temperatures
August is quite warm — even hot. During the day, temperatures range from 28°C to 30°C (82°F–86°F). At night, it rarely drops below 26°C (79°F).
Rainfall and Humidity
Clear skies are rare in August. On average, it rains 16 to 20 days a month. These are usually heavy, short-lived showers, often occurring in the morning or evening.
Humidity levels can reach 90–100%. If you have respiratory issues, you may want to choose another time to visit. Occasionally, humidity drops to 75%, bringing a sense of relief.
Sea Conditions: Is It Safe to Swim?
Let’s take a look at the sea conditions in August in Phuket:
- Water temperature stays around 28–30°C (82–86°F);
- Waves are frequent;
- Strong underwater currents may occur.
While the Phuket weather in August is great for surfing, swimming can be risky. Due to rough sea conditions and rip currents, it’s better to enjoy the pool instead.
What Does Rainy Season Mean?
Thailand’s rainy season runs from May to October. This period brings southwest monsoons that cause heavy rainfall and high humidity. Downpours are typically short but intense.
Phuket Yearly Weather Chart
To help plan your trip, here’s a Phuket yearly weather chart by month:
First Half of the Year:
- January: Day +29-31°C, night +23-24°C, humidity 75%
- February: Day +31-32°C, night +23-24°C, humidity 70-75%
- March: Day +29-32°C, night +24-25°C, humidity 70-75%
- April: Day +31-33°C, night +25-26°C, humidity 75-80%
- May: Day +31-33°C, night +25-27°C, humidity 75-80%
- June: Day +29-30°C, night +25-26°C, humidity 80%
Second Half of the Year:
- July: Day +29-31°C, night +25-26°C, humidity 80-85%
- August: Day +28-30°C, night +25-26°C, humidity 80-85%
- September: Day +27-29°C, night +24-26°C, humidity 80-85%
- October: Day +27-29°C, night +24-25°C, humidity 80-85%
- November: Day +28-30°C, night +23-24°C, humidity 75-80%
- December: Day +28-30°C, night +23-24°C, humidity 75-80%
Comparison with July and September
Phuket weather in July, August, and September is very similar. There might be slight temperature variations of 1–2°C. These are all part of the rainy season — expect short but intense rain showers, high humidity, and warm yet choppy seas.
Top Places to Visit in Phuket in August
We’ve previously discussed the best attractions in Phuket. Here are the most popular ones in August:
- Nai Harn Beach – a secluded beach with golden sand;
- Kata-Karon Viewpoint – panoramic views of three beaches;
- Old Phuket Town – colonial architecture and cultural charm;
- Wat Chalong – a temple and pilgrimage site.
Let’s take a closer look.
Nai Harn Beach
If the temperature in Phuket in August allows for a swim, Nai Harn Beach is the place to go. This peaceful spot is ideal for families and couples. The water is clean, and the seabed is free from rocks or shells. A nearby yacht club hosts an annual regatta.
Kata-Karon Viewpoint
This famous viewpoint offers panoramic views of:
- Kata Beach
- Karon Beach
- Kata Noi Beach
Enjoy the scenery from a covered gazebo — a perfect shelter from Phuket’s August rain or sun. Entrance is free.
Old Phuket Town
This historic district reflects Thai, European, and Chinese influences. Narrow streets and colorful colonial buildings with elegant stucco details give the area a unique charm. Many buildings now serve as art spaces or photo spots.
Wat Chalong
The exact age of this sacred Buddhist temple is unknown, but it’s believed to be over 170 years old. It houses a relic of Buddha and is known for elephant statues (said to bring luck) and a sacred tree that grants wishes.
What to Do in Rainy Weather?
Not sure if it’s worth visiting Phuket in the rainy season? Despite the showers, there’s plenty to enjoy:
- Try a Thai cooking or yoga class;
- Relax at a spa or massage salon;
- Visit museums (Shell Museum, National Museum, 3D Museum) or art galleries;
- Explore the Aquarium and observe marine life.
No matter the weather, “Central Phuket” mall offers shopping, cultural activities, and entertainment options: restaurants, art installations, kids’ zones, branded stores, a cinema, and more.
Frequently Asked Questions (FAQ)
Does it rain all day in August?
No. Rain in August is usually short but heavy, mostly in the morning or evening.
Is it safe to swim in August?
The sea temperature is warm, but due to strong waves and currents, swimming is not recommended. A pool is a safer choice.
Is August a good time to visit?
August is ideal for budget travelers — fewer tourists and lower accommodation costs. But if you prefer dry weather, consider coming between December and April. More info in our article “When to Visit Phuket.”
Is August weather similar to July and September?
Yes. All three months are part of the rainy season with very similar weather. Read more in our guide “Best Time to Visit Phuket.”
What should I pack for August?
Bring sun protection, lightweight clothes, non-slip footwear, and a raincoat or umbrella.