Planning a trip to Phuket in August? It's the monsoon season, but that doesn't mean it's a bad time to go. You'll get some rain, but also fewer crowds and better value. This guide breaks down what to expect and where to go so you can plan your trip more realistically.
Phuket Weather in August
- Average temperature range: 25–31°C (77–88°F)
- Average rainfall: 260 mm (11 inches)
- Average rainy days: 19
- Average sunny days: 8
August in Phuket is right in the middle of the monsoon season, so the weather is a mix rather than a clear "good or bad" situation.
It's still warm at around 25–31°C, but humidity is high, which makes the air feel heavier. Most days aren't fully rainy. Instead, you'll often get bursts of heavy tropical showers that pass quickly, with brighter periods in between.
The main thing to pay attention to is the sea. On the west coast—like Patong, Karon, and Kata—the monsoon brings strong waves and currents. Swimming is often not allowed, and red flags are common. For many travelers, this has more impact on the trip than the rain itself.
That said, August can still work well if you plan around the season. It's quieter, hotels are better value, and the island is very green. It suits travelers who are more focused on relaxation, spas, and resort time rather than beach swimming or boat trips.
Insider Alternative: If you're hoping for calm seas and snorkeling during this month, it's worth considering combining Phuket with the Gulf side—destinations like Koh Samui in August are usually much more sheltered and sunnier at this time of year.
For a broader look at weather patterns and better alternatives across the country, see our comprehensive guide on the best places to visit in Thailand in August.
Top Things to Do in Phuket in August
While August falls mid-way through the monsoon season, it doesn't mean your holiday is a washout.
The trick to a perfect August itinerary is staying flexible and choosing the right coastlines.
Since the strong winds and dangerous rip currents affect the western beaches (like Patong, Karon, and Kata), your best bet is to head to the sheltered eastern gulfs, catch the waves on dedicated surf beaches, or enjoy indoor experiences.
1. Try Surfing at Kata Beach (Phuket's Surf Season)
August is actually a pretty good time to try surfing in Phuket. Kata Beach becomes the main spot, especially for beginners.
This is when the offshore winds create the most consistent waves. You'll see professional surf schools like SSS Phuket or local instructors right on the sand near The Boathouse Phuket, offering board rentals.
Just keep an eye on the flags. If it's red, don't go in.
2. Take a Sheltered Boat Tour to Phang Nga Bay
If you want a sea experience in August, Phang Nga Bay is usually your safest bet.
The bay is more sheltered compared to open ocean areas, so water conditions are often calmer.
You can take a private speedboat or sea canoe to the iconic James Bond Island, explore the hidden lagoons and sea caves of Koh Panak, and visit Koh Panyee (the famous floating Muslim village built on stilts).
If your timing and conditions are right, some tours continue into sunset, and you might even catch a bit of bioluminescence in the water—but this is more of a bonus than something guaranteed.
3. Have a Family Beach Day at Coral Island
Coral Island is a short boat ride from Phuket and is often used as an easy beach escape when conditions on the west coast are rough.
The beach is simple, with calm shallow water near the shore, a few restaurants, and basic facilities.
You can even snorkel just a few steps from the sand, which makes it a comfortable option for families or first-time swimmers.
4. Step Back in Time in Phuket Old Town
When it starts raining in the afternoon, Phuket Old Town is an easy place to head to.
The streets here are full of old Sino-Portuguese buildings, with soft pastel colors that still look nice even on a cloudy day.
Most of the main streets have covered walkways, so you can hop between heritage cafes on Thalang Road and Soi Romanee, enjoying a hot cup of Thai milk tea while waiting out the shower.
5. Indulge in an Authentic Thai Spa
When a rain shower comes in the afternoon, it's perfect for a massage.
You'll find everything from simple local shops to resort spas, and a traditional Thai massage or oil massage is usually the most popular choice.
During the green season, many world-class resort spas—such as those at Banyan Tree Phuket or The Slate—frequently run their legendary 'Green Season' promotions, offering up to 50% off.
Important August Travel Note: Similan and Surin Islands are closed from mid-May to mid-October. In August, it's better to focus on open and sheltered areas like Phang Nga Bay or Coral Island instead.
Crowds and Costs in August
August is a golden window for value-driven luxury travelers. As part of Phuket's "green season," travel costs drop drastically compared to the peak winter months. You will find premium international resorts, private pool villas, and boutique flights offering discounts of 30% to 50% off.
In terms of crowds, Phuket is noticeably quieter in August. You can wander down iconic beaches like Kata or Karon and still find peaceful stretches of sand without much effort. World-class beach clubs and fine-dining restaurants that usually require weeks of advance booking in January are often much easier to get into, sometimes even accepting walk-ins.
It is the perfect month to experience a slower, more relaxed side of Phuket at a much better price, even if the weather is a bit less predictable.
If you are still undecided and want to compare these green season perks with our dry winter months, read our complete breakdown on the best time to visit Phuket.
What to Wear in August
Phuket is hot and tropical in August, with temperatures around 31°C (88°F). The key is to stay light and be ready for sudden rain.
Light clothes like t-shirts, linen shirts, shorts, and skirts work best. Avoid heavy fabrics like denim, which take a long time to dry in the humidity. Umbrellas aren't very practical in windy rain, so a light waterproof jacket or poncho is usually more useful.
For shoes, water-resistant sandals or quick-dry shoes are better than flip-flops on wet streets or boat decks.
Ready to Organize Your Summer Getaway?
Balancing monsoon weather with island hop logistics can be tricky. Whether you want to customize a family-friendly villa stay or design a weather-proof island itinerary, we are here to help.
Start mapping out your seamless southern Thailand holiday with our step-by-step guide on how to plan a trip to Phuket, or contact our local travel consultants directly to craft a bespoke vacation just for you.
Phuket Monthly Weather and Travel Information
Learn more about Phuket's weather and the best things to do in Phuket for each month by following the links below.