Thailand Phuket Weather in August — Climate Guide
August in Phuket is moderate
August is moderate for Phuket.
August is monsoon peak — heaviest rainfall month alongside September (240mm), 17 rainy days, and the highest cancellation rates for Phi Phi tours (30-40%). Phang Nga Bay holds up better (calmer protected waters). Korean summer break (mid-Aug 2-3 week window) drives a regional spike from Seoul, Busan, Tokyo, and Singapore.
Despite the rain, Patong + Karon stay busy with European package tourists. Restaurants, spas, Old Phuket Town, Big Buddha all operating normally. The trade-off is real: heavy rain in exchange for moderate hotel prices and the green-jungle Phuket only monsoon visitors see.
Travel score
Monsoon peak + Korean summer break overlap
August Weather at a Glance
August averages 88°F / 31°C highs and 77°F / 25°C lows with 17 rainy days and 240mm rainfall — monsoon peak alongside September. Humidity 80%. UV 10. Sunshine 6 hours. Sea 28°C rough. Daily storms reliable + occasional 3-4 day rain stretches.
August Travel Advice
Korean summer break (mid-August 2-3 week window) drives regional hotel + flight surge — book 4-6 weeks ahead from Seoul/Tokyo. Luxury resort all-inclusive stays = best monsoon strategy. Travel insurance with cancellation coverage essential. Phi Phi only if you accept 35% cancellation risk.
Flying In from Overseas
Korean summer break + Japan summer holidays drive Asia inbound spike. Direct flights from Seoul $400-650 (Korean break week peak), Tokyo $400-600. European peak holiday continues. Direct flights from London $700-1,000. Korean families head to family-friendly resorts (Club Med, JW Marriott Mai Khao).
August Pricing Trends
Korean break + European peak pricing: Patong 4-star $70-150/night, Karon family $100-220, Trisara luxury $800-2,200. Phi Phi day tour $60-95 when running. Flights from Seoul $500-750 Korean break week.
Phuket August Weather Stats
Avg High
31°C
Avg Low
25°C
Rainy Days
17
240mm total
Sunshine
6h
Daily avg
Humidity
80%
high
UV Index
10
Very high
Wind
14 km/h
Gusts 30
Sea Temp
28°C
swimming rough
Crowds
Busy
At attractions
August Sunrise & Sunset
Air Quality
PM2.5
10 μg/m³
PM10
20 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
36°C
Nighttime
27°C
Humidity and wind affect how the actual temperature feels.
Wind
14 km/h
Max gust 30 km/h
Activities Recommended for August
August Travel Pros & Cons
Pros
- Korean summer break overlap
- Lush green Phuket peak
- Luxury 5-star value remains
Cons
- Monsoon peak (heaviest rainfall)
- Phi Phi 30-40% cancellations
- West coast sea most dangerous
August Events & Festivals
- European summer holidays peak
- Korean summer break (mid-Aug)
- Mother's Day (Aug 12, national holiday for Queen's birthday)
Phuket in August — Full Picture
August is monsoon peak — heaviest rainfall month alongside September (240mm), 17 rainy days, and the highest cancellation rates for Phi Phi tours (30-40%). Phang Nga Bay holds up better (calmer protected waters). Korean summer break (mid-Aug 2-3 week window) drives a regional spike from Seoul, Busan, Tokyo, and Singapore.
Despite the rain, Patong + Karon stay busy with European package tourists. Restaurants, spas, Old Phuket Town, Big Buddha all operating normally. The trade-off is real: heavy rain in exchange for moderate hotel prices and the green-jungle Phuket only monsoon visitors see.
For honeymooners: a luxury resort stay (Trisara, Six Senses Yao Noi, Amanpuri) where you mostly stay on property with pool + spa + private dining is actually a great August choice — 40% off peak pricing and you barely notice the rain.
What to Wear & What to Pack
Same as July. Monsoon peak.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
33°C
25.3°C
10/mo
Summer (Jun·Jul·Aug)
Current31°C
25°C
16/mo
Autumn (Sep·Oct·Nov)
31°C
24°C
16.3/mo
Winter (Dec·Jan·Feb)
32°C
24°C
4/mo
Phuket Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| January (Best) | 32° | 24° | 3d·30mm | 9h | 73% | 10 | Very busy | Peak |
| February (Best) | 33° | 25° | 2d·20mm | 9h | 72% | 10 | Very busy | Peak |
| March (Best) | 33° | 25° | 5d·50mm | 9h | 73% | 11 | Busy | Peak |
| 34° | 26° | 9d·100mm | 9h | 75% | 11 | Busy | Peak | |
| 32° | 25° | 16d·230mm | 7h | 80% | 11 | Moderate | Shoulder | |
| 31° | 25° | 15d·220mm | 7h | 80% | 10 | Moderate | Low season | |
| 31° | 25° | 16d·230mm | 6h | 80% | 10 | Busy | Shoulder | |
| 31° | 25° | 17d·240mm | 6h | 80% | 10 | Busy | Shoulder | |
| 31° | 24° | 18d·270mm | 6h | 82% | 10 | Moderate | Low season | |
| 31° | 24° | 18d·280mm | 6h | 80% | 10 | Moderate | Low season | |
| 31° | 24° | 13d·180mm | 7h | 78% | 9 | Busy | Shoulder | |
| December (Best) | 31° | 23° | 7d·80mm | 8h | 75% | 9 | Very busy | Peak |
View Other Months
Phuket August Hotel Picks
Frequently Asked Questions
Is August a good time to visit Phuket?
Phuket in August is moderate. Tourist crowds are busy and flight/hotel prices are shoulder.
What's the average temperature in Phuket in August?
Phuket August averages a high of 31°C and a low of 25°C.
Does it rain much in Phuket in August?
Phuket August averages 240mm of rainfall over about 17 rainy days.
What should I wear in Phuket in August?
Same as July. Monsoon peak.
What time are sunrise and sunset in Phuket in August?
Phuket August sunrise is 06:20 and sunset is 18:35, with 12h 15min of daylight.
What's the air quality like in Phuket in August?
Phuket August air quality (AQI) averages 32, rated Good. PM2.5 averages 10μg/m³.
What activities are recommended in Phuket in August?
In August, Phuket is great for Phang Nga Bay, Luxury resort stays, Big Buddha.
Is August peak season in Phuket?
Phuket August crowds are busy and prices are shoulder. Advance reservations are strongly recommended.
Best Months to Visit Phuket
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.