Ko Phi Phi (Phi Phi) weather in August

August in Ko Phi Phi: hot, soaked, with clean air — fine if you can take 23 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Ko Phi Phi🇹🇭 Thailand · Andaman Coast · Island69
  1. 85Jan
  2. 91Feb
  3. 90Mar
  4. 80Apr
  5. 67May
  6. 71Jun
  7. 72Jul
  8. 69Aug
  9. 60Sep
  10. 58Oct
  11. 62Nov
  12. 82Dec

#8 of 12 months in Ko Phi Phi · #946 of 1413 destinations to visit in August · comfort 69/100 (tier C)

Days
28°C
Nights
27°C
Wet days
23
Sun
9.5 h
Humidity
81%
Daylight
12 h
Ko Phi Phi, Thailand
Photo: Kirandeep Singh Walia · Pexels

Traveller notes on Ko Phi Phi in August

Forum posters describe a typical August pattern of brief but heavy showers followed by plenty of sunshine in between, with temperatures generally in the 70-90F (20-33C) range and seas that can turn extremely rough during a squall. Posters report real variability - one visitor described three glorious days followed by three rainy ones, advising to enjoy the good days and bring a good book for the rest, while another found downpours were typically over within half an hour before sunshine returned. Posters consistently note that locals actually favor June through August specifically because the weather is generally fine and popular spots stay less crowded, with lower prices than peak season as a real bonus for anyone willing to accept the rain risk.
Tripadvisor community · August · 1 month ago · Read more on Tripadvisor ↗

Other months in Ko Phi Phi

Regulars are specific this island falls within the region's dry season alongside December, typically drier than nearby Koh Samui even if outcomes genuinely vary year to year - most years staying mostly dry with a good cooling breeze, though some years bring real storms, strong winds and rough seas instead. Our row backs that hot, genuinely wet read, 28.4C reading as a hot 32C, over 25.6C nights feeling 28C, with a substantial 85.1mm of rain across 7.7 days and humidity at 78 percent. Regulars are consistent nearby Phuket reads as about as good as it gets this time of year, plenty of sunshine and very little rain, a useful comparison point if conditions here turn unsettled. The sea sits at a bath-warm 28.6C. The record: 10.2 hours of sun, a 24.1 kph wind and AQI 45.
DrierThanSamuiButVariesYearToYear · January · 1 month ago · Read more on Tripadvisor ↗
March is described on the Thai boards as one of the driest and hottest months of the year, and with April it is the peak of the Andaman season - so the weather that brings everyone here is also what fills the boats. Our row agrees on all three counts: 30.4mm of rain across 6.8 days, 29C reading as 35C at 77 percent humidity, and nights that never drop below 26.6C. The sea is 29.2C, which is warm enough to be no relief at all. The one mercy is a 22.2 kph breeze off the water. Anything strenuous - the viewpoint climb in particular - belongs to the first hours of daylight. The record: 10.8 hours of sun and AQI 48.
DriestHottestAndFullest · March · 1 month ago · Read more on Tripadvisor ↗
Ko Phi Phi's forum calls February one of the driest, sunniest stretches of the year — regulars who visited in January reported blue skies and no rain, and expect February to run much the same. It's busier than the shoulder months of May and June, but regulars say it's a step down from the Christmas and New Year crush.
Tripadvisor community · February · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Ko Phi Phi's card on the map.

Ko Phi Phi climate normals — August

Daytime high28°C / 83°F🥵 hot
Nighttime low27°C / 80°F
Feels like (high)33°C / 91°F
Sea temperature30°C / 86°F♨️ bath-warm
Rainfall237 mm / 9.3 in⛈ soaked
Rainy days23 days
Humidity81%💦 very humid
Dew point24°C / 75°F
Sunshine9.5 h/day
Daylight12.4 h
Wind24 km/h / 15 mph
Air quality (US AQI)29🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Ko Phi Phi in August

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Peak crowdstravelers describe it as peak season, school holidays in 4 of the markets that fill it

Sourced from traveler notes: “…and popular spots stay less crowded, with lower prices than peak season as a real bonus for anyone willing to accept the rain risk.” — Tripadvisor community

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Best months for Ko Phi Phi's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Fair weatherKo Phi Phi's weather peaks January–March, best around February.

JFMAMJJASOND

Best weatherFair weatherToughest weather

What's on in Ko Phi Phi in August

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Southwest monsoon

    15 May – 31 Oct · usuallyRisk

    Swell on the exposed side, occasional cancelled ferries, and a village running at maybe a third of its capacity. Rooms cost a fraction of what they do in January.

  • Closure

    Maya Bay closed

    1 Aug – 30 Sep

    The park authority shuts the bay for two months every year so the reef and the beach can recover. Boat tours still run around the island; they just cannot go in. Source ↗

  • Season

    Wet season

    MonsoonRisk

    23 rainy days and about 237 mm in the month — the real kind of rainy season, not afternoon showers.

    from the climate normals

What's on around the world in August →

Nearby, and something's on

Within 300 km of Ko Phi Phi — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Ko Phi Phi?

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Ko Phi Phi in August — FAQ

Is August a good time to visit Ko Phi Phi?
August in Ko Phi Phi: hot, soaked, with clean air — fine if you can take 23 rainy days. It ranks #8 of 12 months for Ko Phi Phi on SeasonMap's comfort score (69/100).
What is the weather like in Ko Phi Phi in August?
In August, Ko Phi Phi averages a daily high of 28.4°C and a low of 26.6°C, with about 237.1 mm of rain over roughly 22.6 rainy days.
What is the air quality in Ko Phi Phi in August?
Ko Phi Phi has a mean US Air Quality Index of about 29 in August.

Within 300 km: Ko Samui's Gulf dry season around 15 Jan – 31 Aug, and Ko Pha Ngan's Gulf dry season around 15 Jan – 31 Aug.