Ko Phi Phi (Phi Phi) weather in April
April in Ko Phi Phi: sweltering, rainy, with muggy air — fine if you can take 35°C afternoons.
Updated September 2026 · climate normals from ERA5 reanalysis
#5 of 12 months in Ko Phi Phi · #625 of 1413 destinations to visit in April · comfort 80/100 (tier A)
- Days
- 29°C
- Nights
- 27°C
- Wet days
- 17
- Sun
- 10.5 h
- Humidity
- 79%
- Daylight
- 12 h

Traveller notes on Ko Phi Phi in April
Notes from nearby Krabi (40 km away)
Ko Phi Phi doesn't have its own notes for April yet — these are about Krabi, close enough to share the season.
Regulars call this the peak of hot season, hot in a way that has to be actively managed rather than just endured - the standard advice is to plan the day around a pool or the ocean rather than sightseeing through the worst of the midday heat. Our row backs the intensity, 34.5C reading as a real 42C, over 24.3C nights, with 182.5mm of rain across 22 days - the pre-monsoon pattern regulars describe as a hot, sunny day interrupted by a quick, sometimes heavy evening thunderstorm rather than sustained rain. Mid-month brings Songkran, Thai New Year, when the water-fight tradition spills into the streets and towns get noticeably busier and louder than the rest of the month. The sea offers real relief at 31.2C, warm enough that it cools rather than merely wets. The record: humidity 82 percent, 10.3 hours of sun and AQI 54.
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.
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.
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.
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.
Add your own note from Ko Phi Phi's card on the map.
Ko Phi Phi climate normals — April
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Ko Phi Phi in April
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 crowdsSongkran, Dry season, flat Andaman, Long summer break in Thailand(estimated)
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.
Best weatherFair weatherToughest weather
What's on in Ko Phi Phi in April
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Festival
Songkran
13–15 AprWater-festival New YearCrowdedThree days of water fights through the village lanes, which on an island this narrow means everyone. The last big week before the monsoon empties the place. Source ↗
- Season
Dry season, flat Andaman
1 Nov – 20 Apr · usuallyCrowdedGlass water in the bays, ferries from Krabi and Phuket running full, and Tonsai village at its busiest. Day boats from both mainland ports arrive by ten and leave at four.
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?
Ko Phi Phi in April — FAQ
- Is April a good time to visit Ko Phi Phi?
- April in Ko Phi Phi: sweltering, rainy, with muggy air — fine if you can take 35°C afternoons. It ranks #5 of 12 months for Ko Phi Phi on SeasonMap's comfort score (80/100).
- What is the weather like in Ko Phi Phi in April?
- In April, Ko Phi Phi averages a daily high of 29.1°C and a low of 27°C, with about 130.2 mm of rain over roughly 17.1 rainy days.
- What is the air quality in Ko Phi Phi in April?
- Ko Phi Phi has a mean US Air Quality Index of about 51 in April.
Within 300 km: Krabi's Songkran on 13–15 Apr, and Phuket's Songkran on 13–15 Apr.