When To Go · Destination Guide

Koh Phi Phi (Phi Phi Islands)

Limestone walls, coral pinnacles, and iconic lagoons in Thailand's Andaman Sea

Updated Jan 23, 2026 • 17 sources

When to go

Best time to visit Koh Phi Phi (Phi Phi Islands)

Phi Phi is a yearround destination, but conditions change with Thailand's monsoon cycle.

Best overall window

Drier weather, calmer seas, and better chances of clear water. Air feels less humid and boat schedules are most reliable.

Outside that window

Wetter southwest monsoon period. Seas can build, winds can exceed 25 km/h in squalls, and some itineraries are weatherdependent.

Start with the overall answer, then switch only when scuba, freedive, snorkel, or topside timing changes the trip in a meaningful way.

The overall row stays visible so you can compare it against the currently selected scope.

BestGoodTradeoffsMore variable

Scope	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Overall	Overall - Jan: Best	Overall - Feb: Best	Overall - Mar: Best	Overall - Apr: Good	Overall - May: Good	Overall - Jun: Tradeoffs	Overall - Jul: Tradeoffs	Overall - Aug: Tradeoffs	Overall - Sep: Tradeoffs	Overall - Oct: Good	Overall - Nov: Best	Overall - Dec: Best

These do not replace the overall planner. Use them only if a specific animal or event is driving your trip dates.

Blacktip reef shark activity in the Maya Bay region
Best for Snorkel, Scuba
Jun to Aug
JanFebMarAprMayJunJulAugSepOctNovDec
Researchers have documented strong blacktip reef shark presence in the Maya Bay area in midyear.
Turtle encounters on Phi Phi walls and reefs
Best for Scuba, Snorkel
Nov to May
JanFebMarAprMayJunJulAugSepOctNovDec
Green and hawksbill turtle sightings are common on calmerseason dives like Palong Wall and the Bida Islands, especially when visibility improves.
Songkran water festival (Thailand wide)
Best for Topside
Apr
JanFebMarAprMayJunJulAugSepOctNovDec
Expect a lively, splashheavy atmosphere across Thailand during Songkran.
Loy Krathong lantern and floating offerings (Thailand wide)
Best for Topside
Nov
JanFebMarAprMayJunJulAugSepOctNovDec
Many Thai destinations celebrate Loy Krathong with floating offerings and lanterns.
Bioluminescent plankton night swims (conditions-dependent)
Best for Topside, Snorkel
May to Sep
JanFebMarAprMayJunJulAugSepOctNovDec
Some night boat tours look for glowing plankton in dark bays.

Maya Bay has used seasonal closures in recent years, often in August and September, to protect ecosystems and improve safety.

Apr to May, Oct: Hotter days and mixed seas. Good travel value if you can accept occasional rain and changing visibility.
Jun to Sep: Wetter southwest monsoon period. Seas can build, winds can exceed 25 km/h in squalls, and some itineraries are weather-dependent.

Built from climate references, access rules, and destination operators. Wildlife timing and route flexibility can shift year to year.