Krabi is a coastal area of Thailand on the Andaman Sea, with 21 tracked beaches. The sea here ranges from about 27°C in the coolest month to 30°C at the summer peak, with roughly 12 months a year sitting above 20°C — the level most swimmers describe as pleasant without a wetsuit. Use the beach list below to check the current sea temperature at each spot before you head out.
Krabi
21 tracked beaches in Krabi, Thailand, with live Andaman Sea temperatures.
Best time to swim in Krabi
The sea in Krabi peaks in April, when the water averages around 30°C.
The main swimming season runs from January – December, when surface temperatures stay comfortable for extended sessions.
On average, 12 months a year sit above 20°C — the threshold most swimmers describe as pleasant without a wetsuit.
The coldest month is typically January at around 27°C, when cold-water swimmers dominate the coast.
Krabi sea temperature history
Long-term climatology for Krabi shows an annual mean sea temperature of 29°C, ranging from 27°C in winter to 30°C at the summer peak.
The seasonal swing is roughly 3°C between the coldest and warmest month — a useful yardstick when comparing years or checking whether the current sea is running above or below average.
Recent decades have trended slightly warmer at Krabi, in line with regional sea-surface temperature records for the wider basin.
Monthly averages below are drawn from multi-decadal climatology and are updated as new observations arrive.
Values are area averages; individual beaches vary by exposure and depth.
Krabi sea temperature: frequently asked questions
What is the warmest month to swim in Krabi?
April is the warmest month in Krabi, when the sea averages about 30°C. Late-season warmth often persists a few weeks after peak.
When is the sea coldest in Krabi?
The coldest month in Krabi is typically January, when the water averages around 27°C. Cold-water swimmers and surfers dominate this period.
When can you swim in Krabi without a wetsuit?
The main swimming season in Krabi runs from January – December — about 12 months a year when the sea sits above 20°C, the level most swimmers describe as pleasant without a wetsuit.
Do I need a wetsuit in Krabi?
Krabi stays warm year-round, so most swimmers never need a wetsuit — a rash guard is usually enough for sun and wildlife protection.
What is the average sea temperature in Krabi?
The long-term annual mean sea temperature in Krabi is about 29°C, based on multi-decadal climatology of the surrounding waters.
How do I check the current sea temperature in Krabi?
The live reading at the top of this page shows the current sea temperature in Krabi, updated hourly from marine buoy and satellite data. The 7-day forecast covers water, air, waves, wind and UV for the week ahead.
Beaches in the Krabi
Ranked by current live sea temperature.
- 1Railay BeachKrabi, Thailand—
- 2Ao Nang BeachKrabi, Thailand—
- 3Maya BayPhi Phi, Thailand—
- 4Long Beach Phi PhiPhi Phi, Thailand—
- 5Maya BayPhi Phi, Thailand—
- 6Long Beach Phi PhiPhi Phi, Thailand—
- 7Railay BeachKrabi, Thailand—
- 8Tonsai BeachKrabi, Thailand—
- 9Bamboo IslandPhi Phi, Thailand—
- 10Klong Dao BeachKoh Lanta, Thailand—
- 11Maya BayKrabi, Thailand—
- 12Railay BeachKrabi, Thailand—
- 13Ao Nang BeachKrabi, Thailand—
- 14Railay West BeachKrabi, Thailand—
- 15Railay Beach WestKrabi, Thailand—
- 16Railay Beach EastKrabi, Thailand—
- 17Phra Nang Cave BeachKrabi, Thailand—
- 18Tonsai BeachKrabi, Thailand—
- 19Klong Muang BeachKrabi, Thailand—
- 20Tubkaek BeachKrabi, Thailand—
- 21Nopparat Thara BeachKrabi, Thailand—
