Weather in Krabi in March

Shoulder season. March is shoulder season in Krabi — cheaper, quieter, and a genuine gamble. Highs average 30.9 °C, lows 25.5 °C, and rain falls on 12 days — nothing in the month is working against you.

March ranks 3 of 12 in Krabi. Only February scores clearly higher, and the difference is small enough to be settled by price rather than weather.

Rain on 12 days, 3 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 30.9 °C days and 25.5 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 21 days top 30 °C, making the heat continuous rather than occasional; the day barely swings — 5.3 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest March day reached 34.6 °C and the coldest night fell to 22.5 °C, and the wettest single day dropped 98 mm — roughly 92% of the month's rain in one day.

This is the volatile part. March rainfall has ranged from 2 mm to 552 mm across the twenty years measured — a 550 mm spread around an average of 106 mm. The average is real but almost no individual March looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 5.5 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 78%, high enough to notice on the warm days without dominating them.

How March sits in the year

Temperatures hold steady either side: 29.6 °C in February, 30.9 here, 30.9 in April. Nothing about the timing within the month matters much. Rain is the thing that moves: April brings 8 days more of it, so the earlier half of a flexible trip is the safer half.

Daylight in March

Krabi sits close enough to the equator that daylight barely moves all year — 12.1 hours in March, against a range of just 0.9 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

Sea temperature

The sea sits at about 29.6 °C in March — warm enough that the water offers no relief from the heat. The sea peaks at 30.4 °C in May and bottoms out at 28.6 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.

How busy it gets

Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

March in Krabi versus nearby

If Krabi is one option among several, the nearby comparison is worth making. Surat Thani is close enough to be a coin toss — within a degree on temperature, 1 day less rain. Hat Yai is close enough to be a coin toss — within a degree on temperature, the same number of rain days.

So: March is a compromise. February is 20 points better and is what Krabi is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Krabi

See all twelve months in Krabi, or where else to go in March.