Weather in Krabi in April

A hard month. April is a hard month in Krabi, and worth planning around. You should expect rain on 20 days of the month, which is more days wet than dry.

April ranks 12 of 12 — near the bottom of Krabi's year. February is the month that works, and the swing between the two is 32 points, which is a different holiday rather than a slightly better one.

Rain on 20 of the month's 30 days, 4 of them heavy. At that frequency a wet-weather backup is not a contingency, it is the itinerary — book the indoor things first and treat the clear days as the bonus. Pack for 30.9 °C days and 26.8 °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: 20 days top 30 °C, making the heat continuous rather than occasional; the day barely swings — 4.2 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest April day reached 35.4 °C and the coldest night fell to 24.6 °C, and the wettest single day dropped 36 mm — roughly 28% of the month's rain in one day.

April is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest April on record still delivered 220 mm against 31 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 129 mm average is a reasonable planning figure, not a promise.

Wind is light at 5.2 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 80%, high enough to notice on the warm days without dominating them.

How April sits in the year

Temperatures hold steady either side: 30.9 °C in March, 30.9 here, 29.6 in May. Nothing about the timing within the month matters much. Rain is the thing that moves: May brings 6 days more of it, so the earlier half of a flexible trip is the safer half.

Daylight in April

Krabi sits close enough to the equator that daylight barely moves all year — 12.3 hours in April, 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 30.3 °C in April — warm enough that the water offers no relief from the heat. This is the warmest the water gets all year.

How busy it gets

Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.

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

April 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, 4 days less rain. Hat Yai is close enough to be a coin toss — within a degree on temperature, 1 day less rain.

So: April is a compromise. February is 32 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 April.