Weather in Hat Yai in April

A hard month. April asks something of you. Go in knowing what. You should expect rain on 19 days of the month, which is more days wet than dry.

April ranks 11 of 12 — near the bottom of Hat Yai'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 19 days, 3 of them heavy. Enough to need a plan B, not enough to need a plan around it. Natural fibres and a second shirt for the day. At 82% nothing dries, including you.

What the averages hide

Averages flatten a month, and this one hides a few things: 22 days top 30 °C, making the heat continuous rather than occasional; the day barely swings — 5.2 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest April day reached 36.2 °C and the coldest night fell to 23.3 °C, and the wettest single day dropped 49 mm — roughly 43% of the month's rain in one day.

April is moderately variable: 15 mm in the driest year against 219 mm in the wettest, around an average of 115 mm. Roughly two Aprils in three land near that average, and the third does something else entirely.

Wind is light at 7.6 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 82%, high enough to notice on the warm days without dominating them.

How April sits in the year

Temperatures hold steady either side: 30 °C in March, 31 here, 30.7 in May. Nothing about the timing within the month matters much. Rain is the thing that moves: May brings 8 days more of it, so the earlier half of a flexible trip is the safer half.

Daylight in April

Hat Yai sits close enough to the equator that daylight barely moves all year — 12.3 hours in April, against a range of just 0.8 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

Sea temperature

The sea sits at about 29.9 °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 Hat Yai versus nearby

If Hat Yai is one option among several, the nearby comparison is worth making. Kota Kuala Muda is close enough to be a coin toss — within a degree on temperature, 5 days more rain. Krabi is close enough to be a coin toss — within a degree on temperature, 1 day more rain.

So: April is a compromise. February is 32 points better and is what Hat Yai 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 Hat Yai

See all twelve months in Hat Yai, or where else to go in April.