Weather in Cancún in April

Prime time. If you get to pick your dates, April is the one. Highs average 29.5 °C, lows 24.2 °C, and rain falls on 5 days — nothing in the month is working against you.

April ranks 5 of 12 in Cancún: past the worst of the year but short of February, which is the month to book if the dates are open.

Rain falls on only 5 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 29.5 °C days and 24.2 °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: 10 days top 30 °C — hot spells arrive, but they break; the day barely swings — 5.3 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest April day reached 32.5 °C and the coldest night fell to 17.8 °C, and the wettest single day dropped 57 mm — roughly 139% of the month's rain in one day.

This is the volatile part. April rainfall has ranged from 3 mm to 212 mm across the twenty years measured — a 209 mm spread around an average of 41 mm. The average is real but almost no individual April looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 9 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 73%.

How April sits in the year

Temperatures hold steady either side: 28.2 °C in March, 29.5 here, 30.3 in May. Nothing about the timing within the month matters much. Rain is the thing that moves: May brings 7 days more of it, so the earlier half of a flexible trip is the safer half.

Daylight in April

12.6 hours of daylight, gaining 0.6 hours across the month. That is between Cancún's extremes of 13.4 and 10.9 hours, so days are long enough not to constrain the plan.

Sea temperature

The sea sits at about 26 °C in April — warm enough to stay in as long as you like. The sea peaks at 29 °C in August and bottoms out at 25.1 °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

Busy. Popular without being frantic; book the things you care about, improvise the rest.

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

April in Cancún versus nearby

If Cancún is one option among several, the nearby comparison is worth making. Mérida is the weaker option in April — 6.4 °C warmer, the same number of rain days. Key West is close enough to be a coin toss — 4 °C cooler, 2 days more rain.

So: April is effectively as good as it gets here — 6 points behind February, which is inside the margin where the weather stops being the deciding factor and price starts being it.

Every month in Cancún

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