Weather in Cancun in June

How June compares

June is the 4th warmest month of the year in Cancun and ranks 30th of 134 destinations we compare for June - see where else is hot in June. Within Mexico it is 5th of 5 (Mexico in June). Against London's average high of 19.6°C in June, Cancun is 9.6°C warmer by day and 14.6°C warmer at night.

Daytime and night-time in June

The typical June day in Cancun peaks at 29.2°C, but that is an average: the warmest 10% of days reach 30.3°C or more. About 100% of days top 25°C and 1 in 5 pass 30°C. Nights average 25.9°C; one night in ten drops to 24.6°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest June day here reached 32.8°C (2017-06-08) and the coldest night 22.7°C (2018-06-04).

Rain in June

Wet (more than 8 rainy days): about 19 days with 1 mm or more, 167 mm in total. Year to year it varies a lot - the wettest June was 1993 with 291 mm, the driest 2001 with 40 mm. Humidity averages 82%, which makes the heat feel heavier than the thermometer suggests.

Sea temperature in June

The sea averages 28.1°C - warm enough to swim (22°c+). Depending on the year it ranges from 27.8°C to 28.5°C. For the warmest sea here, come in September (28.9°C).

Sunshine and daylight

Around 5.3 hours of sunshine a day (estimated from cloud cover), 13.3 hours of daylight: the sun rises about 06:05 and sets about 19:30 local time in mid-June. Average cloud cover is 60%.

Is June a good time to visit Cancun?

It is a reasonable choice: hot days but expect showers. The best months for Cancun on our scoring are April, March, February; months averaging 25°C or more: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec.

Hot days, with little relief at night

The daytime average sounds manageable, but humidity of 82% makes June a sticky prospect. Light, loose clothing and access to air conditioning are sensible priorities, especially if you struggle to sleep in warmth. Nights average 25.9°C, so evenings are not a reliable chance to cool down. Every day reaches 25°C in the figures, while 22% reach 30°C: expect consistent heat rather than treating it as an occasional spell. Keep demanding outdoor plans away from midday where possible, take breaks in the shade, and pack clothes that are comfortable when you feel hot and damp.

Rain is a real planning constraint

With about 19 rainy days, June is not a strong choice if your holiday depends on staying outdoors without interruption. That does not establish how long rain lasts on any given day, so neither constant downpours nor brief showers should be assumed. Sunshine averages about 5.3 hours within 13.3 hours of daylight, leaving plenty of daylight but no promise of clear skies throughout it. Keep outdoor plans flexible and have something sheltered in mind rather than filling every day with weather-dependent activities. A lightweight waterproof is useful, though heavy rainwear is likely to feel uncomfortable in the humidity.

Warm swimming water is the main draw

At 28.1°C, the sea is warm enough for comfortable swimming rather than a bracing dip. That makes June a reasonable fit for a holiday built around time in the water, provided you can adjust plans when the weather turns. Do not expect the sea to offer a sharply cooling contrast to the air, though. For a UK traveller, the bigger decision is accepting wet weather after a long-haul journey, not worrying about feeling cold. If hot evenings and warm swims appeal, June can work; if reliable outdoor time matters more, its wet-weather trade-off is harder to justify.