Playa del Carmen in July

July is the hottest month, with highs of 90°F (32°C) and a 84°F (29°C) sea. It is muggy, the chance of a wet day is 38%, and sargassum is typically heavy. Mexican school holidays start on July 10, 2027.

July at a glance

Temperature	90°F (32°C) by day, 72°F (22°C) at night
Sea temperature	84°F (29°C)
Rain	3.5 to 4.3 in per sliding 31-day period, 38% chance of a wet day
Humidity	Muggy on 100% of days (dew point measure)
Sargassum (typical)	Typically among the heaviest months. Across the Atlantic, sargassum usually peaks in June or July.
Hurricane season	In the season. Most activity comes later, from mid-August to mid-October.
Crowds	Moderate. Mexican school holidays begin on July 10, 2027, so more families travel.
Best for	Warm-water days, family holidays and the Feria del Carmen.

Long-term averages, not a forecast. A range spans the month, low to high. Climate: Weather Spark (Cozumel and Cancun airport records plus NASA MERRA-2 data, 1980 to 2016).

Weather

In July, daytime highs are 90°F (32°C) and nights are 72°F (22°C). Weather Spark's average rainfall is 3.5 to 4.3 in per sliding 31-day period, and the chance of a wet day (at least 0.04 in of rain) is 38%. The sea is 84°F (29°C). On Weather Spark's dew point measure, 100% of days are muggy.

July sits at the top of Weather Spark's hot season. Highs are 90°F (32°C), rarely falling below 85°F or going above 93°F, and muggy days are close to 100%.

Rainfall eases a little from June: the sliding 31-day average falls from 4.3 in to 3.5 in over the month, though the chance of a wet day stays at 38%.

Sea and beach

Sargassum is typically among the heaviest in June and July, and the Atlantic-wide peak is usually in June or July (University of South Florida). Recent years have run heavier than usual. This is a pattern and not a forecast, so check the beach on the day.

It is hurricane season, but most activity comes later, from mid-August to mid-October. Whale shark swimming off Isla Mujeres and Holbox is open to September 17, and sea turtles are nesting along the central Quintana Roo coast (green turtle nesting peaks in July, per CONANP). Do not touch turtles.

What is on in July

Feria del Carmen. Playa del Carmen's patron saint fair. The 2026 edition ran July 10 to 16, with free concerts and fairgrounds open from 6 pm. Dates for 2027 are not announced. (latest edition)
Playa del Carmen municipality anniversary. The city marks the creation of its municipality on July 28. In 2026 it held the 33rd anniversary session that day. (usually this time of year)
School summer holiday starts. The 2026-2027 school year ends Friday, July 9, 2027, so the summer holiday starts July 10. (date published)

Crowds and rates

July is moderate. Mexican families travel once school ends, so beaches and restaurants are busier than in June.

See dates and rates

What to pack

Light, quick-dry clothes, a hat, high-factor sunscreen, a compact rain jacket, water shoes, a waterproof phone pouch and insect repellent.

Plan July

Early mornings in the water and afternoons in the shade work well in July. A few places to start.

Questions

How hot is Playa del Carmen in July?

Highs are 90°F (32°C) and lows are 72°F (22°C), and it is muggy on nearly every day (Weather Spark). Plan outdoor time for the morning and cool off in the water.

Is there sargassum in Playa del Carmen in July?

Typically yes. June and July are usually the heaviest months across the Atlantic and on the Quintana Roo coast. Amounts change by beach and by day, so check conditions before you go.

Does it rain a lot in Playa del Carmen in July?

There is a 38% chance of a wet day, with 3.5 to 4.3 in per sliding 31-day period. Rainfall eases slightly through the month (Weather Spark).

Is July crowded in Playa del Carmen?

Moderately. Mexican school holidays begin July 10, 2027, and the Feria del Carmen ran July 10 to 16 in 2026, so expect more families than in June.

Sources

Every figure on this page comes from the sources below. Climate numbers are long-term averages from one source for all twelve months. Sargassum is described as a typical pattern and is never a forecast.