Puerto Morelos has a tropical climate with hot, humid weather all year and a clear split between a drier season and a rainy season. The town sits on the Caribbean coast of the Yucatan Peninsula, about 30 km (18 mi) south of Cancun. Daytime highs stay between 27C and 33C every month, and the sea is warm enough for swimming year round at 26C to 29C. Use this guide with the things to do in Puerto Morelos to plan around the sun and the showers.
Puerto Morelos Weather at a Glance
The annual average temperature is 26.3C (79.3F), and the town receives about 1,220 mm (48 in) of rain per year. July and August are the hottest months with a mean of 28.5C (83.3F), while January is the coolest at 23.4C (74.1F). September and October are the wettest months with 185 mm (7.3 in) of rain each. Start with the guide to Puerto Morelos to see how the town, the reef, and the seasons fit together.
| Month | Avg High (C) | Avg Low (C) | Rain (mm) | Sea (C) |
|---|---|---|---|---|
| January | 27.6 | 19.2 | 80 | 26 |
| February | 28.4 | 19.4 | 45 | 26 |
| March | 29.1 | 20.4 | 40 | 26 |
| April | 30.4 | 22.2 | 55 | 26.5 |
| May | 31.6 | 23.9 | 100 | 27.5 |
| June | 31.8 | 25.0 | 140 | 28 |
| July | 32.5 | 24.5 | 90 | 28.5 |
| August | 32.8 | 24.1 | 125 | 29 |
| September | 32.0 | 23.8 | 185 | 29 |
| October | 30.9 | 23.2 | 185 | 28.5 |
| November | 29.1 | 20.9 | 100 | 27.5 |
| December | 28.1 | 19.7 | 75 | 27 |
Puerto Morelos Weather in the Dry Season (November to April)
November through April is the drier, slightly cooler half of the year. February is the second driest month with 45 mm (1.8 in) of rain, and March is the driest at 40 mm (1.6 in). Highs run 27C to 30C, and nights cool to 19C to 22C, so you will want a light sweater after dark. From mid-November to mid-March, a wind called the norte can blow in from the United States for a few days at a time, dropping nighttime lows to 10C to 12C (50F to 54F) and keeping daytime highs near 20C to 22C. If you want a sheltered base for the winter sun, the Puerto Morelos neighborhoods guide compares the beachside and inland zones.
These cool spells are short and rarely spoil a whole week, but they are the main reason the best time to visit Puerto Morelos starts in mid-March rather than January. If you visit in December or January, pack one warm layer for the evenings.
Puerto Morelos Weather in the Rainy Season (May to October)
May through October is hot, muggy, and wet. Rain usually arrives as short, heavy afternoon or evening downpours rather than all-day rain, so mornings stay usable for snorkeling and beach time. September and October each bring about 185 mm (7.3 in) of rain over 12 to 13 days, and August averages 125 mm (4.9 in) over 10 days. July is a small dry break with 90 mm (3.5 in), useful to know when planning a summer trip. The Puerto Morelos travel tips guide covers what to pack for the wet months.
This is also hurricane season, which officially runs June 1 to November 30, with the highest risk from August through October. Resorts and the town have solid storm protocols, but trip insurance is worth buying if you travel in those months. Check the Puerto Morelos events and festivals calendar too, since several festivals fall in this period.
Puerto Morelos Weather: Humidity, Sunshine, and Sea Temperature
Humidity is high all year, typically 75 to 85 percent, and feels highest from May to October. Sunshine hours peak in the dry season and drop slightly in the wet months. The Caribbean sea temperature ranges from 26C (79F) in winter to 29C (84F) in August and September, which makes Puerto Morelos a year round swimming and snorkeling destination. The table above covers the month to month reef conditions, and you can pair your dates with the where to stay in Puerto Morelos options.
