Isla Mujeres in March: Weather, Sea Temperature, Crowds and Prices

ISLA MUJERES · MARCH · MEXICO

Isla Mujeres sits a short ferry ride off Cancun and Puerto Juarez. In March the afternoons reach 88.7°F and the sea off the island averages 81.2°F. That is warm enough for a full beach day and still short of April, when the average high climbs to 91.6°F. The island is small, and most visitors get around by golf cart, scooter or bicycle.

March sits between two neighbors that pull in opposite directions. February is 2.5 degrees cooler by day and records 6.8 days of measurable rain. April is 2.9 degrees hotter and records 4.2. Whether to shift your dates by four weeks depends on how you weigh those two.

On this page

• Isla Mujeres weather in March88.7°F highs, 70.5°F lows and 5.4 rain days
• Can you swim in Isla Mujeres in March?Sea at 81.2°F, and why that is a mean of daily maxima
• How busy is Isla Mujeres in March?Lodging tax at 5% or 6%, Visitax at about 293 pesos, ferry ticket rules
• Things to do in Isla Mujeres in MarchPunta Sur, Playa Norte, Garrafon and Isla Contoy
• Isla Mujeres itinerary for MarchTwo days, from the Ultramar dock to sunset at 6:57 p.m.
• Isla Mujeres in March vs February and AprilHighs of 86.2°F, 88.7°F and 91.6°F, rain days of 6.8, 5.4 and 4.2
• Is March a good time to visit Isla Mujeres?Who should book March and who should wait for April

March falls outside the Atlantic hurricane season, which runs June 1 to November 30 and peaks on September 10, with most activity between mid-August and mid-October (NOAA National Hurricane Center). A March fare does not need the refundable-booking caution a September one would.

Isla Mujeres weather in March

Every air figure here comes from Mexico’s national weather service (SMN, part of CONAGUA): 1991-2020 normals for station 23155 in Cancun. That station is on the mainland, about 8 miles across the channel, and no station on the island publishes normals. These are the nearest official numbers, not a thermometer on the sand. In March the average high is 88.7°F, the average low 70.5°F, and the month collects 1.52 inches of precipitation.

SMN counts 5.4 days of measurable rain in an average March, roughly one day in six. The station sheet does not publish the threshold behind that count, so treat it as SMN’s own definition of a rain day. With 1.52 inches for the whole month, it makes sense to put the boat or beach outing in the morning and keep the afternoon loose.

Afternoons reach 88.7°F and nights settle at 70.5°F, a swing of 18.2 degrees. Sun protection matters at midday, and a light layer is enough after dark.

On March 15 the sun rises at 6:53 a.m. and sets at 6:57 p.m. Cancun time, about 12 hours 04 minutes of daylight (sunrise-sunset.org, converted from UTC). Beach days can start early, and dinner falls after dark. Check the last return sailing before you plan to stay for sunset.

Can you swim in Isla Mujeres in March? Sea temperature

The sea surface off Isla Mujeres averages 81.2°F in March (Open-Meteo Marine API, 2015-2024). That is a mean of daily maxima, not a 24-hour average, so it reads a shade warmer than tables built on round-the-clock readings. Another source may show a slightly lower figure for the same water.

At 81.2°F the water sits well above the 70.5°F nights and about 7.5 degrees below the 88.7°F afternoon high. It feels cool against the midday heat and comfortable for a long swim or a snorkel.

We found no wind or swell series for March, so we give no wave heights. The island’s geography does answer part of the question: Playa Norte, the calmest beach, faces the north tip, where the current running along the east side breaks. Punta Sur, at the southern tip, looks out over open water.

How busy is Isla Mujeres in March? Crowds and prices

We found no occupancy series and no monthly hotel-rate series for the island, so we place March on no price curve and call no month expensive or cheap. February, March and April all fall outside hurricane season, so any price gap among them would come from demand, which we could not measure.

We could not verify how many weeks ahead rooms fill in March, so we give no lead time. The one booking rule we can state belongs to the ferry. Ultramar tickets to Isla Mujeres are valid for six months from purchase and are non-refundable, and passengers are asked to arrive 30 minutes before departure. A ticket bought early has six months to be used, and if plans change it cannot be refunded. For general booking habits, see Travel 101.

Quintana Roo’s lodging tax, the Impuesto Sobre Hospedaje, is set at 5% of the billed accommodation value, or 6% when a host or booking platform collects payment for a short-term rental (Ley del Impuesto al Hospedaje, art. 8). It is a percentage of what you are billed, so it follows the room rate up or down.

Every foreign visitor entering Quintana Roo also owes Visitax, a state fee of 2.50 UMA, about 293 pesos at the UMA’s 2026 daily value. It is a per-visitor charge and does not change with the month. We hold no March rate, tour or ferry-fare data, so we cannot point to a line where paying more buys a different March.

Things to do in Isla Mujeres in March

March is a sea month. With the water at 81.2°F, the air high at 88.7°F and hurricane season three months away, boat days and beach days both work. Boat trips to Isla Contoy, a national park and bird sanctuary north of Isla Mujeres, are commonly sold from the island.

Playa Norte is the calm-water beach. Punta Sur, at the island’s southern tip, is a clifftop park with a sculpture garden and a lighthouse overlooking open water. Garrafon, a private reef park on the south end, is commonly sold as a snorkeling and activities day pass. CONANP’s page for Isla Contoy and Garrafon’s own site did not load when we checked, so we state no admission prices or visitor limits. Confirm both with the operator.

Water changes little through these months, and the air changes a lot. The sea moves from 80.7°F in February to 82.3°F in April, a difference of 1.6 degrees. The average high climbs from 86.2°F to 91.6°F over the same stretch, and that is what decides how a clifftop like Punta Sur feels at midday.

We found no verified admission rules for the beaches, so we call none of them free or paid. What costs nothing is getting around on foot: the main town is walkable, and most visitors use golf carts, scooters or bicycles rather than a car.

Isla Mujeres itinerary for March

Day one. Take an Ultramar ferry from Puerto Juarez, Playa Tortugas (kilometer 6.5 of Boulevard Kukulcan) or Playa Caracol (kilometer 9.5), and be at the dock 30 minutes ahead. Boats arrive at the Terminal Maritima APIQROO. With sunrise at 6:53 a.m., an early crossing lands you before the high heads toward 88.7°F. Rent a golf cart, do Punta Sur in the morning, then settle at Playa Norte through midday and stay for the light until sunset at 6:57 p.m.

Day two. Book the Isla Contoy boat once the operator confirms visitor limits and fees, since we could not read CONANP’s page. If the sky turns showery, swap in a slower day: Garrafon’s reef park for snorkeling if the sea still looks inviting, or the main town on foot. Check the last return sailing before any evening plan.

Isla Mujeres in March vs February and April

All three months use the same SMN Cancun-station normals for air (1991-2020) and the same Open-Meteo marine average for the sea (2015-2024), so the gaps are like for like. From February to March the high rises 2.5 degrees and the low 1.4 degrees. April then adds 2.9 degrees to the high and 2.7 degrees to the low. Rain falls from 2.33 inches in February to 1.52 inches in March and edges back to 1.67 inches in April, while rain days keep dropping. The sea gains 0.5 degrees, then 1.1 degrees.

Shifting to April trades 1.2 fewer rain days (4.2 against 5.4) and an 82.3°F sea for highs of 91.6°F and lows of 73.2°F. Shifting back to February gives cooler highs of 86.2°F and costs 1.4 more rain days (6.8 against 5.4) and 2.33 inches of rain.

Is March a good time to visit Isla Mujeres?

Yes, for anyone who wants swimming weather without April’s heat: 88.7°F afternoons, an 81.2°F sea, 5.4 rain days and no hurricane season. The U.S. State Department rates Quintana Roo Level 2, “Exercise increased caution,” in its Mexico Travel Advisory reissued May 29, 2026, so read the current advisory before you book.

If rain days or water temperature decide it for you, prefer April: 4.2 rain days and an 82.3°F sea, against highs of 91.6°F. If cooler afternoons matter more than dry days, February gives 86.2°F highs with 6.8 rain days. To compare Isla Mujeres with other places in the same month, use where to go by month.

Among February, March and April, only March pairs the smallest rain total, 1.52 inches, with highs still under 90°F at 88.7°F.

The last word

Book March if the plan is water and sun. Cross on the Ultramar ferry (children under 1.20 meters ride at a reduced fare, and infants under 12 months travel free with a boarding pass), take a golf cart to Playa Norte, and stay until the light goes at 6:57 p.m. The sea will still be 81.2°F when you get in.

Sources & data for this guide

• Air normals for March, February and April (highs, lows, precipitation, rain days) · Servicio Meteorologico Nacional (CONAGUA), normales climatologicas 1991-2020, station 23155 (Cancun, Benito Juárez), on the mainland about 8 miles from the island · checked Sep 30, 2026
• Sea surface temperature, mean of daily maxima 2015-2024 · Open-Meteo Marine API · checked Sep 30, 2026
• Sunrise, sunset and daylight on March 15 · sunrise-sunset.org, converted from UTC to Cancun time · checked Sep 30, 2026
• Hurricane season dates and peak · NOAA National Hurricane Center · checked Sep 6 and Sep 29, 2026
• Ferry terminals, ticket validity and boarding rules · Ultramar, Ferry Isla Mujeres page · checked Sep 30, 2026
• Lodging tax (Impuesto Sobre Hospedaje) · Ley del Impuesto al Hospedaje del Estado de Quintana Roo, art. 8, Congreso del Estado de Quintana Roo · checked Sep 30, 2026
• Visitax · Ley de Derechos del Estado de Quintana Roo, art. 51-Octies · checked Sep 30, 2026
• Travel advisory level · U.S. Department of State, Mexico advisory reissued May 29, 2026 · checked Sep 30, 2026
• Editorial gaps: CONANP’s page for Isla Contoy and Garrafon’s own site did not load, so no admission prices or visitor limits appear. We found no occupancy, hotel-rate or wind and swell series for March. Descriptions of the beaches and parks are common knowledge; hours and fees change, so check operators when you book.