On the evening of November 13, 2026, the official sources showed very little seaweed around Cancun: Mexico’s Navy rated sargassum escaso (scarce), and the state’s November 11 map had the whole Hotel Zone at its low level. Conditions change with the wind, so check the state traffic-light map, the Navy’s daily bulletin, a webcam, the beach flag and the radar, the night before and the morning of.
No brochure can tell you what the sand in front of your hotel will look like tomorrow at seven. Seaweed, wind and rain here change from day to day, and from beach to beach. The official sources are free and mostly in Spanish, so here they are in plain English, linked and dated, with a routine for a beach day or a family photo session.
Right Now: What the Sources Said on November 13
A dated snapshot from the evening of Friday, November 13, 2026: an example of how the sources read, not a promise for your trip. We opened every source on this page again on November 14, 2026. For the usual pattern, see our month-by-month seaweed season guide.
- Mexico’s Navy (SEMAR), daily bulletin No. 1612: traffic light escaso (scarce), shown in green. Four small groups of sargassum near the coast; three with no chance of arriving within 24 hours, and one, about 6 tons, with a chance of arriving south of Tulum.
- State traffic-light map (SEMA), northern zone, November 11: its legend counted 100 beaches: 86 low, 8 moderate, 3 abundant, 3 with none and 0 excessive. The whole Hotel Zone, from Playa Las Perlas to Punta Nizuc, was green, and no Isla Mujeres point was yellow, orange or red. It was the latest edition we found.
- University of South Florida, outlook of October 31: sargassum more than halved in most regions during October, though still high for the season, and should keep decreasing until possibly the end of November or December.
- National Hurricane Center, 7:00 pm: no tropical cyclones in the Atlantic, and none expected to form in the next 7 days.
The Sargassum Traffic Light, Beach by Beach
The most useful source for a family is the traffic-light map that Quintana Roo’s environment ministry, SEMA, posts on its official Facebook page (see the November 11 update). The northern-zone edition rates 100 named points from Holbox to Tulum, Cozumel included, and names the Cancun beaches you will actually walk on, from Las Perlas and Langosta to Delfines and Punta Nizuc, plus Isla Mujeres, Playa Mujeres and Costa Mujeres.
Each point gets one of five colors. The legend, translated:
- Blue, sin sargazo: none.
- Green, bajo: low.
- Yellow, moderado: moderate.
- Orange, abundante: abundant.
- Red, excesivo: excessive.
Three habits help. Check the date on the image first, because last week’s map looks exactly like today’s. Read your beach and the points on either side, because a resort between two named points gets no color of its own. And green means low, not none: only blue means a clean line. The November 11 edition also printed wind, wave height and temperature.
The Navy’s Daily Bulletin: What Is on the Way
The map shows what is on the sand; Mexico’s Navy, SEMAR, tracks what is floating toward it. The Navy has issued sargassum bulletins since 2019, prepared by its Gulf and Caribbean oceanographic institute. The daily bulletin shows the groups seen by satellite near the coast over the last seven days, their estimated tons, a 24-hour drift forecast for each, coastal currents, wind and a one-word traffic light.
Read two things: the possible-arrival column, which says whether and where a group could land, and the traffic light, which, according to the bulletin, weighs currents and wind together with daily beach photos from Quintana Roo’s federal beach-zone office (ZOFEMAT). On November 13 it read escaso, scarce.
The Satellite View: The Weeks Ahead
The University of South Florida’s Optical Oceanography Lab runs the Sargassum Watch System, with daily satellite imagery and a monthly outlook for the Caribbean and the Gulf. The lab says its bulletin should not be used to predict conditions at a specific beach, so use it in the weeks before your trip and leave the morning itself to the map and the webcams.
Its October 31, 2026 outlook expected sargassum to keep falling until possibly the end of November or December, with some Caribbean beaching still likely but much less severe than in previous months.
Live Webcams: Hotel Zone and Isla Mujeres
These four webcams, run by Webcams de Mexico, were streaming live when we checked on November 13, 2026:
- Punta Cancun: a panoramic view, with the camera at Krystal Cancun.
- Toward the south of Cancun: a panoramic view looking south, with the camera at Live Aqua Cancun in the Hotel Zone.
- Playa Langosta: a view of the beach, on the north shore of the Hotel Zone.
- Isla Mujeres: a panoramic view of Playa Norte, with the camera at Ixchel Beach Hotel.
Read a webcam in thirty seconds. Start with the waterline, where sargassum shows as a dark brown band on the sand or a rusty tint in the shallows. Then the sea: rows of whitecaps mean wind, and waves for small swimmers. A wide rooftop view can miss a thin fresh line, and if a feed is down, try another.
Beach Flags in Cancun: What the Colors Mean
On Cancun’s public beaches, municipal lifeguards set the flags on the sand or on their towers. The municipal Civil Protection office lists three colors in a press release of October 26, 2024 (a Word file, in Spanish):
- Green: safe to swim.
- Yellow: caution.
- Red: entering the sea is prohibited.
The same release says lifeguards watch public beaches from 9:00 am to 5:00 pm, and asks visitors to check the flags on arrival and follow the lifeguards. An earlier release, from July 20, 2023, says that at closing they leave the red flag up. So at sunrise, a red flag may be last night’s, and the tower may be empty. If your resort posts its own flags, follow those.
For photos, a red flag does not cancel the beach, but it does mean no wading and no splashing that day. Our guide to the safest Cancun beaches for family photos with kids shows where the water is usually calmest.
Rain, Wind and Storms: Radar and the Hurricane Center
For the sky, use Mexico’s National Weather Service, SMN. Its forecast by municipality covers Benito Juarez, which includes Cancun, and Isla Mujeres, and its radar viewer includes a Cancun radar, posting a fresh image about every eight minutes late on November 13. A radar loop tells you what a forecast icon cannot: whether a shower is arriving or leaving.
From June 1 to November 30, the official Atlantic hurricane season, add the National Hurricane Center, whose Tropical Weather Outlook gives the chance of a storm forming in the next seven days. The center puts the peak on September 10, with most activity from mid-August to mid-October; our hurricane season guide covers trips in those months.
The Night-Before and Morning-Of Check
With a session booked, take a first look two evenings before: cancellation is free up to one day before, so that is when a change of date still costs nothing. Then:
The night before
- Open the latest traffic-light map and find your beach and its neighbors.
- Read the Navy bulletin’s possible-arrival column and its traffic light.
- Check the SMN forecast for Benito Juarez or Isla Mujeres, wind included.
- From June 1 to November 30, read the hurricane center’s seven-day outlook.
- Watch the webcam nearest your hotel while it is still light.
The morning of
- Look at the waterline from your balcony, or on a webcam once it is light.
- Open the radar loop and see which way any rain is moving.
- Read the flag, remembering that before 9:00 am a public beach may still show last night’s red.
- Trust your nose: if you can smell seaweed from the path, it has been sitting a while.
For a 6:30 am start the webcams may still be dark when you wake, so the night-before look matters more. If the morning check worries you, message us on WhatsApp before you head down.
If the Shore in Front of Your Hotel Is Not Right
Sargassum is patchy: on the November 11 map, Playa Coral, south of Punta Nizuc, was orange while the whole Hotel Zone was green. Our guide to sargassum backup photo spots at your resort shows alternatives away from the waterline, and our note on Costa Mujeres and sargassum explains why that shore often fares differently.
The money side is simple: no deposit, you pay at the end of the session by card or in cash, and cancellation is free up to one day before, so if the sources look bad two days out, changing the date costs nothing. Our booking page shows the online times, 6:30, 7:00 and 7:30 am and 5:00 and 5:30 pm, Cancun time; other times go through WhatsApp.
We are a Cancun studio led by Vianey Díaz. Our team has more than 20 years of photography experience and has photographed thousands of families and couples, and IVAE Studios has delivered more than 500 sessions since 2023, with 5.0 across 75 Google reviews. A few of those families met the weather too:
“patient with our family, especially with two little kids during a windy beach session”
Ashley H., Google review
“Despite the rain on the day of our shoot, they still managed to capture beautiful photos”
Linh K., Google review
Everything else about how we photograph families on these beaches is on our Cancun family photographer page.
Frequently Asked Questions
Very little when we checked on November 13, 2026: Mexico's Navy rated sargassum escaso (scarce), and the state's November 11 map showed the whole Hotel Zone at its low level. Conditions change with the wind, so check the latest map and the Navy's daily bulletin for your own day.
Quintana Roo's environment ministry, SEMA, posts a traffic-light map on its official Facebook page, rating each beach from blue (none) to red (excessive). Mexico's Navy publishes a daily bulletin with satellite-tracked groups and a possible-arrival forecast, and the University of South Florida's Sargassum Watch System shows the wider Caribbean.
Yes. Webcams de Mexico streams Punta Cancun, a view south from Live Aqua Cancun, Playa Langosta and Playa Norte on Isla Mujeres. All four were live when we checked on November 13, 2026.
According to Cancun's municipal Civil Protection office, green means safe to swim, yellow means caution and red means entering the sea is prohibited. Lifeguards watch public beaches from 9:00 am to 5:00 pm and leave the red flag up at closing, so an early-morning red flag may be last night's.
Seaweed is patchy, and our backup-spots guide shows alternatives away from the waterline. Our sessions need no deposit and cancellation is free up to one day before, so if the sources look bad two days out, changing the date costs nothing.