Tulum is warm all year round. When choosing when to visit, therefore, the main considerations are not the temperature, but rainfall, humidity and, in particular, the presence of Sargassum seaweed.

The best time to visit isfrom December to March. There is the least rainfall, temperatures are pleasant and the likelihood of seaweed on the beaches is at its lowest. February and March usually offer the very best combination of stable weather and clean beaches.

From May to October, it is significantly hotter, it rains more frequently, and most beaches in Tulum may be affected by sargassum. The advantages are lower accommodation prices and fewer visitors at some attractions.

Choose a beach hotel in Tulum

When is the best time to visit Tulum?

Choose your dates based on what you’re looking for from your holiday:

• Best weather and beaches: February and March
• Pleasant temperatures: December to February
• Lowest chance of rain: February to April
• Warmest sea: August to October
• Highest risk of sargassum: May to August
• Highest risk of tropical storms: August to October
• Best value for money: the second half of November and early December

If beaches are your main holiday priority, I’d go for February or March. If you’re primarily keen to explore Yucatán, with visiting cenotes and beaches just part of the itinerary, you can visit practically any time of year.

The weather in Tulum throughout the year

What is the climate like in Tulum at different times of the year?

December to February: the best time of year for most travellers

From December to February, Tulum enjoys its most pleasant weather. Daytime temperatures are around 28 °C, humidity is lower and rain is less frequent.

The sea is around 26 to 27 °C, so you can swim without any problems. However, on windy days, the water may feel cooler after you get out than it does in summer.

Occasionally, a colder northern front arrives, bringing wind, overcast skies and cooler evenings for a day or two. A light jumper may therefore come in handy for an evening out.

The downside is that hotel prices are at their highest, particularly during Christmas, New Year’s Eve and the winter holidays.

At this time of year, you should definitely book your hotel as far in advance as possible.

Sort hotels in Tulum by price

March and April: sunny, but gradually getting hotter

In my opinion, March is one of the best months to visit Tulum.

There’s very little rain, sargassum usually hasn’t appeared in large quantities yet, and it’s not as muggy during the day as it is in summer.

In April, temperatures rise above 30 °C and trips to the ruins or inland can become tiring at midday. Swimming, on the other hand, is very pleasant and the sea warms up to around 27 °C.

Prices can rise significantly around Easter. In some years, sargassum begins to appear along the coast as early as April, though it is still not as frequent a problem as in summer.

• 👉 Check hotel prices in Tulum at the end of the season
• 👉 Compare car hire prices at Tulum Airport

May to August: heat, humidity and sargassum

From May onwards, both the temperature and humidity rise significantly. Daytime temperatures are usually around 32 °C, and it doesn’t cool down much in the evening either.

Showers are more frequent, but they usually don’t last all day. A typical pattern is a short, intense downpour followed by a return to clear skies. The exception is tropical low-pressure systems, which can bring overcast skies and rain for several days.

It is during this period that sargassum tends to be the biggest problem. Beaches may look fine one day and be covered in a thick layer of seaweed the next.

💡 Our experience: We visited Tulum in May. It’s true that, because of the seaweed, it was virtually impossible to swim in the sea. But even so, we thoroughly enjoyed our stay. You can swim in the cenotes without any restrictions; there were few people around and the weather was actually quite pleasant.

What’s more, hotel prices – and especially car hire rates – were slightly lower than at the turn of the year.

I’d particularly recommend May to August for travelling around the whole of Yucatán.

• 👉 Compare flight prices to Tulum

September to November: the least stable weather

September is usually the rainiest month in Tulum. Humidity, sea temperatures and the risk of tropical storms also remain high.

Similar conditions continue throughout October. Rain needn’t spoil your entire stay, but the likelihood of several overcast days in a row is significantly higher than in winter.

In November, the situation gradually improves. Both rainfall and sargassum decrease, and by the second half of the month, conditions can be very good.

I consider the end of November to be an interesting compromise between the weather, hotel prices and the number of tourists.

The rainy season in Tulum

The rainier period lasts from around the end of May to the start of November. The heaviest rainfall usually occurs in June, September and October.

A rain icon in the forecast does not mean it will rain all day. Tropical showers often arrive in the afternoon or evening; they are very intense, but the sun may be shining again within an hour.

During the rainy season, plan visits to archaeological sites and other outdoor activities for the morning if possible. Save the cenotes or caves for the afternoon.

If you’re travelling in summer or autumn, choose tours that offer free cancellation.

When does seaweed appear in Tulum?

Sargassum most commonly appears from April or May through to October. The largest amounts of seaweed usually wash ashore from May to August.

However, it is impossible to predict the exact start or end of the season. In some years, the seaweed appears as early as winter; in others, individual beaches remain relatively clear even in summer.

Tulum is prone to sargassum due to its open, east-facing coastline. Consequently , you won’t find a beach in the immediate vicinity that is reliably protected against the seaweed.

Better hotels clear the seaweed from the sand every morning, and some also use barriers in the sea. However, clean sand does not mean that the water and the shoreline will also be clean.

If you’re travelling between May and October, choose a hotel with a good-quality swimming pool and regular beach cleaning. Make sure to check the most recent guest reviews, as experiences from several months ago may not reflect the current situation.

If clean beaches are an absolute priority for you, the north- or west-facing beaches on Isla Mujeres tend to be a safer choice in summer.

In Tulum itself, have an alternative plan ready in case of seaweed, such as Gran Cenote, Dos Ojos, Aktun Chen or Muyil.

Hurricane season

The official Atlantic hurricane season runs from 1 June to 30 November. Historically, the highest level of activity is concentrated between mid-August and mid-October, with the statistical peak occurring in early September.

This does not mean that Tulum is at risk of a hurricane throughout the entire period.

The likelihood of a direct hit during a specific week’s holiday remains low. However, a tropical storm does not need to make a direct landfall in Tulum to bring several days of rain, wind and cancelled boat trips.

If travelling in September or October, I would always book accommodation with free cancellation and keep an eye on the official forecasts before departure.

Sea temperature and swimming

The Caribbean Sea off Tulum is warm enough for swimming all year round.

It is usually at its coolest in February, when it is around 26 °C. It warms up from May onwards and reaches approximately 29 °C during August, September and October.

Much more important than the water temperature are the waves, wind and sargassum. If the red flag is flying, do not enter the sea, even if it does not look dangerous at first glance.

The water in the cenotes is noticeably cooler than the sea all year round. In the hot summer months, swimming is very refreshing, whilst on a winter’s morning, the first dip in the water can be uncomfortably cold.