San Blas Weather in September

During September, San Blas experiences very high daytime temperatures of 31°C (88°F) and cooler nights around 26°C (79°F). September sits within the rainy season, so expect regular and often heavy rainfall.

Rainfall in San Blas in September

As part of the rainy season, San Blas sees around 19 days of rain in September, with an average of 356 mm (14 in). With high rainfall totals spread across the month, individual showers can be very heavy. Waterproof gear is strongly recommended.

Temperature in San Blas in September

Daytime temperatures in San Blas reach 31°C (88°F) in September, dropping to 26°C (79°F) at night. For most visitors, the main thing to prepare for is the heat during the day. With lows around 26°C (79°F), the nights are warm enough that a sheet is usually all you need for bedding.

September in San Blas has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.

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For a detailed overview over the year and the best time to visit Mexico, check out our San Blas's climate page.

San Blas Temperature in September

Min Temperature 26°C (79°F)  

Max Temperature 31°C (88°F)  

Chance of Rain 63%  

Precipitation 356 mm (14 in)  

Rainy days 19 days  

What to Wear in San Blas in September

Warm but pleasant conditions in San Blas in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions.

What To Do in San Blas in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

7/10

Walking

7/10

Camping

7/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Mexico, check out our San Blas's climate page.

More climate data for San Blas

Temperature Rainfall

See the full San Blas climate overview or explore weather in Mexico.