San Blas Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit San Blas.
Climate overview of San Blas
The climate in San Blas, Riviera Nayarit, Mexico, is remarkably consistent, with temperatures year-round averaging 30°C (86°F). The warmest month is July at 32°C (90°F), and the coolest is January at 27°C (81°F).
Rainfall is high, totalling around 1330 mm (52 in) per year. August is the wettest month and April the driest. The city also experiences distinct dry (November to May) and wet (July to September) seasons.
San Blas Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in San Blas - and find the best time to visit.
Monthly Temperature in San Blas
In San Blas temperatures are generally consistent throughout the year. Average maximum daytime temperatures range from a very warm 32°C (90°F) in July, the warmest time of the year, to a comfortable 27°C (81°F) during cooler months like January.
At night, you can expect temperatures ranging from 26°C (79°F) in July to around 19°C (66°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in San Blas
San Blas experiences significant rainfall throughout the year, averaging 1330 mm (52 in) of precipitation annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, August it receives heavy rainfall, averaging 365 mm (14 in) of precipitation, recorded across 20 rainy days. In contrast, the driest month April brings less rainfall, with 1.1 mm (0.04 in) over a single rainy day. For more details, please visit our San Blas Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit San Blas
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: January, February, March, April and December
- Warmest weather: May, June, July, August, September and October
- Wettest months: July, August and September, when rainfall is highest.
- Seasonal pattern: Distinct dry (November to May) and wet (July to September) seasons
Frequently asked questions about the climate in San Blas
What is the best time to visit San Blas?
January, February, March, April and December typically offer the most optimal weather in San Blas. In contrast, July, August and September tend to have less optimal conditions. San Blas has distinct dry (November to May) and wet (July to September) seasons.
What temperatures can I expect in San Blas?
Daytime highs range from 27°C (81°F) in January to 32°C (90°F) in July. Nighttime lows range from 19°C (66°F) to 26°C (79°F). Temperatures stay relatively stable year-round.
How much rain does San Blas get?
Annual rainfall is around 1330 mm (52 in). August is the wettest month with 365 mm (14 in), while April is the driest with 1.1 mm (0.04 in).
San Blas 3-Day Forecast
San Blas on the map
San Blas is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Los Cabos
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31°C (88°F) Cancún31°C (88°F) Playa del Carmen31°C (88°F) Puerto Vallarta
30°C (86°F) San Miguel de Allende
28°C (82°F) Mexico City23°C (73°F) 
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