San Cristóbal de Las Casas weather in September (Chiapas, Mexico)

Curious about the September weather in San Cristóbal de Las Casas? Check out this comprehensive weather guide.

In September, San Cristóbal de Las Casas typically experiences high temperatures and heavy rainfall. Throughout the daytime, temperatures often hover around 25°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 15°C.

San Cristóbal de Las Casas in September falls under the rainy season with heavy rainfall, averaging around 417 mm for the month. Typically around 20 days of rainfall is expected.

The city usually sees around 118 hours of sunlight, indicating a moderately sunny period.

If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit San Cristóbal de Las Casas. January, February, March, April, November and December typically offer the most optimal weather. In contrast, June, July, August and September tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized San Cristóbal de Las Casas climate page with graphs.

 

San Cristóbal de Las Casas, monthly averages in September

Min Temperature 15°C  

Max Temperature 25°C  

Chance of Rain 68%  

Precipitation 417 mm  

Rainy days 20 days  

Humidity 80%  

Sunshine 118 hours  

Percentage Sunshine  

Where to go in Mexico in September

Find out more about the weather in Mexico in September and which places have the best weather conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in San Cristóbal de Las Casas in September?

For visitors traveling to San Cristóbal de Las Casas, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

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

Swimming

7/10

Camping

6/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in San Cristóbal de Las Casas.

Our site offers climate and forecast data for every country in the world. Are you going to Mexico? On this website you can find historical weather averages for many cities in Mexico. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.