Daytime highs, nighttime lows and the warmest cities across Mexico this September.
Mexico, experiences maximum daytime temperatures in September ranging from 20°C (68°F) in Metepec to 39°C (102°F) in Mexicali. Nighttime temperatures generally drop to 23°C (73°F) in Mexicali and 10°C (50°F) in Metepec.
Explore the map below to discover average September temperatures at the top destinations in Mexico. For a deeper dive, simply click on any destination dot.
Check the conditions for any month of the year.
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Mexico.
Marker color shows the average daytime high temperature in September: blue is cold, red is hot.
Playa del Carmen averages a daytime high of 31°C (88°F) in September, which is very high for Mexico.
Playa del Carmen sees nighttime lows close to 26°C (79°F) in September.
Based on our systematic data collection, Mexicali has been identified as the city with the highest average temperatures. The daytime temperature usually hovers around 39°C (102°F), while at night it goes down to an approximate temperature of 23°C (73°F).
In our database, Metepec is the chilliest city in September in Mexico. Daytime temperatures typically peak at 20°C (68°F), while the nighttime lows hover around 10°C (50°F).
Across Mexico, sunshine in September ranges from moderately sunny in San Cristóbal de Las Casas (118 hours) to sunny in Tijuana (272 hours).
Across Mexico, sea temperatures in September range from perfect at 28°C (82°F) in Puerto Peñasco to warm at 30°C (86°F) in Puerto Vallarta — so swimming conditions depend on which coast you pick.
We have much more information about the climate in Mexico.
Weather and climate has detailed information for every country in the world. Are you going to Mexico? Get detailed 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 travel conditions. Find out where to go with our weather planner.
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