Temperatures in September
It's warm in September in Mexico City with an average temperature of 25°C. Temperatures this month range from a low of 23°C to a high of 27°C. At night, you can expect temperatures between 11°C and 13°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Mexico City in September. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of September
The month of September starts in Mexico City with warm temperatures, averaging around 25°C during the day and nights close to 12°C. Plenty of days with a chance of precipitation.
Mid-September
By mid-September, the average daytime temperature rises to around 26°C, with nights close to 12°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days.
End of September
By the end of September, the average daytime temperature in Mexico City will be around 25°C, with nights close to 12°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days.
Discover cheap trips to Mexico City 
Precipitation in September
In September, there is an average of 154 mm of precipitation, spread over 18 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
The average precipitation chance this month is 60% per day. Though that seems frequent, the weather’s variable. There are also a few days with lower precipitation chances.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Mexico City. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Mexico City in September |
London | ||
|---|---|---|---|
 Average Temperature |
25°C | 20°C | |
 High Temp |
27°C | 22°C | |
| Low Temp |
23°C | 17°C | |
 Total Precipitation |
154 mm | 44 mm | |
| Rainy Days |
18 days | 8 days | |
August
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is September a good time to visit Mexico City?
After some sun? Then September isn’t the best time to be in Mexico City. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Mexico City in September
With 29°C, Mexico City hit the highest temperature in the last 10 years in September 2023. The lowest daytime temperature in this month was 18°C in 2020. The extreme night temperatures ranged from a low of 6°C to a high of 15°C.
Check out the climate of Mexico City for all months and discover the best travel time
Curious about the climate in other parts of Mexico? Check out the weather and climate in places like Cancún, Playa del Carmen, Tulum, or have a look at other destinations in Mexico.
Plan your next holiday
Don’t miss the best holiday deals for Mexico City and see what our partners have for you.
Daily Temperature in September in Mexico City
This chart shows the average daily temperatures, both day and night, for each day in September in Mexico City, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in Mexico City
The chart below shows the average daily precipitation in September for Mexico City, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 18 days of rain in Mexico City.
Daily UV Index in September in Mexico City
This chart shows the average daily UV index in September in Mexico City, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Mexico City Over the Years
This chart shows the average temperature in September in Mexico City, measured in degrees Celsius, over the past years.
Total Precipitation in September in Mexico City Over the Years
This chart shows the average precipitation in September in Mexico City, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for Mexico City
Click on a specific day in September for detailed info on the typical weather on that day in Mexico City. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Mexico City
The weather in September in Mexico City is rated 0 out of 5 stars by 1 visitor. Have you been to Mexico City? Share your weather experience to help other visitors.
Have you been to Mexico City in September?
Share your weather experience in September in Mexico City.
Average Weather in Mexico City by Month
Click on a month below to see detailed weather info for Mexico City. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Mexico City for all months at once
