September weather forecast and climate
Mexico City, Mexico

A tower holding the golden sculpture of the historical Angel of Independence in a roundabout in Mexico City, Mexico, with the city buildings in view
A tower holding the golden sculpture of the historical Angel of Independence in a roundabout in Mexico City, Mexico, with the city buildings in view

What is the temperature in September in Mexico City?

The average high-temperature, in September, in Mexico City, Mexico, is 23.3°C (73.9°F), while the average low-temperature is 12.7°C (54.9°F).

How much does it rain in Mexico City in September?

In Mexico City, Mexico, during September, the rain falls for 18.2 days and regularly aggregates up to 139.8mm (5.5") of precipitation.
Average temperature in September - Mexico City, Mexico
  • Average high temperature in September: 23.3°C

Warmest months (with the highest average high temperature) are April and May (26.8°C).
The month with the lowest average high temperature is January (21.7°C).

  • Average low temperature in September: 12.7°C

The month with the highest average low temperature is June (13.5°C).
The coldest month (with the lowest average low temperature) is January (7.4°C).

Average humidity in September - Mexico City, Mexico
  • Average humidity in September: 70%

The month with the highest relative humidity is September (70%).
The month with the lowest relative humidity is March (41%).

Average rainfall in September - Mexico City, Mexico
  • Average rainfall in September: 139.8mm

The wettest month (with the highest rainfall) is July (189.5mm).
The driest month (with the lowest rainfall) is February (7mm).

Average rainfall days in September - Mexico City, Mexico
  • Average rainfall days in September: 18.2 days

The month with the highest number of rainy days is July (23.2 days).
The month with the lowest number of rainy days is December (2 days).

Average daylight in September / Average sunshine in September - Mexico City, Mexico
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 13.3h).
The month with shortest days is December (Average daylight: 11h).

  • Average sunshine in September: 5.2h

The month with most sunshine is March (Average sunshine: 8.6h).
The month with least sunshine is September (Average sunshine: 5.2h).

Average UV index in September - Mexico City, Mexico
  • Average UV index in September: 12

Months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 8).

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