Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
During September, Mexico City records an average high-temperature of a still pleasant 20.8°C (69.4°F), marking a slight divergence from August's 22°C (71.6°F). September brings Mexico City a consistent average low-temperature of 11°C (51.8°F).Humidity
The most humid month in Mexico City is September, with an average relative humidity of 77%.Rainfall
In Mexico City, Mexico, during September, the rain falls for 25.7 days and regularly aggregates up to 116mm (4.57") of precipitation. In Mexico City, Mexico, during the entire year, the rain falls for 176.8 days and collects up to 781mm (30.75") of precipitation.Daylight
The average length of the day in September is 12h and 14min.On the first day of September in Mexico City, Mexico, sunrise is at 6:21 am and sunset at 6:51 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 6:25 pm CST.
Sunshine
The average sunshine in September in Mexico City, Mexico, is 9.1h.UV index
The months with the lowest UV index in Mexico City, Mexico, are January, June, August through December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the UV index of 4 transforms into the following advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Mexico City in September?
What is the most humid month in Mexico City?
What is the average humidity in September in Mexico City?
How many days does it rain in September in Mexico City?
What is the average length of the day in September in Mexico City?
What time are sunrise and sunset in September in Mexico City?
How many hours of sunshine does Mexico City have in September?
What is the month with the lowest UV index in Mexico City?
What is the UV index reading in September in Mexico City?
Average temperature in September
Mexico City, Mexico
- Average high temperature in September: 20.8°C
The warmest months (with the highest average high temperature) are April and May (25.4°C).
The month with the lowest average high temperature is January (19.2°C).
- Average low temperature in September: 11°C
The month with the highest average low temperature is May (13.7°C).
The coldest month (with the lowest average low temperature) is January (6.8°C).
Average pressure in September
Mexico City, Mexico
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is January (1018.3mbar).
The month with the lowest atmospheric pressure is May (1014.1mbar).
Average wind speed in September
Mexico City, Mexico
- Average wind speed in September: 6.2km/h
The windiest month (with the highest average wind speed) is March (7.4km/h).
The calmest month (with the lowest average wind speed) is July (5.4km/h).
Average humidity in September
Mexico City, Mexico
- Average humidity in September: 77%
The month with the highest relative humidity is September (77%).
The month with the lowest relative humidity is April (41%).
Average rainfall in September
Mexico City, Mexico
- Average rainfall in September: 116mm
The wettest month (with the highest rainfall) is July (181mm).
The driest month (with the least rainfall) is December (4mm).
Average rainfall days in September
Mexico City, Mexico
- Average rainfall days in September: 25.7 days
The month with the highest number of rainy days is July (28.8 days).
The month with the least rainy days is December (3.9 days).
Average daylight in September /
Average sunshine in September
Mexico City, Mexico
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is November (Average sunshine: 7h and 48min).
Average sunshine days in September
Mexico City, Mexico
- Average sunshine days in September: 2.5 days
The month with the most sunshine days is December (25.1 days).
The month with the least sunshine days is July (0.3 days).
Average UV index in September
Mexico City, Mexico
- Average UV index in September: 4
The months with the highest UV index are February, March, April, May and July (UV index 5).
The months with the lowest UV index are January, June, August, September, October, November and December (UV index 4).
Average cloud cover in September
Mexico City, Mexico
- Average cloud cover in September: 37
The month with the most cloud cover is July (Cloud cover 38).
The month with the least cloud cover is December (Cloud cover 10).
Average visibility in September
Mexico City, Mexico
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, November and December (10km).
The months with the lowest visibility are July, August and September (8km).
Mexico City, Mexico
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