nomadseason

September Weather in Coacalco, Mexico

Last updated: August 27, 2025

In Coacalco, Mexico, the average temperature in September is a pleasant 24°C (75°F). During this time, you can expect temperatures to range from a minimum of 17°C (63°F) to a maximum of 33°C (91°F). Keep in mind that precipitation averages around 265 mm (10.4 in) over 25 days, contributing to an average humidity level of 82%.

September Temperature in Coacalco

In September in Coacalco, the average temperature is 24°C (75°F). The maximum can reach 33°C (91°F) and the minimum can be as low as 17°C (63°F). This makes Coacalco an ideal destination for travelers seeking pleasant weather and outdoor activities during this time.

September Weather in Coacalco: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Coacalco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Coacalco, September typically has an average temperature of 24°C (75°F), with highs reaching up to 33°C (91°F) and lows dropping to around 17°C (63°F).
JanFebMarAprMayJunJulAugSepOctNovDec727578818177767675757372
Data source: Temperature data for Coacalco generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Coacalco

In Coacalco in September, the total precipitation amount is 265 mm (10.4 in) spread over 25 days.

September Precipitation Trends in Coacalco

The chart displays monthly precipitation patterns in Coacalco, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Coacalco, September typically receives around 265 mm (10.4 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec233851193163210265106123
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Coacalco

In Coacalco in September, humidity is 82%. With an average temperature of 24°C (75°F), this humidity feels like a warm embrace, making travel feel sticky and heavy on the skin, often requiring more frequent breaks and hydration.

September Average Humidity in Coacalco

This chart illustrates the average monthly humidity levels in Coacalco, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Coacalco is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec65%61%59%62%73%78%79%82%82%79%72%70%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Coacalco

In Coacalco in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Coacalco, you can check here.

Maximum UV Index Levels in Coacalco for September

The chart shows the monthly maximum UV Index (UVI) for Coacalco in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Coacalco typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121414141414131412108
Data source: Coacalco September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Coacalco Compares to Other Months

Weather in Coacalco varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Coacalco, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Coacalco, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (72°F)2 mm (0.1 inches)65%very high
February Weather24°C (75°F)3 mm (0.1 inches)61%extreme
March Weather26°C (79°F)3 mm (0.1 inches)59%extreme
April Weather27°C (81°F)8 mm (0.3 inches)62%extreme
May Weather27°C (82°F)51 mm (2.0 inches)73%extreme
June Weather25°C (77°F)193 mm (7.6 inches)78%extreme
July Weather25°C (76°F)163 mm (6.4 inches)79%extreme
August Weather24°C (76°F)210 mm (8.3 inches)82%extreme
September Weather24°C (75°F)265 mm (10.4 inches)82%extreme
October Weather24°C (75°F)106 mm (4.2 inches)79%extreme
November Weather23°C (74°F)12 mm (0.5 inches)72%very high
December Weather22°C (72°F)3 mm (0.1 inches)70%very high

Compare Coacalco's Climate with Cities Worldwide