nomadseason

September Weather in San Mateo Coatepec, Mexico

Last updated: August 27, 2025

In San Mateo Coatepec, Mexico, the average temperature in September reaches a pleasant 21°C (69°F). However, you might experience a low of 13°C (56°F) and a high of 29°C (85°F). Expect to see 411 mm (16.2 in) of rainfall spread over 28 days, with humidity averaging a comfortable 82%.

September Temperature in San Mateo Coatepec

In September in San Mateo Coatepec, the average temperature is 21°C (69°F). The maximum can reach 29°C (85°F) and the minimum can be as low as 13°C (56°F). This weather makes it a great time for travelers to explore the outdoors and enjoy various activities comfortably.

September Weather in San Mateo Coatepec: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in San Mateo Coatepec, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Mateo Coatepec, September typically has an average temperature of 21°C (69°F), with highs reaching up to 29°C (85°F) and lows dropping to around 13°C (56°F).
JanFebMarAprMayJunJulAugSepOctNovDec656872757571707069696765
Data source: Temperature data for San Mateo Coatepec 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 San Mateo Coatepec

In San Mateo Coatepec in September, the total precipitation amount is 411 mm (16.2 in) that falls over the course of 28 days.

September Precipitation Trends in San Mateo Coatepec

The chart displays monthly precipitation patterns in San Mateo Coatepec, 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 San Mateo Coatepec, September typically receives around 411 mm (16.2 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec461329130376276375411173353
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in San Mateo Coatepec

In San Mateo Coatepec in September humidity is 82%. With an average temperature of 21°C (69°F), this humidity feels like a sweltering embrace, making outdoor activities feel more strenuous and prompting travelers to seek shade and cooling breezes.

September Average Humidity in San Mateo Coatepec

This chart illustrates the average monthly humidity levels in San Mateo Coatepec, 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 San Mateo Coatepec is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%78%75%71%77%76%68%70%82%91%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Mateo Coatepec

In San Mateo Coatepec 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 San Mateo Coatepec, you can check here.

Maximum UV Index Levels in San Mateo Coatepec for September

The chart shows the monthly maximum UV Index (UVI) for San Mateo Coatepec 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 San Mateo Coatepec typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1012141414141414141198
Data source: San Mateo Coatepec 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 San Mateo Coatepec Compares to Other Months

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

This table compares monthly weather conditions in San Mateo Coatepec, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (65°F)4 mm (0.2 inches)84%very high
February Weather20°C (69°F)6 mm (0.2 inches)78%extreme
March Weather22°C (73°F)13 mm (0.5 inches)75%extreme
April Weather24°C (75°F)29 mm (1.2 inches)70%extreme
May Weather24°C (75°F)130 mm (5.1 inches)77%extreme
June Weather22°C (71°F)376 mm (14.8 inches)76%extreme
July Weather21°C (71°F)276 mm (10.9 inches)68%extreme
August Weather21°C (70°F)375 mm (14.8 inches)70%extreme
September Weather21°C (69°F)411 mm (16.2 inches)82%extreme
October Weather20°C (69°F)173 mm (6.8 inches)91%extreme
November Weather19°C (67°F)35 mm (1.4 inches)89%very high
December Weather18°C (65°F)3 mm (0.1 inches)88%very high

Compare San Mateo Coatepec's Climate with Cities Worldwide