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September Weather in Primero de Mayo, Mexico

Last updated: August 27, 2025

In September, the average temperature in Primero de Mayo, Mexico hovers around 28°C (83°F). Expect a range with minimums dipping to 15°C (60°F) and maximums soaring up to 42°C (108°F). During this period, precipitation averages 97 mm (3.8 in), spread over about 10 days, contributing to an average humidity level of 77%.

September Temperature in Primero de Mayo

In September in Primero de Mayo, the average temperature is 28°C (83°F). Maximums can reach 42°C (108°F), while minimums can be as low as 15°C (60°F). Be prepared for warm days and cooler evenings when traveling to Primero de Mayo during this time.

September Weather in Primero de Mayo: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Primero de Mayo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Primero de Mayo, September typically has an average temperature of 28°C (83°F), with highs reaching up to 42°C (108°F) and lows dropping to around 15°C (60°F).
JanFebMarAprMayJunJulAugSepOctNovDec576271788488888982756560
Data source: Temperature data for Primero de Mayo generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Primero de Mayo

In Primero de Mayo in September, the total precipitation amount is 97 mm (3.8 in) over a span of 10 days.

September Precipitation Trends in Primero de Mayo

The chart displays monthly precipitation patterns in Primero de Mayo, 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 Primero de Mayo, September typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec8812154028472998411516
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Primero de Mayo

In Primero de Mayo in September, humidity is 77%. With an average temperature of 28°C (83°F), this humidity feels like walking through a warm, damp blanket, making outdoor activities more challenging and requiring frequent hydration breaks for travelers.

September Average Humidity in Primero de Mayo

This chart illustrates the average monthly humidity levels in Primero de Mayo, 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 Primero de Mayo is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%74%75%74%79%77%64%61%77%83%85%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Primero de Mayo

In Primero de Mayo in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Primero de Mayo.

Maximum UV Index Levels in Primero de Mayo for September

The chart shows the monthly maximum UV Index (UVI) for Primero de Mayo 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 Primero de Mayo typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec6910121212121211975
Data source: Primero de Mayo 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 Primero de Mayo Compares to Other Months

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

This table compares monthly weather conditions in Primero de Mayo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather14°C (58°F)8 mm (0.3 inches)83%high
February Weather17°C (63°F)8 mm (0.3 inches)74%very high
March Weather22°C (71°F)12 mm (0.5 inches)75%very high
April Weather25°C (78°F)15 mm (0.6 inches)74%extreme
May Weather29°C (84°F)40 mm (1.6 inches)79%extreme
June Weather31°C (88°F)28 mm (1.1 inches)77%extreme
July Weather31°C (89°F)47 mm (1.8 inches)64%extreme
August Weather32°C (89°F)29 mm (1.1 inches)61%extreme
September Weather28°C (83°F)97 mm (3.8 inches)77%extreme
October Weather24°C (75°F)41 mm (1.6 inches)83%very high
November Weather19°C (66°F)15 mm (0.6 inches)85%high
December Weather16°C (60°F)16 mm (0.6 inches)89%moderate

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