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September Weather in Primero de Mayo, Mexico

Last updated: August 27, 2025

In Primero de Mayo, Mexico, the average temperature in September reaches a warm 28°C (84°F), with minimums dipping to 19°C (67°F) and soaring highs of up to 40°C (104°F). Expect 70 mm (2.8 in) of precipitation spread over 15 days, contributing to an average humidity of 80%. Perfect for those who enjoy a tropical climate!

September Temperature in Primero de Mayo

In September, in Primero de Mayo, the average temperature is 28°C (84°F). The maximum can reach 40°C (104°F), and the minimum can be as low as 19°C (67°F). Be prepared for warm weather when traveling to Primero de Mayo this month.

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 (84°F), with highs reaching up to 40°C (104°F) and lows dropping to around 19°C (67°F).
JanFebMarAprMayJunJulAugSepOctNovDec667075818485848583797268
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 reaches 70 mm (2.8 in) over the course of 15 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 70 mm (2.8 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec191229236191925870611312
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 80%. With an average temperature of 28°C (84°F), this humidity feels like a warm blanket wrapping around you, making traveling a bit heavy and sticky, yet stimulating as the tropical air invites you to explore the vibrant surroundings.

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 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%83%84%85%79%71%72%80%85%88%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 is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, 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 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec79121313131313121187
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 Weather19°C (66°F)19 mm (0.8 inches)87%high
February Weather21°C (70°F)12 mm (0.5 inches)85%very high
March Weather24°C (75°F)29 mm (1.2 inches)83%extreme
April Weather27°C (81°F)23 mm (0.9 inches)84%extreme
May Weather29°C (85°F)61 mm (2.4 inches)85%extreme
June Weather29°C (85°F)91 mm (3.6 inches)79%extreme
July Weather29°C (85°F)92 mm (3.6 inches)71%extreme
August Weather30°C (85°F)58 mm (2.3 inches)72%extreme
September Weather28°C (84°F)70 mm (2.8 inches)80%extreme
October Weather26°C (79°F)61 mm (2.4 inches)85%extreme
November Weather22°C (72°F)13 mm (0.5 inches)88%very high
December Weather20°C (68°F)12 mm (0.5 inches)89%high

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