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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 is a warm 28°C (82°F), with a minimum of 24°C (76°F) and a maximum reaching 32°C (90°F). Expect precipitation of around 182 mm (7.2 in) over approximately 20 days, contributing to an average humidity level of 80%.

September Temperature in Primero de Mayo

In September in Primero de Mayo, the average temperature is 28°C (82°F). Maximums can reach 32°C (90°F), while minimums can drop to as low as 24°C (76°F). This pleasant climate makes it an ideal destination for travelers seeking warmth and sunshine.

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 (82°F), with highs reaching up to 32°C (90°F) and lows dropping to around 24°C (76°F).
JanFebMarAprMayJunJulAugSepOctNovDec697073778182838382807471
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 182 mm (7.2 in) over a span of 20 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 182 mm (7.2 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec6932463162137111881821484929
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 (82°F), this humidity feels like a warm, thick blanket enveloping you, making outdoor activities sweaty and demanding frequent breaks in the shade while traveling.

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.
JanFebMarAprMayJunJulAugSepOctNovDec710111212121312121186
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 Weather20°C (69°F)69 mm (2.7 inches)87%high
February Weather21°C (70°F)32 mm (1.2 inches)85%very high
March Weather23°C (73°F)46 mm (1.8 inches)83%extreme
April Weather25°C (77°F)31 mm (1.2 inches)84%extreme
May Weather27°C (81°F)62 mm (2.4 inches)85%extreme
June Weather28°C (83°F)137 mm (5.4 inches)79%extreme
July Weather28°C (83°F)111 mm (4.4 inches)71%extreme
August Weather29°C (84°F)88 mm (3.4 inches)72%extreme
September Weather28°C (82°F)182 mm (7.2 inches)80%extreme
October Weather26°C (80°F)148 mm (5.8 inches)85%extreme
November Weather24°C (75°F)49 mm (1.9 inches)88%very high
December Weather22°C (71°F)29 mm (1.2 inches)89%high

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