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September Weather in Villa Union, Mexico

Last updated: August 27, 2025

In September, the average temperature in Villa Union, Mexico hovers around 18°C (65°F), with minimums dipping to 7°C (45°F) and occasional maximums reaching 28°C (83°F). Expect considerable precipitation, averaging 141 mm (5.5 in) over 19 days, and a high humidity level of 86%. When planning your visit, be ready for both the warmth and the wet!

September Temperature in Villa Union

In September in Villa Union, the average temperature is 18°C (65°F). The maximum can reach 28°C (83°F), while the minimum can drop as low as 7°C (45°F). This mild climate makes Villa Union an ideal destination for outdoor exploration and city sightseeing during this time of year.

September Weather in Villa Union: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Villa Union, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Villa Union, September typically has an average temperature of 18°C (65°F), with highs reaching up to 28°C (83°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec535863677273686965645954
Data source: Temperature data for Villa Union 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 Villa Union

In Villa Union in September, the precipitation amount is 141 mm (5.5 in) spread over 19 days.

September Precipitation Trends in Villa Union

The chart displays monthly precipitation patterns in Villa Union, 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 Villa Union, September typically receives around 141 mm (5.5 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec12107412561699614145129
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Villa Union

In Villa Union in September humidity is 86%. With an average temperature of 18°C (65°F), this humidity feels like you’re wrapped in a warm, heavy blanket, making outdoor activities feel quite muggy and sticky for traveling.

September Average Humidity in Villa Union

This chart illustrates the average monthly humidity levels in Villa Union, 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 Villa Union is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%64%49%47%55%77%82%83%86%83%80%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Villa Union

In Villa Union in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Villa Union.

Maximum UV Index Levels in Villa Union for September

The chart shows the monthly maximum UV Index (UVI) for Villa Union 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 Villa Union typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec811131514141414131297
Data source: Villa Union 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 Villa Union Compares to Other Months

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

This table compares monthly weather conditions in Villa Union, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)11 mm (0.5 inches)71%very high
February Weather14°C (58°F)10 mm (0.4 inches)64%extreme
March Weather17°C (64°F)6 mm (0.3 inches)49%extreme
April Weather20°C (68°F)4 mm (0.1 inches)47%extreme
May Weather22°C (72°F)12 mm (0.5 inches)55%extreme
June Weather23°C (73°F)56 mm (2.2 inches)77%extreme
July Weather20°C (68°F)169 mm (6.7 inches)82%extreme
August Weather20°C (69°F)96 mm (3.8 inches)83%extreme
September Weather18°C (65°F)141 mm (5.5 inches)86%extreme
October Weather18°C (64°F)45 mm (1.8 inches)83%extreme
November Weather15°C (59°F)12 mm (0.5 inches)80%very high
December Weather12°C (54°F)9 mm (0.3 inches)83%high

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