September Weather in Paso San Juan, Mexico

Last updated: August 26, 2025

In Paso San Juan, Mexico, the average temperature in September hovers around 28°C (83°F). Expect minimums of 23°C (73°F) and maximums reaching 37°C (99°F), creating a warm climate. However, be prepared for heavy rainfall, as the region receives an average of 232 mm (9.1 in) over 23 days. With an average humidity of 86%, it’s advisable to stay hydrated and ready for tropical conditions!

September Temperature in Paso San Juan

In September in Paso San Juan, the average temperature is 28°C (83°F). The maximum can reach 37°C (99°F), while the minimum can be as low as 23°C (73°F). This warm climate makes it an ideal destination for beach lovers and those seeking sunshine.

September Weather in Paso San Juan: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Paso San Juan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Paso San Juan, September typically has an average temperature of 28°C (83°F), with highs reaching up to 37°C (99°F) and lows dropping to around 23°C (73°F).
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Data source: Temperature data for Paso San Juan 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 Paso San Juan

In Paso San Juan in September, the precipitation amount is 232 mm (9.1 in) recorded over a span of 23 days.

September Precipitation Trends in Paso San Juan

The chart displays monthly precipitation patterns in Paso San Juan, 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 Paso San Juan, September typically receives around 232 mm (9.1 inches) of precipitation spread over approximately 23 days.
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Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Paso San Juan

In Paso San Juan in September humidity is 86%. With an average temperature of 28°C (83°F), this humidity feels like a heavy blanket enveloping you, making every step feel sluggish and every breath a reminder of the tropical heat, which can be quite challenging for traveling.

September Average Humidity in Paso San Juan

This chart illustrates the average monthly humidity levels in Paso San Juan, 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 Paso San Juan is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%86%84%81%82%81%81%82%86%90%91%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Paso San Juan

In Paso San Juan 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 Paso San Juan.

Maximum UV Index Levels in Paso San Juan for September

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

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

This table compares monthly weather conditions in Paso San Juan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)26 mm (1.0 inches)88%very high
February Weather24°C (76°F)26 mm (1.0 inches)86%extreme
March Weather26°C (79°F)20 mm (0.8 inches)84%extreme
April Weather28°C (83°F)17 mm (0.7 inches)81%extreme
May Weather30°C (86°F)47 mm (1.9 inches)82%extreme
June Weather29°C (84°F)178 mm (7.0 inches)81%extreme
July Weather29°C (84°F)195 mm (7.7 inches)81%extreme
August Weather29°C (84°F)180 mm (7.1 inches)82%extreme
September Weather28°C (83°F)232 mm (9.1 inches)86%extreme
October Weather28°C (82°F)111 mm (4.4 inches)90%extreme
November Weather25°C (78°F)46 mm (1.8 inches)91%very high
December Weather24°C (75°F)14 mm (0.5 inches)91%high

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