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September Weather in San Juanito, Mexico

Last updated: August 27, 2025

In September, the average temperature in San Juanito, Mexico hovers around 16°C (60°F), with a range that varies from a chilly 5°C (41°F) to a warm 27°C (81°F). Expect 111 mm (4.4 in) of precipitation spread over approximately 13 days, contributing to an average humidity of 82%—perfect for those who enjoy a moist, vibrant atmosphere!

September Temperature in San Juanito

In September in San Juanito, the average temperature is 16°C (60°F). Maximums can reach 27°C (81°F), while minimums can drop as low as 5°C (41°F). This makes it an ideal time for travelers to enjoy mild weather while exploring the beauty of San Juanito.

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

The chart illustrates September temperature patterns in San Juanito, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Juanito, September typically has an average temperature of 16°C (60°F), with highs reaching up to 27°C (81°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec424449556166636360564943
Data source: Temperature data for San Juanito 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 San Juanito

In San Juanito in September, the precipitation amount reaches 111 mm (4.4 in) over the course of 13 days.

September Precipitation Trends in San Juanito

The chart displays monthly precipitation patterns in San Juanito, 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 San Juanito, September typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec1727256958231212111512124
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Juanito

In San Juanito in September humidity is 82%. With an average temperature of 16°C (60°F), this humidity feels like walking through a warm, thick blanket that clings to your skin, making every step feel heavier and travel more exhausting.

September Average Humidity in San Juanito

This chart illustrates the average monthly humidity levels in San Juanito, 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 San Juanito is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%67%60%51%47%50%70%82%82%78%78%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Juanito

In San Juanito 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 San Juanito.

Maximum UV Index Levels in San Juanito for September

The chart shows the monthly maximum UV Index (UVI) for San Juanito 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 San Juanito typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec710111414141413131186
Data source: San Juanito 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 San Juanito Compares to Other Months

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

This table compares monthly weather conditions in San Juanito, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)17 mm (0.7 inches)74%high
February Weather7°C (44°F)27 mm (1.1 inches)67%very high
March Weather10°C (49°F)25 mm (1.0 inches)60%extreme
April Weather13°C (55°F)6 mm (0.2 inches)51%extreme
May Weather16°C (61°F)9 mm (0.4 inches)47%extreme
June Weather19°C (67°F)58 mm (2.3 inches)50%extreme
July Weather17°C (63°F)231 mm (9.1 inches)70%extreme
August Weather17°C (63°F)212 mm (8.4 inches)81%extreme
September Weather16°C (60°F)111 mm (4.4 inches)82%extreme
October Weather13°C (56°F)51 mm (2.0 inches)78%extreme
November Weather10°C (50°F)21 mm (0.8 inches)78%very high
December Weather6°C (43°F)24 mm (0.9 inches)80%high

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