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September Weather in San Juanico, Mexico

Last updated: August 27, 2025

In San Juanico, Mexico, the average temperature in September reaches a warm 28°C (83°F). Expect minimums around 17°C (63°F) and maximums soaring up to 38°C (100°F). With an average humidity of 75%, you might feel the warmth even more. There’s a likelihood of some rain, with a total precipitation of 19 mm (0.7 in) expected over the course of just 1 day. Enjoy the vibrant weather!

September Temperature in San Juanico

In September in San Juanico, the average temperature is 28°C (83°F). Maximums can reach 38°C (100°F), while minimums can drop as low as 17°C (63°F). This warm climate makes San Juanico an excellent destination for sun-seekers and outdoor enthusiasts.

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

The chart illustrates September temperature patterns in San Juanico, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Juanico, September typically has an average temperature of 28°C (83°F), with highs reaching up to 38°C (100°F) and lows dropping to around 17°C (63°F).
JanFebMarAprMayJunJulAugSepOctNovDec656567707074808382777266
Data source: Temperature data for San Juanico 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 Juanico

In San Juanico in September, the precipitation amount is 19 mm (0.7 in) over a duration of 1 day.

September Precipitation Trends in San Juanico

The chart displays monthly precipitation patterns in San Juanico, 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 Juanico, September typically receives around 19 mm (0.7 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec156130010319181111
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Juanico

In San Juanico in September humidity is 75%. With an average temperature of 28°C (83°F), this humidity feels like a warm blanket enveloping you, making outdoor activities feel particularly heavy, and prompting frequent breaks in the shade to stay comfortable while traveling.

September Average Humidity in San Juanico

This chart illustrates the average monthly humidity levels in San Juanico, 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 Juanico is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%69%61%58%61%61%63%70%75%72%72%72%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Juanico

In San Juanico 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 San Juanico.

Maximum UV Index Levels in San Juanico for September

The chart shows the monthly maximum UV Index (UVI) for San Juanico 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 Juanico typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec6810121212121212976
Data source: San Juanico 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 Juanico Compares to Other Months

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

This table compares monthly weather conditions in San Juanico, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (65°F)14 mm (0.6 inches)71%high
February Weather18°C (66°F)6 mm (0.2 inches)69%very high
March Weather19°C (67°F)13 mm (0.5 inches)61%very high
April Weather21°C (70°F)0 mm (0.0 inches)58%extreme
May Weather21°C (71°F)0 mm (0.0 inches)61%extreme
June Weather23°C (74°F)1 mm (0.0 inches)61%extreme
July Weather27°C (80°F)0 mm (0.0 inches)63%extreme
August Weather29°C (84°F)3 mm (0.1 inches)70%extreme
September Weather28°C (83°F)19 mm (0.7 inches)75%extreme
October Weather25°C (78°F)18 mm (0.7 inches)71%very high
November Weather22°C (72°F)11 mm (0.4 inches)72%high
December Weather19°C (66°F)11 mm (0.4 inches)72%high

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