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September Weather in San Francisquito, Mexico

Last updated: August 27, 2025

In September, the average temperature in San Francisquito, Mexico is a warm 28°C (83°F), with temperatures ranging from a comfortable 23°C (74°F) to a peak of 34°C (94°F). Be prepared for approximately 165 mm (6.5 in) of rainfall over 21 days, resulting in an average humidity of 83%. Enjoy the tropical vibes!

September Temperature in San Francisquito

In September in San Francisquito, the average temperature is 28°C (83°F), with maximums reaching up to 34°C (94°F) and minimums dipping as low as 23°C (74°F). This pleasant climate makes it an ideal destination for outdoor activities and exploring the local attractions.

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

The chart illustrates September temperature patterns in San Francisquito, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Francisquito, September typically has an average temperature of 28°C (83°F), with highs reaching up to 34°C (94°F) and lows dropping to around 23°C (74°F).
JanFebMarAprMayJunJulAugSepOctNovDec697072757982858483827771
Data source: Temperature data for San Francisquito 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 Francisquito

In San Francisquito in September, the precipitation amount is 165 mm (6.5 in) spread over 21 days.

September Precipitation Trends in San Francisquito

The chart displays monthly precipitation patterns in San Francisquito, 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 Francisquito, September typically receives around 165 mm (6.5 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec1120000298523816581813
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Francisquito

In San Francisquito in September humidity is 83%. With an average temperature of 28°C (83°F), this humidity feels like a warm, sticky blanket wrapping around you, making travel uncomfortable and requiring frequent breaks to hydrate and cool down.

September Average Humidity in San Francisquito

This chart illustrates the average monthly humidity levels in San Francisquito, 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 Francisquito is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%66%61%56%61%73%82%83%83%79%77%78%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Francisquito

In San Francisquito 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 Francisquito.

Maximum UV Index Levels in San Francisquito for September

The chart shows the monthly maximum UV Index (UVI) for San Francisquito 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 Francisquito typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec710111313121212121086
Data source: San Francisquito 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 Francisquito Compares to Other Months

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

This table compares monthly weather conditions in San Francisquito, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (69°F)11 mm (0.4 inches)74%high
February Weather21°C (70°F)20 mm (0.8 inches)66%very high
March Weather22°C (72°F)0 mm (0.0 inches)61%extreme
April Weather24°C (75°F)0 mm (0.0 inches)56%extreme
May Weather26°C (79°F)0 mm (0.0 inches)61%extreme
June Weather28°C (83°F)29 mm (1.1 inches)73%extreme
July Weather29°C (85°F)85 mm (3.4 inches)82%extreme
August Weather29°C (84°F)238 mm (9.4 inches)83%extreme
September Weather28°C (83°F)165 mm (6.5 inches)83%extreme
October Weather28°C (82°F)81 mm (3.2 inches)78%very high
November Weather25°C (77°F)8 mm (0.3 inches)77%very high
December Weather22°C (71°F)13 mm (0.5 inches)78%high

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