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September Weather in San Lorenzo, Mexico

Last updated: August 27, 2025

In September, the average temperature in San Lorenzo, Mexico is a pleasant 21°C (71°F), with a range that can dip to a cooler 10°C (51°F) and peak at a warm 33°C (92°F). Expect some rain, with 63 mm (2.5 in) of precipitation over approximately 11 days, contributing to an average humidity of 79%.

September Temperature in San Lorenzo

In September in San Lorenzo, the average temperature is 21°C (71°F), with maximums reaching up to 33°C (92°F) and minimums dropping as low as 10°C (51°F). This climate makes it an ideal time to explore and enjoy outdoor activities in San Lorenzo.

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

The chart illustrates September temperature patterns in San Lorenzo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Lorenzo, September typically has an average temperature of 21°C (71°F), with highs reaching up to 33°C (92°F) and lows dropping to around 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec495460677480757570655850
Data source: Temperature data for San Lorenzo 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 Lorenzo

In San Lorenzo in September, the precipitation amount is 63 mm (2.5 in) during a total of 11 days.

September Precipitation Trends in San Lorenzo

The chart displays monthly precipitation patterns in San Lorenzo, 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 Lorenzo, September typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec6343327656264251514
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Lorenzo

In San Lorenzo in September humidity is 79%. With an average temperature of 21°C (71°F), this humidity feels like a warm, sticky embrace that can make outdoor activities feel laborious and exhausting. Travelers should be prepared to hydrate frequently and take breaks in shaded areas to fully enjoy their time exploring.

September Average Humidity in San Lorenzo

This chart illustrates the average monthly humidity levels in San Lorenzo, 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 Lorenzo is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%71%60%52%49%50%65%70%79%77%83%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Lorenzo

In San Lorenzo 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 Lorenzo.

Maximum UV Index Levels in San Lorenzo for September

The chart shows the monthly maximum UV Index (UVI) for San Lorenzo 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 Lorenzo typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec69111314131313121086
Data source: San Lorenzo 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 Lorenzo Compares to Other Months

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

This table compares monthly weather conditions in San Lorenzo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (50°F)6 mm (0.3 inches)78%high
February Weather12°C (54°F)3 mm (0.1 inches)71%very high
March Weather16°C (60°F)4 mm (0.2 inches)60%extreme
April Weather20°C (68°F)3 mm (0.1 inches)52%extreme
May Weather23°C (74°F)3 mm (0.1 inches)49%extreme
June Weather26°C (80°F)27 mm (1.1 inches)50%extreme
July Weather24°C (76°F)65 mm (2.6 inches)65%extreme
August Weather24°C (75°F)62 mm (2.4 inches)70%extreme
September Weather21°C (71°F)63 mm (2.5 inches)79%extreme
October Weather19°C (66°F)25 mm (1.0 inches)77%very high
November Weather14°C (58°F)15 mm (0.6 inches)83%very high
December Weather10°C (50°F)14 mm (0.5 inches)84%high

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