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September Weather in La Lagunita, Mexico

Last updated: August 27, 2025

In La Lagunita, Mexico, the average temperature in September is a comfortable 18°C (65°F). During this time, you can expect minimum temperatures to dip to 9°C (48°F) and peak at a warm 28°C (83°F). Be prepared for some rain, as 115 mm (4.5 in) of precipitation is likely over 15 days, and the average humidity hovers around a high 81%.

September Temperature in La Lagunita

In September in La Lagunita, the average temperature is 18°C (65°F), with maximums reaching 28°C (83°F) and minimums dropping as low as 9°C (48°F). This pleasant climate makes La Lagunita an ideal destination for outdoor activities and exploration during this time.

September Weather in La Lagunita: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in La Lagunita, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In La Lagunita, September typically has an average temperature of 18°C (65°F), with highs reaching up to 28°C (83°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec545964677069676765635855
Data source: Temperature data for La Lagunita 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 La Lagunita

In La Lagunita in September, the total precipitation amount is 115 mm (4.5 in) over a span of 15 days.

September Precipitation Trends in La Lagunita

The chart displays monthly precipitation patterns in La Lagunita, 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 La Lagunita, September typically receives around 115 mm (4.5 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec1210973110410270115481410
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in La Lagunita

In La Lagunita in September, humidity is 81%. With an average temperature of 18°C (65°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier and the air thick and sultry—a challenging environment for traveling.

September Average Humidity in La Lagunita

This chart illustrates the average monthly humidity levels in La Lagunita, 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 La Lagunita is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%69%65%64%75%78%67%64%82%86%87%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in La Lagunita

In La Lagunita in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in La Lagunita, you can check here.

Maximum UV Index Levels in La Lagunita for September

The chart shows the monthly maximum UV Index (UVI) for La Lagunita 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 La Lagunita typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9111415151414141412108
Data source: La Lagunita 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 La Lagunita Compares to Other Months

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

This table compares monthly weather conditions in La Lagunita, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)12 mm (0.5 inches)75%very high
February Weather15°C (59°F)10 mm (0.4 inches)69%extreme
March Weather18°C (64°F)9 mm (0.4 inches)65%extreme
April Weather20°C (68°F)7 mm (0.3 inches)64%extreme
May Weather21°C (71°F)31 mm (1.2 inches)75%extreme
June Weather20°C (69°F)104 mm (4.1 inches)78%extreme
July Weather19°C (67°F)102 mm (4.0 inches)67%extreme
August Weather20°C (68°F)70 mm (2.8 inches)64%extreme
September Weather18°C (65°F)115 mm (4.5 inches)81%extreme
October Weather17°C (63°F)48 mm (1.9 inches)85%extreme
November Weather15°C (59°F)13 mm (0.5 inches)87%very high
December Weather13°C (55°F)10 mm (0.4 inches)87%very high

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