September Weather in San Isidro (La Loma), Mexico

Last updated: August 27, 2025

In San Isidro (La Loma), Mexico, the average temperature in September hovers around 20°C (68°F), with lows of 10°C (49°F) and highs reaching up to 30°C (87°F). Expect 153 mm (6.0 in) of precipitation spread over 16 days, contributing to an average humidity level of 81%. It's a month that balances warmth with a touch of moisture, perfect for outdoor adventures or cozy indoor moments!

September Temperature in San Isidro (La Loma)

In September in San Isidro (La Loma), the average temperature is 20°C (68°F). Maximums can reach 30°C (87°F) and minimums can be as low as 10°C (49°F). This pleasant climate makes San Isidro (La Loma) an ideal destination for travelers looking to enjoy mild weather and outdoor activities.

September Weather in San Isidro (La Loma): Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in San Isidro (La Loma), showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Isidro (La Loma), September typically has an average temperature of 20°C (68°F), with highs reaching up to 30°C (87°F) and lows dropping to around 10°C (49°F).

Data source: Temperature data for San Isidro (La Loma) generated using information from the Copernicus Climate Change Service.

September Precipitation in San Isidro (La Loma)

In San Isidro (La Loma) in September, the precipitation amount is 153 mm (6.0 in) over the course of 16 days.

September Precipitation Trends in San Isidro (La Loma)

The chart displays monthly precipitation patterns in San Isidro (La Loma), 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 Isidro (La Loma), September typically receives around 153 mm (6.0 inches) of precipitation spread over approximately 16 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in San Isidro (La Loma)

In San Isidro (La Loma) in September humidity is 81%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace that can make outdoor activities feel steamy and exhausting, potentially leading travelers to seek shade or a refreshing drink more often.

September Average Humidity in San Isidro (La Loma)

This chart illustrates the average monthly humidity levels in San Isidro (La Loma), 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 Isidro (La Loma) is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Isidro (La Loma)

In San Isidro (La Loma) 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 San Isidro (La Loma), you can check here.

Maximum UV Index Levels in San Isidro (La Loma) for September

The chart shows the monthly maximum UV Index (UVI) for San Isidro (La Loma) 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 Isidro (La Loma) typically reaches 14, which falls under the extreme exposure category.

Data source: San Isidro (La Loma) 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 Isidro (La Loma) Compares to Other Months

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

This table compares monthly weather conditions in San Isidro (La Loma), showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	15°C (60°F)	2 mm (0.1 inches)	74%	very high
February Weather	18°C (64°F)	6 mm (0.2 inches)	65%	extreme
March Weather	20°C (69°F)	8 mm (0.3 inches)	58%	extreme
April Weather	22°C (72°F)	7 mm (0.3 inches)	58%	extreme
May Weather	23°C (74°F)	50 mm (2.0 inches)	67%	extreme
June Weather	22°C (71°F)	146 mm (5.8 inches)	76%	extreme
July Weather	20°C (69°F)	122 mm (4.8 inches)	67%	extreme
August Weather	21°C (70°F)	110 mm (4.3 inches)	68%	extreme
September Weather	20°C (68°F)	153 mm (6.0 inches)	81%	extreme
October Weather	19°C (67°F)	47 mm (1.8 inches)	83%	extreme
November Weather	17°C (63°F)	18 mm (0.7 inches)	84%	very high
December Weather	15°C (60°F)	4 mm (0.2 inches)	81%	very high