September Weather in San Cirilo, Mexico

Last updated: August 27, 2025

In September, the average temperature in San Cirilo, Mexico hovers around 18°C (65°F), offering a pleasant climate. However, be prepared for a temperature range that can dip to a cool 9°C (48°F) and peak at a warm 29°C (85°F). During this month, expect around 164 mm (6.4 in) of precipitation over 16 days, combined with an average humidity level of 81%, creating a humid and vibrant atmosphere.

September Temperature in San Cirilo

In September in San Cirilo, the average temperature is 18°C (65°F). The maximum can reach 29°C (85°F), and the minimum can be as low as 9°C (48°F). This pleasant climate makes San Cirilo an ideal destination for travelers seeking a comfortable getaway.

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

The chart illustrates September temperature patterns in San Cirilo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Cirilo, September typically has an average temperature of 18°C (65°F), with highs reaching up to 29°C (85°F) and lows dropping to around 9°C (48°F).

Data source: Temperature data for San Cirilo generated using information from the Copernicus Climate Change Service.

September Precipitation in San Cirilo

In San Cirilo in September, the total precipitation amount is 164 mm (6.4 in) spread over 16 days.

September Precipitation Trends in San Cirilo

The chart displays monthly precipitation patterns in San Cirilo, 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 Cirilo, September typically receives around 164 mm (6.4 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 Cirilo

In San Cirilo 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 San Cirilo

This chart illustrates the average monthly humidity levels in San Cirilo, 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 Cirilo 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 Cirilo

In San Cirilo 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 Cirilo, you can check here.

Maximum UV Index Levels in San Cirilo for September

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

Data source: San Cirilo 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 Cirilo Compares to Other Months

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

This table compares monthly weather conditions in San Cirilo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	14°C (58°F)	6 mm (0.2 inches)	74%	very high
February Weather	16°C (62°F)	7 mm (0.3 inches)	65%	extreme
March Weather	19°C (66°F)	11 mm (0.4 inches)	58%	extreme
April Weather	21°C (70°F)	12 mm (0.5 inches)	58%	extreme
May Weather	22°C (71°F)	42 mm (1.7 inches)	67%	extreme
June Weather	20°C (68°F)	149 mm (5.9 inches)	76%	extreme
July Weather	19°C (67°F)	108 mm (4.3 inches)	67%	extreme
August Weather	19°C (67°F)	99 mm (3.9 inches)	68%	extreme
September Weather	18°C (65°F)	164 mm (6.4 inches)	81%	extreme
October Weather	18°C (64°F)	63 mm (2.5 inches)	83%	extreme
November Weather	16°C (60°F)	19 mm (0.8 inches)	84%	very high
December Weather	14°C (58°F)	4 mm (0.2 inches)	81%	very high