September Weather in Alfaro, Mexico

Last updated: August 27, 2025

In Alfaro, Mexico, the average temperature in September hovers around 18°C (64°F), with minimums dipping to 8°C (46°F) and maximums peaking at 27°C (82°F). Expect about 166 mm (6.5 in) of precipitation spread across 18 days, contributing to an average humidity of 81%.

September Temperature in Alfaro

In September in Alfaro, the average temperature is 18°C (64°F). Maximums can reach 27°C (82°F), while minimums can drop to as low as 8°C (46°F). It's a comfortable time to visit, perfect for exploring the sights and enjoying outdoor activities.

September Weather in Alfaro: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Alfaro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alfaro, September typically has an average temperature of 18°C (64°F), with highs reaching up to 27°C (82°F) and lows dropping to around 8°C (46°F).

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

September Precipitation in Alfaro

In Alfaro in September, the total precipitation amount is 166 mm (6.5 in) over a span of 18 days.

September Precipitation Trends in Alfaro

The chart displays monthly precipitation patterns in Alfaro, 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 Alfaro, September typically receives around 166 mm (6.5 inches) of precipitation spread over approximately 18 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 Alfaro

In Alfaro in September, humidity is 81%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making travel both refreshing and slightly stifling at the same time.

September Average Humidity in Alfaro

This chart illustrates the average monthly humidity levels in Alfaro, 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 Alfaro 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 Alfaro

In Alfaro 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 Alfaro, you can check here.

Maximum UV Index Levels in Alfaro for September

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

Data source: Alfaro 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 Alfaro Compares to Other Months

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

This table compares monthly weather conditions in Alfaro, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (56°F)	7 mm (0.3 inches)	74%	very high
February Weather	15°C (60°F)	9 mm (0.4 inches)	65%	extreme
March Weather	18°C (65°F)	10 mm (0.4 inches)	58%	extreme
April Weather	20°C (68°F)	5 mm (0.2 inches)	58%	extreme
May Weather	21°C (70°F)	48 mm (1.9 inches)	67%	extreme
June Weather	20°C (68°F)	184 mm (7.2 inches)	76%	extreme
July Weather	18°C (65°F)	169 mm (6.7 inches)	67%	extreme
August Weather	19°C (66°F)	147 mm (5.8 inches)	68%	extreme
September Weather	18°C (64°F)	166 mm (6.5 inches)	81%	extreme
October Weather	17°C (63°F)	65 mm (2.6 inches)	83%	extreme
November Weather	15°C (59°F)	18 mm (0.7 inches)	84%	very high
December Weather	13°C (56°F)	6 mm (0.2 inches)	81%	very high