October Weather in San Diego de la Union, Mexico

Last updated: August 27, 2025

In October, the average temperature in San Diego de la Union, Mexico is a pleasant 17°C (63°F), with minimums dropping to 4°C (40°F) and maximums peaking at 29°C (84°F). Expect around 58 mm (2.3 in) of precipitation spread across 9 days, contributing to an average humidity of 83%. Enjoy the mild weather and don't forget your umbrella!

October Temperature in San Diego de la Union

In October in San Diego de la Union, the average temperature is 17°C (63°F), with maximums reaching up to 29°C (84°F) and minimums dipping as low as 4°C (40°F). This variety in temperature makes it an ideal time for travelers to enjoy outdoor activities while also being prepared for cooler evenings.

October Weather in San Diego de la Union: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in San Diego de la Union, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Diego de la Union, October typically has an average temperature of 17°C (63°F), with highs reaching up to 29°C (84°F) and lows dropping to around 4°C (40°F).

Data source: Temperature data for San Diego de la Union generated using information from the Copernicus Climate Change Service.

October Precipitation in San Diego de la Union

In San Diego de la Union in October, the precipitation amount is 58 mm (2.3 in) spread over 9 days.

October Precipitation Trends in San Diego de la Union

The chart displays monthly precipitation patterns in San Diego de la Union, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In San Diego de la Union, October typically receives around 58 mm (2.3 inches) of precipitation spread over approximately 9 days.

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

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Millimeters (mm) Inches (in)

October Humidity in San Diego de la Union

In San Diego de la Union in October humidity is 83%. With an average temperature of 17°C (63°F), this humidity feels like a warm, sticky embrace that can make traveling uncomfortable, as the air clings to the skin and creates a heavy atmosphere, often leading to fatigue and a longing for the cooling relief of shade or air conditioning.

October Average Humidity in San Diego de la Union

This chart illustrates the average monthly humidity levels in San Diego de la Union, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in San Diego de la Union is approximately 83%, offering insight into how humid the weather typically is during this month.

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

October UV Index in San Diego de la Union

In San Diego de la Union in October, 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 Diego de la Union.

Maximum UV Index Levels in San Diego de la Union for October

The chart shows the monthly maximum UV Index (UVI) for San Diego de la Union in October, 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 October, the maximum UV index in San Diego de la Union typically reaches 12, which falls under the extreme exposure category.

Data source: San Diego de la Union October 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 October Weather in San Diego de la Union Compares to Other Months

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

This table compares monthly weather conditions in San Diego de la Union, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (55°F)	5 mm (0.2 inches)	74%	very high
February Weather	15°C (60°F)	7 mm (0.3 inches)	65%	extreme
March Weather	18°C (64°F)	10 mm (0.4 inches)	58%	extreme
April Weather	20°C (69°F)	7 mm (0.3 inches)	58%	extreme
May Weather	22°C (71°F)	39 mm (1.5 inches)	67%	extreme
June Weather	20°C (69°F)	115 mm (4.5 inches)	76%	extreme
July Weather	19°C (67°F)	90 mm (3.5 inches)	67%	extreme
August Weather	20°C (68°F)	70 mm (2.8 inches)	68%	extreme
September Weather	19°C (66°F)	110 mm (4.3 inches)	81%	extreme
October Weather	17°C (63°F)	58 mm (2.3 inches)	83%	extreme
November Weather	15°C (59°F)	18 mm (0.7 inches)	84%	very high
December Weather	13°C (56°F)	5 mm (0.2 inches)	81%	very high