July Weather in San Guillermo, Mexico

Last updated: August 27, 2025

In July, the average temperature in San Guillermo, Mexico hovers around 21°C (70°F), offering a pleasant climate. Expect temperatures to dip as low as 13°C (56°F) and soar up to 31°C (88°F). This month typically sees 184 mm (7.2 in) of precipitation spread across 21 days, contributing to a 67% average humidity level. Embrace the variability and plan accordingly!

July Temperature in San Guillermo

In July in San Guillermo, the average temperature is 21°C (70°F). Maximums can reach 31°C (88°F), while minimums can drop to as low as 13°C (56°F). This mild climate makes San Guillermo an ideal destination for travelers seeking pleasant weather during this time of year.

July Weather in San Guillermo: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in San Guillermo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Guillermo, July typically has an average temperature of 21°C (70°F), with highs reaching up to 31°C (88°F) and lows dropping to around 13°C (56°F).

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

July Precipitation in San Guillermo

In San Guillermo in July, the precipitation amount is 184 mm (7.2 in) spread over 21 days.

July Precipitation Trends in San Guillermo

The chart displays monthly precipitation patterns in San Guillermo, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In San Guillermo, July typically receives around 184 mm (7.2 inches) of precipitation spread over approximately 21 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

July Humidity in San Guillermo

In San Guillermo in July humidity is 67%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, making travel a bit stifling but still enjoyable if you're prepared with light clothing and plenty of water.

July Average Humidity in San Guillermo

This chart illustrates the average monthly humidity levels in San Guillermo, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in San Guillermo is approximately 67%, offering insight into how humid the weather typically is during this month.

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

July UV Index in San Guillermo

In San Guillermo in July, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in San Guillermo.

Maximum UV Index Levels in San Guillermo for July

The chart shows the monthly maximum UV Index (UVI) for San Guillermo in July, 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 July, the maximum UV index in San Guillermo typically reaches 13, which falls under the extreme exposure category.

Data source: San Guillermo July 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 July Weather in San Guillermo Compares to Other Months

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

This table compares monthly weather conditions in San Guillermo, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	16°C (61°F)	3 mm (0.1 inches)	74%	very high
February Weather	18°C (65°F)	5 mm (0.2 inches)	65%	extreme
March Weather	21°C (71°F)	7 mm (0.3 inches)	58%	extreme
April Weather	23°C (74°F)	4 mm (0.1 inches)	58%	extreme
May Weather	25°C (76°F)	33 mm (1.3 inches)	67%	extreme
June Weather	23°C (74°F)	151 mm (6.0 inches)	76%	extreme
July Weather	21°C (70°F)	184 mm (7.2 inches)	67%	extreme
August Weather	21°C (70°F)	181 mm (7.1 inches)	68%	extreme
September Weather	20°C (69°F)	164 mm (6.5 inches)	81%	extreme
October Weather	20°C (68°F)	49 mm (1.9 inches)	83%	extreme
November Weather	18°C (65°F)	16 mm (0.6 inches)	84%	very high
December Weather	16°C (61°F)	3 mm (0.1 inches)	81%	very high