August Weather in Hermosillo, Mexico

Last updated: August 27, 2025

In Hermosillo, Mexico, the average temperature in August reaches a warm 33°C (91°F), with the minimum dipping to 24°C (76°F) and the maximum soaring to 44°C (111°F). Expect some rain, with an average precipitation of 42 mm (1.7 in) spread over 9 days. The humidity hovers around a comfortable 71%, creating a notably tropical atmosphere.

August Temperature in Hermosillo

In August in Hermosillo, the average temperature is 33°C (91°F). Maximums can reach 44°C (111°F), and minimums can be as low as 24°C (76°F). Be prepared for a hot climate and stay hydrated during your travels.

August Weather in Hermosillo: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Hermosillo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hermosillo, August typically has an average temperature of 33°C (91°F), with highs reaching up to 44°C (111°F) and lows dropping to around 24°C (76°F).

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

August Precipitation in Hermosillo

In Hermosillo in August, the precipitation amount is 42 mm (1.7 in) spread over 9 days.

August Precipitation Trends in Hermosillo

The chart displays monthly precipitation patterns in Hermosillo, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Hermosillo, August typically receives around 42 mm (1.7 inches) of precipitation spread over approximately 9 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Hermosillo

In Hermosillo in August, humidity is 71%. With an average temperature of 33°C (91°F), this humidity feels like a heavy blanket enveloping you, making outdoor activities feel sticky and exhausting, so travelers should stay hydrated and seek shade frequently.

August Average Humidity in Hermosillo

This chart illustrates the average monthly humidity levels in Hermosillo, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Hermosillo is approximately 71%, offering insight into how humid the weather typically is during this month.

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

August UV Index in Hermosillo

In Hermosillo in August, 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 Hermosillo.

Maximum UV Index Levels in Hermosillo for August

The chart shows the monthly maximum UV Index (UVI) for Hermosillo in August, 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 August, the maximum UV index in Hermosillo typically reaches 12, which falls under the extreme exposure category.

Data source: Hermosillo August 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 August Weather in Hermosillo Compares to Other Months

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

This table compares monthly weather conditions in Hermosillo, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	16°C (62°F)	17 mm (0.7 inches)	76%	moderate
February Weather	18°C (64°F)	14 mm (0.6 inches)	68%	very high
March Weather	20°C (69°F)	13 mm (0.5 inches)	56%	very high
April Weather	25°C (77°F)	0 mm (0.0 inches)	42%	extreme
May Weather	27°C (81°F)	0 mm (0.0 inches)	36%	extreme
June Weather	32°C (90°F)	5 mm (0.2 inches)	33%	extreme
July Weather	33°C (91°F)	51 mm (2.0 inches)	47%	extreme
August Weather	33°C (91°F)	42 mm (1.7 inches)	71%	extreme
September Weather	30°C (87°F)	47 mm (1.9 inches)	80%	extreme
October Weather	27°C (81°F)	17 mm (0.7 inches)	73%	very high
November Weather	22°C (72°F)	15 mm (0.6 inches)	75%	high
December Weather	17°C (62°F)	12 mm (0.5 inches)	81%	moderate