Guanajuato Weather in August

The climate in Guanajuato during August can be summarized as mild and wet.

August is in the summer in Guanajuato and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 23°C (73°F), whilst at night 11°C (52°F) is normal.

On average August is the 2nd wettest month of the year in Guanajuato with around 121mm 4.8 inches of rain making it a wet time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.5 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Guanajuato in August 2025.