San Miguel de Allende Weather in August
In San Miguel de Allende, August brings high daytime temperatures around 28°C (82°F), with nights cooling to 15°C (59°F). Expect quite a bit of rainfall this month.
Rainfall in San Miguel de Allende in August
You can expect rain on around 11 days based on historical patterns, with 109 mm (4.3 in) average for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in San Miguel de Allende in August
August in San Miguel de Allende brings high temperatures, with highs of 28°C (82°F) and nights around 15°C (59°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights drop to around 15°C (59°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in San Miguel de Allende in August
Expect sunny days throughout the month, with an estimated 221 hours of sunshine. This makes it a pleasant time to visit San Miguel de Allende.For San Miguel de Allende itself, January, February, March, October, November and December generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our San Miguel de Allende's climate page.
San Miguel de Allende Temperature in August
Min Temperature
15°C (59°F)
Max Temperature
28°C (82°F)
Chance of Rain
38%
Precipitation
109 mm (4.3 in)
Rainy days
11 days
Sunshine
221 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in San Miguel de Allende typically stay consistent throughout August, with daily highs averaging around 28°C (82°F). Nights are pleasant, with lows around 15°C (59°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for San Miguel de Allende in August
Browse day-by-day weather records for San Miguel de Allende spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San Miguel de Allende historical weather extremes in August
Based on 38 years of weather observations in San Miguel de Allende between 1987 and 2025, these are the recorded extremes.
- On August 14, 2009, temperatures climbed to 33°C (91°F), marking the warmest August day on record.
- The coldest August day was on August 19, 1988, with a maximum of 19°C (66°F).
- The coldest night in August in San Miguel de Allende was on August 19, 2011, with a minimum of 9°C (48°F).
Best Places in Mexico in August
Find out more about the weather in Mexico and which places have the best travel conditions in this month. See all of Mexico in August →
perfect weather
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What to Wear in San Miguel de Allende in August
Warm weather calls for comfortable, breathable clothing in August. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in San Miguel de Allende in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our San Miguel de Allende's climate page.
See the full San Miguel de Allende climate overview or explore weather in Mexico.
