San Miguel de Allende
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San Miguel de Allende Weather in May

May in San Miguel de Allende brings very high temperatures, with highs of 32°C (90°F) and nights dropping to 15°C (59°F). Expect some rainfall, with around 48 mm (1.9 in) typical for the month.

Rainfall in San Miguel de Allende in May

Historically, May sees about 6 days of rain, with a monthly average of 48 mm (1.9 in). Showers tend to be short but heavy rather than persistent drizzle. When it rains, it usually means it, but it doesn't last long.

Temperature in San Miguel de Allende in May

May in San Miguel de Allende brings typical temperatures with highs around 32°C (90°F) and lows of 15°C (59°F). Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. Nights cool down to 15°C (59°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions. Although these are the average temperatures, expect warmer days occasionally. Wear cool clothing and stay hydrated to manage the heat.

Sunshine in San Miguel de Allende in May

With approximately 260 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

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.

San Miguel de Allende Temperature in May

Min Temperature
15°C (59°F)
Max Temperature
32°C (90°F)
Chance of Rain
19%
Precipitation
48 mm (1.9 in)
Rainy days
6 days
Sunshine
260 hours *
Percentage Sunshine
*
* Data from: Guanajuato City, Mexico (53 KM, 32 Miles).

San Miguel de Allende Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in San Miguel de Allende - and find the best time to visit.

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in San Miguel de Allende typically stay consistent throughout May, with daily highs averaging around 32°C (90°F). Nights are pleasant, with lows typically ranging from 13°C (55°F) to 16°C (61°F).

Average temperatures in May

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 May

Historical weather records for San Miguel de Allende in May

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 May

Based on weather observations in San Miguel de Allende between 1986 and 2026, these are the recorded extremes during May.

  • On May 10, 2003, temperatures climbed to 38°C (100°F), marking the warmest May day on record.
  • San Miguel de Allende registered its coldest May night on May 16, 2014, with temperatures dropping to 6°C (43°F).

Best Places in Mexico in May

Find out more about the weather in Mexico and which places have the best travel conditions in this month. See all of Mexico in May →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in San Miguel de Allende in May

Warm weather calls for comfortable, breathable clothing in May. 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). Rain is likely on several days, so bring a good rain jacket. 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 May

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    10/10
  • Cycling
    8/10
  • Walking
    8/10
  • Barbeque
    10/10
  • Camping
    10/10
  • Outdoor sports
    8/10

San Miguel de Allende 3-Day Forecast

More climate data for San Miguel de Allende

Popular in May

Where to go in May - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.