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May in Guanajuato City brings very high temperatures, with highs of 31°C (88°F) and nights dropping to 15°C (59°F). Expect some rainfall, with around 52 mm (2 in) typical for the month.
May in Guanajuato City can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Pick a month to see the average temperature, rainfall and sunshine in Guanajuato City - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Guanajuato City typically stay consistent throughout May, with daily highs averaging around 31°C (88°F). Nights are pleasant, with lows typically ranging from 13°C (55°F) to 16°C (61°F).
Browse day-by-day weather records for Guanajuato City spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
According to our 40 years of weather records for Guanajuato City, the following extremes were recorded between 1986 and 2026.
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 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).
Warm temperatures in May make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Rain gear is recommended, you can expect wet weather on multiple days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Wind Speed
See the full Guanajuato City climate overview or explore weather in Mexico.
Where to go in May - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
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