Guanajuato is a landlocked state in Mexico's colonial heartland, built on centuries of silver wealth. Its UNESCO-listed capital, Guanajuato City, is a maze of tunnels, brightly painted hillside houses, and baroque churches, while the nearby Historic Centre of San Miguel de Allende draws artists and expatriates to its pink Parroquia and cobblestone streets. The state also holds Dolores Hidalgo, cradle of Mexican independence, and León, the country's leather and shoe-manufacturing capital.
Guanajuato state sits on the high Bajio plateau, with the historic capital Guanajuato City at roughly 2,000 meters elevation giving it a semi-arid highland climate with a pronounced dry season and mild, low-humidity air year-round. Days are warm to hot (23-31C/73-88F) while nights stay cool even in summer, especially in the colonial hill towns. The dry season runs November through April with clear skies and minimal rain, while the rainy season from June through September brings brief, often dramatic afternoon thunderstorms that clear quickly. Guanajuato City, San Miguel de Allende, and Dolores Hidalgo share this pattern, though San Miguel sits slightly lower and can feel a touch warmer at midday.
Best time to visit
Best: Year-round
Avoid: None
Month-by-month weather
Typical conditions throughout the year.
January
15C/59F
Cool, dry, and sunny with cold nights near freezing; low season with pleasant daytime walking weather
February
17C/63F
Still cool at night but warming during the day; dry and clear, good for sightseeing
March
19C/66F
Warming quickly, dry and dusty; Semana Santa (if in March) brings crowds and processions
April
21C/70F
Hot and dry, one of the driest months; strong sun but comfortable evenings
May
23C/73F
The hottest month, dry until the very end when the first rains often arrive; intense midday sun
June
21C/70F
Rainy season begins; warm mornings, brief heavy afternoon storms, and a greening landscape
July
20C/68F
Peak of the rainy season with regular afternoon thunderstorms; mornings usually clear and pleasant
August
20C/68F
Similar to July, consistently wet afternoons, lush countryside, fewer international tourists
September
19C/66F
Rains continue but begin easing late in the month; Independence Day celebrations (September 15-16) are especially significant in Dolores Hidalgo
October
18C/64F
Rain tapers off, skies clear, temperatures moderate; the Cervantino Festival fills Guanajuato City with visitors
November
16C/61F
Dry, mild, and clear; Day of the Dead celebrations in early November, comfortable sightseeing weather
December
15C/59F
Cool, dry, and sunny days with cold nights; festive atmosphere around Christmas and New Year
The seasons
What to expect in each part of the year.
Spring
Months: Mar-May
The hottest, driest stretch of the year, with clear skies, dusty landscapes, and daytime highs reaching 29-31C (84-88F) by May, just before the rains begin. Semana Santa (Easter week) brings domestic crowds and processions.
Summer
Months: Jun-Sep
The rainy season, with warm days (24-27C/75-81F) interrupted most afternoons by short, heavy thunderstorms that typically clear within an hour, leaving the countryside green and lush. Mornings are usually sunny and ideal for sightseeing.
Fall
Months: Oct-Nov
Rains taper off through October as skies clear and temperatures moderate (20-25C/68-77F). The Festival Internacional Cervantino fills Guanajuato City in October with performances and large crowds, and Day of the Dead follows in early November.
Winter
Months: Dec-Feb
The coolest, driest months, with warm sunny days (21-23C/70-73F) but cold nights that can dip close to freezing, particularly in Guanajuato City's hillside neighborhoods. Skies are reliably clear and rain is rare.
Crowds & peak times
When to expect tourists and when to avoid them.
- High Season
- October (Cervantino Festival) and early November (Day of the Dead); Semana Santa (Easter week, variable March/April); Christmas and New Year in December
- Shoulder Season
- January-February and September (comfortable weather, fewer crowds outside festivals)
- Low Season
- June-August (rainy season keeps international visitor numbers lower despite pleasant mornings)
Major events & festivals
Time your visit around what matters.
Festival Internacional Cervantino
One of Latin America's premier performing arts festivals, filling Guanajuato City's plazas, theaters, and callejones with music, dance, and theater from around the world for roughly two and a half weeks
Dia de los Muertos (Day of the Dead)
Altars, marigold displays, cemetery vigils, and parades mark this deeply rooted Mexican tradition across Guanajuato City, San Miguel de Allende, and Dolores Hidalgo
Grito de Independencia in Dolores Hidalgo
Dolores Hidalgo, birthplace of Mexican independence, hosts especially significant Independence Day ceremonies reenacting Miguel Hidalgo's 1810 call to arms
Semana Santa (Holy Week)
Processions, reenactments, and religious observances draw large domestic crowds to Guanajuato City and San Miguel de Allende in the week before Easter
San Miguel de Allende's Fiestas de San Miguel Arcangel
Multi-day celebration honoring the town's patron saint with fireworks, traditional Los Locos parade, and street parties
Callejoneadas
Traditional walking processions led by costumed student minstrels (estudiantinas) through Guanajuato City's narrow alleyways, a beloved nightly tradition rather than a single dated event