Climate guide for Guanajuato, Mexico

Best Time to Visit
Guanajuato

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01 · Mexico

About Guanajuato

Guanajuato was one of the world's great silver cities, and its UNESCO-listed centre packs theatres, churches and markets into steep lanes above underground streets. The mummy museum and the Diego Rivera house sit close to the centre, and the callejoneadas — student singing processions — wander the alleys at night. March to May and October to November are the best months; the Cervantino festival fills October, and the rainy season greens the hills from June.

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Did you know?

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Travel Tips

01Best time & timing
Climate scores swing from 7.6/10 in August to 9.8/10 in February; the safest picks are February, April, October.
02Weather & what to pack
Expect around 15°C and 6 mm of rain in February, with roughly 25 bright days. Pack layers you can shed by midday plus one warm layer for the evening.
03Crowds & value
Peak-season pricing concentrates in February. For better value, May scores 9.1/10 at lower-season rates.

Things to do in Guanajuato

Guanajuato, Mexico. Live activities and tours from GetYourGuide, matched to this destination.

When to visit Guanajuato: the short answer

The best time to visit Guanajuato is February, followed by April, October. Those months combine the most usable temperatures with the fewest lost days to rain: February averages 15°C with 6 mm of rain and about 25 days with 6+ hours of sunshine. The months to avoid unless you have a specific reason are August, July. If budget matters more than perfect weather, July is the strongest of the low-rate months at 7.8/10.

Across the year Guanajuato swings from 14°C in December to 24°C in May, a 10-degree spread, while rainfall ranges from 1 mm in January to 142 mm in August. That is the whole planning problem in one sentence: Guanajuato is not equally good year-round, and the difference between the best and worst month here is 2.2 points on a 10-point scale.

Warmest month: May (24°C). Coolest: December (14°C). Driest: January (1 mm). Wettest: August (142 mm).

Guanajuato month by month

January ranks 6th of 12 for Guanajuato — one of the best windows

Best window · 9.4/10

January averages 14°C (57°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Rain is a non-issue at 1 mm for the month, with about 20 days with 6+ hours of sunshine and 10.9 hours of daylight to work with.

A 9.4/10 puts this among the year's best months in Guanajuato (6th of 12); only February scores higher, at 9.8/10.

Figure on peak pricing, with crowds are moderate.

Pack layers you can shed by midday plus one warm layer for the evening.

February in Guanajuato — the year's strongest window

Best window · 9.8/10

February averages 15°C (60°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Rain is a non-issue at 6 mm for the month, with about 25 days with 6+ hours of sunshine and 11.3 hours of daylight to work with.

On our climate-comfort scale this is the top-ranked month of the year for Guanajuato at 9.8/10 — the reference point every other month on this page is measured against.

Figure on peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack layers you can shed by midday plus one warm layer for the evening.

March ranks 4th of 12 for Guanajuato — one of the best windows

Best window · 9.7/10

Temperatures hover around 18°C (65°F) — the kind of month where neither heat nor cold forces the schedule.

At just 1 mm for the month, rain will not shape your plans; you get about 31 days with 6+ hours of sunshine and 11.9 hours of daylight.

On our climate-comfort scale this is one of the strongest months of the year for Guanajuato at 9.7/10 (4th of 12), just behind February at 9.8/10.

Expect peak pricing, and this is one of the busiest months here.

Pack layers you can shed by midday plus one warm layer for the evening.

April ranks 2nd of 12 for Guanajuato — one of the best windows

Best window · 9.8/10

April averages 21°C (70°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.

Rain is a non-issue at 10 mm for the month, with about 30 days with 6+ hours of sunshine and 12.5 hours of daylight to work with.

A 9.8/10 puts this among the year's best months in Guanajuato (2nd of 12); only February scores higher, at 9.8/10.

Plan for peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack light clothing, a hat and real sun protection.

May ranks 8th of 12 for Guanajuato — one of the best windows

Best window · 9.1/10

At 24°C (74°F) this is comfortable city weather in May, with sightseeing easiest before lunch and after the afternoon peak.

With around 26 mm of rain, any showers tend to pass through rather than settle in; about 31 days with 6+ hours of sunshine and 13 hours of daylight fill the rest.

On our climate-comfort scale this is one of the strongest months of the year for Guanajuato at 9.1/10 (8th of 12), just behind February at 9.8/10.

Budget for mid-season pricing, and crowds are moderate.

Pack light clothing, a hat and real sun protection.

June is one of the strongest months in Guanajuato (9th)

Best window · 8.7/10

June averages 23°C (73°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.

Rainfall runs 71 mm, so plan one flexible day in three; you still get about 30 days with 6+ hours of sunshine and 13.3 hours of daylight.

A 8.7/10 puts this among the year's best months in Guanajuato (9th of 12); only February scores higher, at 9.8/10.

Plan for mid-season pricing, with crowds are moderate.

Pack light clothing, a hat and real sun protection, a packable rain layer.

July in Guanajuato — reliably good (11th best month)

Good · 7.8/10

July averages 21°C (69°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.

Monthly rainfall reaches 139 mm — wet for this destination — but about 29 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.

It scores 7.8/10 here, 11th of 12 months, against 9.8/10 in the destination's best month.

Figure on low-season pricing, with crowds are moderate.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.

Flexible dates? February scores 2 points higher here — enough to change the trip.

August in Guanajuato — reliably good (12th best month)

Good · 7.6/10

At 20°C (68°F) this is comfortable city weather in August, with sightseeing easiest before lunch and after the afternoon peak.

142 mm of rain makes this a wet month here, though with about 29 days with 6+ hours of sunshine there is still bright weather between the fronts.

That is 7.6/10 on the same scale — 12th of 12 months, versus 9.8/10 for the best month here.

Budget for low-season pricing, and crowds are light for this destination.

Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.

If your dates are flexible, February is materially better in Guanajuato — 2.2 points higher on the same scale.

September in Guanajuato — one of the year's strongest windows (10th)

Best window · 8.6/10

At 19°C (67°F) this is comfortable city weather in September, with sightseeing easiest before lunch and after the afternoon peak.

Budget for roughly 76 mm of rain this month — a flexible day or two helps — with about 26 days with 6+ hours of sunshine and 12.1 hours of daylight to work around it.

On our climate-comfort scale this is one of the strongest months of the year for Guanajuato at 8.6/10 (10th of 12), just behind February at 9.8/10.

Expect mid-season pricing, and crowds are moderate.

Pack light clothing, a hat and real sun protection, a packable rain layer.

October ranks 3rd of 12 for Guanajuato — one of the best windows

Best window · 9.8/10

October averages 18°C (64°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Expect 29 mm of rain — occasional showers rather than washed-out days — alongside about 23 days with 6+ hours of sunshine and 11.5 daylight hours.

A 9.8/10 puts this among the year's best months in Guanajuato (3rd of 12); only February scores higher, at 9.8/10.

Plan for peak pricing, with crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.

Pack layers you can shed by midday plus one warm layer for the evening.

November in Guanajuato — one of the year's strongest windows (5th)

Best window · 9.7/10

November averages 17°C (62°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Expect 15 mm of rain — occasional showers rather than washed-out days — alongside about 21 days with 6+ hours of sunshine and 11 daylight hours.

A 9.7/10 puts this among the year's best months in Guanajuato (5th of 12); only February scores higher, at 9.8/10.

Figure on peak pricing, with this is one of the busiest months here.

Pack layers you can shed by midday plus one warm layer for the evening.

December in Guanajuato — one of the year's strongest windows (7th)

Best window · 9.2/10

Temperatures hover around 14°C (57°F) — the kind of month where neither heat nor cold forces the schedule.

At just 15 mm for the month, rain will not shape your plans; you get about 17 days with 6+ hours of sunshine and 10.7 hours of daylight.

On our climate-comfort scale this is one of the strongest months of the year for Guanajuato at 9.2/10 (7th of 12), just behind February at 9.8/10.

Expect peak pricing, and crowds are moderate.

Pack layers you can shed by midday plus one warm layer for the evening.

FAQ

Frequently asked

When is the best time to visit Guanajuato, Mexico?
In Ideal Weather mode, the best months to visit Guanajuato are February, April, October, March, November, January. February is the single peak month with an Ideal Weather score of 9.8/10 based on temperature, rainfall, humidity, daylight and days with 6+ hours of sunshine.
What is the weather like in Guanajuato year-round?
Guanajuato has a climate profile suited to sightseeing and cultural travel. Average monthly temperatures range from 14°C in December to 24°C in May, with Ideal Weather scores between 7.6 and 9.8 out of 10.
Which months should I avoid in Guanajuato?
The lowest Ideal Weather-scoring months in Guanajuato are August (7.6/10), July (7.8/10), September (8.6/10). These months typically combine less comfortable temperatures, higher rainfall or fewer days with 6+ hours of sunshine.
When is the rainy season in Guanajuato?
August is the wettest month in Guanajuato, averaging about 142 mm of rainfall. January is the driest, at roughly 1 mm.
Which is the sunniest month in Guanajuato?
March sees the most sun in Guanajuato, with about 31 days with 6+ hours of sunshine on average - ideal for outdoor plans.
Is Guanajuato a good destination for sightseeing and cultural travel?
Guanajuato is well suited to sightseeing and cultural travel. Its highest Ideal Weather window (February, April, October, March, November, January) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Guanajuato calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for Guanajuato: temperature comfort, precipitation, humidity, daylight hours, and days with 6+ hours of sunshine - weighted for sightseeing and cultural travel.

Climate data: Open-Meteo ERA5 historical archive, the five most recent complete years (2021–2025). Scores are monthly averages for that window, not forecasts, and short-window precipitation can differ from longer-term normals. “Sunny days” count days with at least 6 hours of measured sunshine — they are not dry days.

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