San Miguel de Allende weather changes most through rainfall and the day-to-night temperature swing, not through extreme seasonal heat or cold. The table below gives a single month-by-month reference for average highs, lows and rainfall so you can plan clothing and outdoor activities without bouncing between duplicate weather pages.
- Driest stretch: November through April.
- Wettest month: July.
- Warmest average daytime high: May.
- Coolest average nights: December and January.
San Miguel de Allende weather by month
| Month | Avg. high | Avg. low | Avg. rainfall | Planning note |
|---|---|---|---|---|
| January | 72°F / 22°C | 42°F / 6°C | 0.4 in / 10 mm | Dry, sunny and cool at night. |
| February | 75°F / 24°C | 44°F / 7°C | 0.3 in / 8 mm | Dry with comfortable afternoons. |
| March | 79°F / 26°C | 48°F / 9°C | 0.2 in / 5 mm | Very dry and increasingly warm. |
| April | 83°F / 28°C | 52°F / 11°C | 0.3 in / 8 mm | Warm afternoons, still generally dry. |
| May | 84°F / 29°C | 56°F / 13°C | 0.9 in / 23 mm | Warmest afternoons; rain risk begins rising. |
| June | 81°F / 27°C | 58°F / 14°C | 3.1 in / 79 mm | Rainy season becomes established. |
| July | 78°F / 26°C | 57°F / 14°C | 4.2 in / 107 mm | Wettest month; plan around afternoon storms. |
| August | 78°F / 26°C | 57°F / 14°C | 3.6 in / 91 mm | Green and wet; flexible scheduling helps. |
| September | 77°F / 25°C | 56°F / 13°C | 3.1 in / 79 mm | Still rainy, with lush scenery. |
| October | 76°F / 24°C | 51°F / 11°C | 1.1 in / 28 mm | Transition toward drier weather. |
| November | 75°F / 24°C | 46°F / 8°C | 0.3 in / 8 mm | Dry season returns; cool evenings. |
| December | 72°F / 22°C | 42°F / 6°C | 0.1 in / 3 mm | Driest month; pack for cool nights. |
Data note: these are long-term planning averages derived from WeatherSpark’s climate data for San Miguel de Allende. They describe typical conditions, not a forecast for a particular travel date.
How to use the monthly averages
Choose the month by the trade-off you care about, then check the short-term forecast before travel. The dry months simplify walking-heavy itineraries. The wetter summer months reward flexible planning and bring greener scenery. The warmest months are not necessarily the wettest, and winter afternoons can still be mild despite cool nights.
For the wider annual pattern, see the San Miguel de Allende climate guide. For a date-choice decision that also considers travel priorities, use the best time to visit guide.
November through April: the dry-season pattern
Rainfall is low from November through April, but the nights are much cooler than the afternoons. Travelers often need sun protection during the day and another layer after sunset. December and January have the coolest average lows, while March and April warm quickly in the afternoon.
June through September: the wet-season pattern
June marks a sharp increase in rainfall, with July typically the wettest month. Summer rain does not mean constant rain all day, but it makes tightly scheduled outdoor plans less reliable. Put walking-heavy activities earlier, leave some flexibility later, and carry a compact rain layer.
Packing rules that work across the year
- Winter: daytime layers plus a jacket for early mornings and evenings.
- Spring: light clothing, sun protection and one cooler-night layer.
- Rainy season: breathable clothing, compact rain protection and quick-drying footwear.
- Autumn transition: combine light rain protection with a warmer evening layer.
For a full checklist, use the packing essentials guide.
Monthly weather FAQ
Which month is driest?
December has the lowest average rainfall in the long-term dataset used here.
Which month is rainiest?
July has the highest average rainfall and the greatest average number of wet days.
Which month is hottest?
May has the highest average daytime high.
Which months have the coolest nights?
December and January have the lowest average nighttime temperatures.
Should weather alone decide when I travel?
No. If your main question is when to book a trip, use the best-time-to-visit guide, which treats weather as one decision factor rather than the entire decision.
Sophie Valdez is a passionate author and cultural enthusiast based in San Miguel de Allende. With a keen eye for detail and a love for storytelling, she writes compelling pieces that explore the rich history, vibrant culture, and hidden gems of this enchanting city. Through her engaging narratives, Sophie invites readers to discover the unique charm of San Miguel de Allende, making her work a go-to resource for both visitors and locals alike.
Your insights about the climate in San Miguel de Allende resonate deeply, as understanding the local weather can indeed shape our travel experiences in significant ways. I had the opportunity to visit this enchanting city last April, and I can vouch for the magic of that timing. The weather was mild, perfect for exploring the charming cobblestone streets, and I found the atmosphere invigorating during the Festival of San Miguel, which drew locals and tourists alike to celebrate with music, food, and laughter.
Ah, San Miguel de Allende, a place where you can experience all four seasons… in a single day! It really sounds like Mother Nature is trying to keep us on our toes. I remember one particularly adventurous trip in July where I packed my sun hat, umbrella, and hiking boots, only to find myself soaked from head to toe one minute, and then basking in glorious sunshine two hours later. It turned into an impromptu water park, courtesy of those summer showers!
I really appreciate this breakdown of the weather in San Miguel de Allende! It’s so true that climate can drastically change a travel experience, and knowing what to expect can ultimately make or break a trip. I remember visiting a few years back in late spring, right before the rainy season kicked in. While the lush greenery that came with the rains was stunning, I did find the unexpected humidity quite a challenge. It made walking around in the afternoons a bit more cumbersome than I had anticipated.
I really appreciate this insightful breakdown of San Miguel de Allende’s climate! Having traveled there in early March last year, I can confirm that the weather was just perfect for exploring the city’s beautiful architecture and vibrant streets. The comfortable daytime temperatures made it easy to wander around, while the evenings were just cool enough to enjoy a cozy dinner outdoors.
Your insights on the climate in San Miguel de Allende really resonate with me! I remember visiting in January a few years back and was pleasantly surprised by the comfortable temperatures and clear skies. It felt like the perfect backdrop for exploring the city’s cobbled streets and vibrant art scene.
It’s great to hear that your visit in January left such a positive impression. The weather really does strike that perfect balance, doesn’t it? I find that the clear skies not only enhance the beauty of the architecture but also create an inviting atmosphere for wandering through the art studios and galleries.