San Miguel de Allende · Month comparison
December vs October
October ranks #1 overall vs December at #9. Rainy season fading, Day of the Dead approaching — arguably SMA's single best month.
December
#9 of 12 months
Strong option
Posadas lantern processions, Christmas lights on the Parroquia, and the busiest — and most atmospheric — month.
- ↑Las Posadas (Dec 16–24) processions with candles and paper lanterns through the centro are extraordinary
- ↑Christmas and New Year are SMA's peak season with reason: the setting is genuinely magical
October
#1 of 12 months
Best match
Rainy season fading, Day of the Dead approaching — arguably SMA's single best month.
- ↑Rain retreats to occasional showers; mornings and afternoons consistently clear and warm
- ↑Day of the Dead preparations begin mid-October — marigolds, sugar skulls, and altars appear across the city
| Factor | December | October |
|---|---|---|
| Weather score | 7 | 8 |
| Value score | 5 | 6 |
| Crowd score | 4 | 6 |
| Events score | 8 | 9 |
| Atmosphere | 9 | 9 |
| Avg high temp | 22°C | 24°C |
| Monthly rain | 8mm | 45mm |
| Daily sunshine | 8.5hrs | 8.5hrs |
December trade-offs
- ↓Peak pricing: December is the most expensive month, with some boutique hotels at full capacity from Dec 20
- ↓Nights drop to 3–5°C; cold enough that the unheated interiors of historic properties feel chilly
- ↓Centro extremely crowded mid-December through New Year — reserve all restaurants in advance
October trade-offs
- ↓Day of the Dead weekend (Nov 1–2) creates a surge in advance — book October stays early
- ↓Temperatures dropping at night: 11°C evenings require a jacket after sundown
Scores compare months within San Miguel de Allende. Climate data: Open Meteo ERA5 30-year normals (1991–2020). Methodology →