San Cristóbal de las Casas in September: weather, rain (89%) and should you go? [2026]

Month summary

San Cristóbal de las Casas weather in September

⚠️ Fair

🌡️ Temperature min / max

12°C – 19°C

🌧 Rainy days

89% of days

☀️ Sunshine

9.8h per day on average

🌊 🌊 Season

Autumn

⭐ ⭐ Weather score

4.5/10

📅 📅 Best month

March (7.9/10)

Quick decision

Should you visit San Cristóbal de las Casas in September?

⚠️ Fair

✅ Yes if: you prefer off-season travel with reduced prices and very few tourists.

❌ No if: you want to avoid rain — more than half the days are rainy.

🌧 Rain : █████████░ 89%

🌡 Temperature : █████░░░░░ 19°C

☀️ Sunshine : ███████░░░ 9.8h/d

Our take: September is a difficult time for San Cristóbal de las Casas. March (7.9/10) is much more favourable.

By trip type

San Cristóbal de las Casas in September by trip type

🏙️ 🏙️ City break / culture : ⚠️ Possible
🚶 🚶 Outdoor activities : ❌ Not recommended
🏖️ Beach / swimming : — No sea access
💰 💰 Budget : ✅ Low season

Local context

What to expect in September

🎯 Tourist low season — museums and monuments without queues Autumn marks the end of peak season in San Cristóbal de las Casas. Temperatures drop (19°C) and rain returns (89% of days). With 89% of rainy days, always have indoor alternatives planned.

Browse by month

All months for San Cristóbal de las Casas

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Annual table

Month-by-month comparison

Month	Min °C	Max °C	Rain %	Precip mm	Sun h/d	Score
🌤️ January	9°C	19°C	21%	0.8	10.8h	7.5/10
🌤️ February	10°C	20°C	21%	0.8	11.0h	7.7/10
🌤️ March	11°C	22°C	31%	1.1	11.5h	7.9/10
🌤️ April	11°C	22°C	47%	2.4	12.0h	7.5/10
🌧️ May	12°C	22°C	74%	6.9	12.0h	7.1/10
🌧️ June	13°C	19°C	89%	14.2	9.9h	4.4/10
🌧️ July	12°C	20°C	72%	7.5	11.7h	7.0/10
🌧️ August	12°C	20°C	81%	11.6	11.0h	5.9/10
🌧️ September	12°C	19°C	89%	13.7	9.8h	4.5/10
🌧️ October	12°C	19°C	73%	7.2	10.5h	6.0/10
🌦️ November	11°C	19°C	49%	2.8	10.8h	7.1/10
🌤️ December	10°C	18°C	27%	1.0	10.7h	7.3/10

Ideal Fair Challenging climate ◀ Current month · Source Open-Meteo · 10 years

📊 Data source Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In September, San Cristóbal de las Casas averages 19°C, 89% rainy days and 9.8h of sunshine per day. Overall weather score: 4.5/10. See methodology →

Comparison

September vs March (best month)

The best month is March (score 7.9/10). Difference:

🌡️ Max temperature : +3°C
🌧 Rainy days : -58%
☀️ Sunshine : +1.7h/day

FAQ

FAQ — San Cristóbal de las Casas in September

Is September a good time to visit San Cristóbal de las Casas?

September is not recommended for San Cristóbal de las Casas (score 4.5/10). With 89% rainy days and 9.8h of sunshine, consider March (7.9/10) instead.

Does it rain a lot in San Cristóbal de las Casas in September?

Yes, 89% of days see rain in September. Plan some indoor activities as backup.

Accommodation