Mexico City · AutumnMonth summary
Mexico City weather in September
✅ Good
🌡️ Temperature min / max
55°F – 72°F
🌧 Rainy days
81% of days
☀️ Sunshine
10.3h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.0/10
📅 📅 Best month
March (9.0/10)
Quick decision
Should you visit Mexico City in September?
✅ Good
✅ Yes if: you're willing to accept showers in exchange for lower prices and fewer tourists.
❌ No if: you're planning 100% outdoor activities — rain is frequent.
Our take: Favourable conditions in September (7.0/10). March scores higher but the gap is small.
By trip type
Mexico City in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ⚠️ Possible
- 🏖️ Beach / swimming : — No sea access
- 💰 💰 Budget : ✅ Low season
Local context
What to expect in September
Autumn in Mexico City is often underrated: 22°F, golden light and declining crowds. An interesting window. With 81% of rainy days, always have indoor alternatives planned. Not the best window, but acceptable if dates are constrained. March (9.0/10) is significantly better if possible.
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Annual table
Month-by-month comparison
| Month | Min °F | Max °F | Rain % | Precip in | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌤️ January | 45°F | 72°F | 7% | 0.0in | 10.7h | 8.3/10 |
| ☀️ February | 48°F | 77°F | 7% | 0.0in | 11.2h | 8.8/10 |
| ☀️ March | 52°F | 81°F | 15% | 0.0in | 11.7h | 9.0/10 |
| ☀️ April | 54°F | 82°F | 23% | 0.0in | 12.1h | 8.9/10 |
| 🌤️ May | 55°F | 82°F | 40% | 0.1in | 12.4h | 8.4/10 |
| 🌧️ June | 57°F | 75°F | 67% | 0.2in | 11.9h | 7.2/10 |
| 🌧️ July | 55°F | 73°F | 86% | 0.3in | 11.4h | 7.0/10 |
| 🌧️ August | 55°F | 73°F | 88% | 0.3in | 11.1h | 7.0/10 |
| 🌧️ September | 55°F | 72°F | 81% | 0.3in | 10.3h | 7.0/10 |
| 🌤️ October | 54°F | 72°F | 45% | 0.1in | 10.7h | 7.4/10 |
| 🌤️ November | 50°F | 73°F | 15% | 0.0in | 10.9h | 8.3/10 |
| 🌤️ December | 46°F | 72°F | 8% | 0.0in | 10.8h | 8.3/10 |
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, Mexico City averages 72°F, 81% rainy days and 10.3h of sunshine per day. Overall weather score: 7.0/10.
See methodology →
Comparison
September vs March (best month)
The best month is March (score 9.0/10). Difference:
- 🌡️ Max temperature : +5°F
- 🌧 Rainy days : -66%
- ☀️ Sunshine : +1.4h/day
FAQ
FAQ — Mexico City in September
Is September a good time to visit Mexico City?
September is an acceptable time for Mexico City (score 7.0/10). Conditions are decent but not optimal — consider March (9.0/10) if possible.
Does it rain a lot in Mexico City in September?
Yes, 81% of days see rain in September. Plan some indoor activities as backup.
Accommodation
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