Chile · AutumnMonth summary
Chile weather in September
⚠️ Fair
🌡️ Temperature min / max
-2°C – 8°C
🌧 Rainy days
31% of days
☀️ Sunshine
11.0h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
5.0/10
📅 📅 Best month
January (8.0/10)
Quick decision
Should you visit Chile in September?
⚠️ Fair
✅ Yes if: you want the lowest prices and minimal crowds.
❌ No if: you're looking for summer weather — conditions don't support it.
Our take: Not the best window: 31% rain risk and 11.0h of sunshine. January is much safer.
By trip type
Chile in September by trip type
- 🏙️ 🏙️ City break / culture : ⚠️ Possible
- 🚶 🚶 Outdoor activities : ❌ Not recommended
- 🏖️ Beach / swimming : ❌ Not recommended
- 💰 💰 Budget : ✅ Low season
Local context
What to expect in September
🎯 Acceptable period — 8°C but 31% rain risk. Plan alternatives Autumn marks the end of peak season in Chile. Temperatures drop (8°C) and rain returns (31% of days). Expect rain on 31% of days — a light raincoat in the bag is recommended.
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Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌤️ January | 7°C | 19°C | 11% | 0.7 | 13.9h | 8.0/10 |
| 🌤️ February | 7°C | 19°C | 7% | 0.4 | 13.0h | 8.0/10 |
| ⛅ March | 5°C | 17°C | 6% | 0.4 | 11.9h | 7.5/10 |
| ⛅ April | 2°C | 13°C | 20% | 3.7 | 10.7h | 7.0/10 |
| 🌫️ May | -1°C | 9°C | 32% | 3.9 | 9.2h | 4.7/10 |
| 🌦️ June | -4°C | 6°C | 38% | 9.0 | 7.8h | 4.0/10 |
| 🌫️ July | -5°C | 6°C | 32% | 5.0 | 9.2h | 4.2/10 |
| 🌦️ August | -4°C | 6°C | 35% | 6.5 | 10.0h | 4.2/10 |
| 🌫️ September | -2°C | 8°C | 31% | 4.4 | 11.0h | 5.0/10 |
| 🌫️ October | -1°C | 11°C | 29% | 2.7 | 12.4h | 6.8/10 |
| ⛅ November | 2°C | 14°C | 18% | 1.6 | 13.1h | 7.1/10 |
| 🌤️ December | 5°C | 18°C | 8% | 0.5 | 14.1h | 7.9/10 |
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, Chile averages 8°C, 31% rainy days and 11.0h of sunshine per day. Overall weather score: 5.0/10.
See methodology →
Comparison
September vs January (best month)
The best month is January (score 8.0/10). Difference:
- 🌡️ Max temperature : +11°C
- 🌧 Rainy days : -20%
- ☀️ Sunshine : +2.9h/day
FAQ
FAQ — Chile in September
Is September a good time to visit Chile?
September is not recommended for Chile (score 5.0/10). With 31% rainy days and 11.0h of sunshine, consider January (8.0/10) instead.
What's the weather like in Chile in September?
It's cool with 8°C daytime and -2°C at night. 11.0h of sunshine per day. Pack warm clothes and favour indoor visits.
Accommodation
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