Montevideo · AutumnMonth summary
Montevideo weather in September
✅ Good
🌡️ Temperature min / max
11°C – 16°C
🌧 Rainy days
26% of days
☀️ Sunshine
10.5h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.1/10
📅 📅 Best month
January (8.7/10)
Quick decision
Should you visit Montevideo in September?
✅ Good
✅ Yes if: you want to explore the city on foot without suffering from heat.
❌ No if: you're looking for a beach destination — water and air are still cool.
Our take: September is a good time to visit Montevideo. January remains slightly better (+1.6 pts).
By trip type
Montevideo in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ⚠️ Possible
- 🏖️ Beach / swimming : ❌ Not recommended
- 💰 💰 Budget : ✅ Low season
Local context
What to expect in September
🎯 Shoulder season — good value with reasonable accommodation prices Autumn in Montevideo is often underrated: 16°C, golden light and declining crowds. An interesting window. Expect rain on 26% of days — a light raincoat in the bag is recommended. Not the best window, but acceptable if dates are constrained. January (8.7/10) is significantly better if possible.
Browse by month
All months for Montevideo
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌤️ January | 20°C | 26°C | 27% | 2.1 | 13.8h | 8.7/10 |
| 🌤️ February | 20°C | 26°C | 32% | 3.0 | 12.2h | 8.3/10 |
| 🌤️ March | 18°C | 24°C | 36% | 2.9 | 11.7h | 7.9/10 |
| 🌤️ April | 16°C | 21°C | 33% | 3.7 | 10.2h | 7.4/10 |
| ⛅ May | 12°C | 17°C | 24% | 2.6 | 8.8h | 7.1/10 |
| ⛅ June | 9°C | 14°C | 27% | 2.3 | 8.5h | 6.3/10 |
| ⛅ July | 9°C | 13°C | 29% | 3.2 | 8.8h | 5.9/10 |
| ⛅ August | 9°C | 15°C | 25% | 2.6 | 9.8h | 7.0/10 |
| ⛅ September | 11°C | 16°C | 26% | 2.2 | 10.5h | 7.1/10 |
| 🌤️ October | 13°C | 18°C | 32% | 2.8 | 12.1h | 7.2/10 |
| 🌤️ November | 16°C | 22°C | 26% | 2.5 | 13.0h | 8.1/10 |
| 🌤️ December | 18°C | 25°C | 26% | 2.2 | 13.8h | 8.6/10 |
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, Montevideo averages 16°C, 26% rainy days and 10.5h of sunshine per day. Overall weather score: 7.1/10.
See methodology →
Comparison
September vs January (best month)
The best month is January (score 8.7/10). Difference:
- 🌡️ Max temperature : +10°C
- 🌧 Rainy days : +1%
- ☀️ Sunshine : +3.3h/day
FAQ
FAQ — Montevideo in September
Is September a good time to visit Montevideo?
September is an acceptable time for Montevideo (score 7.1/10). Conditions are decent but not optimal — consider January (8.7/10) if possible.
What to do in Montevideo in September?
With 16°C max and 10.5h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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Activities & tours
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