Porto Alegre · AutumnMonth summary
Porto Alegre weather in October
✅ Good
🌡️ Temperature min / max
15°C – 24°C
🌧 Rainy days
41% of days
☀️ Sunshine
10.6h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.5/10
📅 📅 Best month
December (8.2/10)
Quick decision
Should you visit Porto Alegre in October?
✅ Good
✅ Yes if: you want shoulder-season value — fewer crowds, 24°C.
❌ No if: you need maximum sunshine — some overcast days are possible.
Our take: Porto Alegre in October: 24°C and 10.6h of sunshine. Decent, but not the peak.
By trip type
Porto Alegre in October by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : — No sea access
- 💰 💰 Budget : 🌿 Shoulder
Local context
What to expect in October
Autumn in Porto Alegre is often underrated: 24°C, golden light and declining crowds. An interesting window. Expect rain on 41% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if December (8.2/10) remains theoretically better.
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All months for Porto Alegre
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌤️ January | 21°C | 30°C | 41% | 3.2 | 12.6h | 7.8/10 |
| 🌤️ February | 21°C | 30°C | 37% | 3.0 | 12.6h | 7.9/10 |
| 🌤️ March | 20°C | 28°C | 37% | 3.9 | 11.0h | 8.1/10 |
| 🌤️ April | 18°C | 25°C | 31% | 3.3 | 10.3h | 7.8/10 |
| ⛅ May | 13°C | 21°C | 38% | 5.6 | 8.5h | 7.2/10 |
| 🌤️ June | 11°C | 19°C | 33% | 4.8 | 8.1h | 7.1/10 |
| 🌤️ July | 10°C | 19°C | 30% | 4.0 | 8.8h | 7.1/10 |
| 🌤️ August | 11°C | 21°C | 32% | 3.3 | 9.7h | 7.3/10 |
| 🌤️ September | 14°C | 22°C | 39% | 5.8 | 9.1h | 7.3/10 |
| 🌤️ October | 15°C | 24°C | 41% | 4.5 | 10.6h | 7.5/10 |
| 🌤️ November | 17°C | 26°C | 38% | 4.0 | 12.6h | 8.0/10 |
| 🌤️ December | 19°C | 29°C | 34% | 3.1 | 13.0h | 8.2/10 |
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 October, Porto Alegre averages 24°C, 41% rainy days and 10.6h of sunshine per day. Overall weather score: 7.5/10.
See methodology →
Comparison
October vs December (best month)
The best month is December (score 8.2/10). Difference:
- 🌡️ Max temperature : +5°C
- 🌧 Rainy days : -7%
- ☀️ Sunshine : +2.4h/day
FAQ
FAQ — Porto Alegre in October
Is October a good time to visit Porto Alegre?
October is an excellent time to visit Porto Alegre (score 7.5/10). With 24°C, 10.6h of sunshine and 41% rain, conditions are very favourable.
What to do in Porto Alegre in October?
With 24°C max and 10.6h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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