Porto Alegre, BrazilQuick decision
When to visit Porto Alegre?
🌞 Best time overall
December
🌡️ Optimal temperature
66°F–84°F in December
🌧 Least rain
34% rainy days in December
🌧 Wettest month
June (33%)
📅 Best score
8.2/10
Monthly climate data
Porto Alegre weather month by month
| Month | Min °F | Max °F | Rainy days (%) | Precip. in/d | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌤️ January | 70°F | 86°F | 41% | 0.1in | 12.6h | 7.8/10 |
| 🌤️ February | 70°F | 86°F | 37% | 0.1in | 12.6h | 7.9/10 |
| 🌤️ March | 68°F | 82°F | 37% | 0.2in | 11.0h | 8.1/10 |
| 🌤️ April | 64°F | 77°F | 31% | 0.1in | 10.3h | 7.8/10 |
| ⛅ May | 55°F | 70°F | 38% | 0.2in | 8.5h | 7.2/10 |
| 🌤️ June | 52°F | 66°F | 33% | 0.2in | 8.1h | 7.1/10 |
| 🌤️ July | 50°F | 66°F | 30% | 0.2in | 8.8h | 7.1/10 |
| 🌤️ August | 52°F | 70°F | 32% | 0.1in | 9.7h | 7.3/10 |
| 🌤️ September | 57°F | 72°F | 39% | 0.2in | 9.1h | 7.3/10 |
| 🌤️ October | 59°F | 75°F | 41% | 0.2in | 10.6h | 7.5/10 |
| 🌤️ November | 63°F | 79°F | 38% | 0.2in | 12.6h | 8.0/10 |
| 🌤️ December | 66°F | 84°F | 34% | 0.1in | 13.0h | 8.2/10 |
Ideal
Fair
Challenging climate
Source: Open-Meteo · 10 years
Seasonal breakdown
What to expect each season
🌸 Spring (Mar–May) — Good time
Average 25°F, 35% rainy days, 9.9h sunshine/day. Score: 7.7/10.
☀️ Summer (Jun–Aug) — Good time
Average 20°F, 32% rainy days, 8.9h sunshine/day. Score: 7.2/10.
🍂 Autumn (Sep–Nov) — Good time
Average 24°F, 39% rainy days, 10.8h sunshine/day. Score: 7.6/10.
❄️ Winter (Dec–Feb) — Good time
Average 30°F, 37% rainy days, 12.7h sunshine/day. Score: 8.0/10.
Accommodation
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Tip : off-peak months (June, July) are cheapest but weather is significantly worse.
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Activities and tours in Porto Alegre
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Flights
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Monthly weather
Detailed weather by month
FAQ
Frequently asked questions
December is ideal with 34% rainy days and 29°F.
June is the wettest month with 33% rainy days.
Yes, December is the best month with an average of 29°F.
In winter, the average score is 8.0/10. Acceptable conditions for cultural visits.
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