Porto Alegre, BrazilQuick decision
When to visit Porto Alegre?
🌞 Best time overall
December
🌡️ Optimal temperature
19°C–29°C 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 °C | Max °C | Rainy days (%) | Precip. mm/d | 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
Source: Open-Meteo · 10 years
Seasonal breakdown
What to expect each season
🌸 Spring (Mar–May) — Good time
Average 25°C, 35% rainy days, 9.9h sunshine/day. Score: 7.7/10.
☀️ Summer (Jun–Aug) — Good time
Average 20°C, 32% rainy days, 8.9h sunshine/day. Score: 7.2/10.
🍂 Autumn (Sep–Nov) — Good time
Average 24°C, 39% rainy days, 10.8h sunshine/day. Score: 7.6/10.
❄️ Winter (Dec–Feb) — Good time
Average 30°C, 37% rainy days, 12.7h sunshine/day. Score: 8.0/10.
Accommodation
Find a place to stay in Porto Alegre
Check availability during the recommended period
Tip : off-peak months (June, July) are cheapest but weather is significantly worse.
Search on Hotels.comActivities & tours
Activities and tours in Porto Alegre
Guided tours, skip-the-line tickets and local experiences.
Browse activities on GetYourGuide
Flights
Find a flight to Porto Alegre
Compare flights from all airlines.
Search flights
Monthly weather
Detailed weather by month
FAQ
Frequently asked questions
December is ideal with 34% rainy days and 29°C.
June is the wettest month with 33% rainy days.
Yes, December is the best month with an average of 29°C.
In winter, the average score is 8.0/10. Acceptable conditions for cultural visits.
Also explore
Destinations with similar climate
UruguayWeather rankings
Compare destinations by weather
Best in EuropeGuides & comparisons