Porto Alegre in March
In March, Porto Alegre averages 28°C (82°F) during the day and 20°C (67°F) at night, with frequent rain — about 20 days of the month see precipitation (125 mm total).
ShoulderConditions are warm and beach-friendly. Expect daily rain or showers, often in heavy bursts.
March offers comfortable temperatures in Porto Alegre, with some rain to plan around.
How March compares to the rest of the year in Porto Alegre
March is in the middle of the year for warmth in Porto Alegre (4th of 12) and one of the wettest months (2nd of 12). Daytime temperature runs 3°C above the annual average (25°C). March runs 2°C cooler than February (30°C) and cools 2°C in April (25°C).
March sunrise & sunset in Porto Alegre
Times shown for Porto Alegre local time (America/Sao_Paulo), calculated for the 15th of March. They shift by a few minutes day to day across the month.
Photography light in Porto Alegre — March
Golden-hour and blue-hour windows for the 15th of March, in Porto Alegre's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Porto Alegre in March
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on March's tier (Shoulder) and Porto Alegre's popularity.
March in Brazil — events that affect travel
Known cultural, religious, or national events that surge prices, fill hotels, or close businesses during this month. Plan around them, or build your itinerary around the ones you'd like to see.
The biggest party on earth — 5 days of all-night samba, blocos, and the Sambadrome. Rio hotels triple in price and book out 6 months ahead. Salvador and Recife host smaller versions.
Plan: Plan accommodation 6+ months ahead. The Sambadrome parades need separate tickets. Bring comfortable shoes.
Crowds & pricing — March in Porto Alegre
Porto Alegre is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Sun & mosquito risk — March in Porto Alegre
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Porto Alegre in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 31°C / 87°F | 21°C / 71°F | 116 mm | 21 | — |
| February | 30°C / 86°F | 21°C / 69°F | 89 mm | 18 | — |
| March | 28°C / 82°F | 20°C / 67°F | 125 mm | 20 | — |
| April | 25°C / 78°F | 17°C / 63°F | 75 mm | 16 | — |
| May | 21°C / 70°F | 13°C / 56°F | 150 mm | 15 | — |
| June | 19°C / 66°F | 11°C / 52°F | 145 mm | 13 | — |
| July | 20°C / 67°F | 11°C / 51°F | 136 mm | 13 | — |
| August | 21°C / 70°F | 12°C / 53°F | 104 mm | 13 | — |
| September | 22°C / 72°F | 14°C / 57°F | 170 mm | 17 | — |
| October | 24°C / 75°F | 16°C / 60°F | 155 mm | 19 | — |
| November | 26°C / 80°F | 17°C / 62°F | 126 mm | 16 | — |
| December | 29°C / 85°F | 20°C / 67°F | 113 mm | 17 | — |
Other cities with similar March weather
🌍 See the full ranked list of climate twins for Porto Alegre in March →
Frequently asked questions
How hot is Porto Alegre in March?
In March, Porto Alegre averages a high of 28°C (82°F) and a low of 20°C (67°F) — generally warm.
Does it rain a lot in Porto Alegre in March?
March is quite rainy in Porto Alegre, with about 20 rainy days on average.
Is March a good time to visit Porto Alegre?
March is warm but on the rainy side. It suits travelers who are comfortable with warm weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Porto Alegre in March?
Pack lightweight, breathable clothing, sunglasses and sunscreen, plus a compact umbrella or rain jacket. See the full March packing list for Porto Alegre for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.