Porto Alegre in January
In January, Porto Alegre averages 31°C (87°F) during the day and 21°C (71°F) at night, with frequent rain — about 21 days of the month see precipitation (116 mm total).
High seasonConditions are warm and beach-friendly. Expect daily rain or showers, often in heavy bursts.
January is one of the wetter and less comfortable months in Porto Alegre. If your dates are flexible, consider a different time of year.
How January compares to the rest of the year in Porto Alegre
January is one of the warmest months in Porto Alegre (1st of 12) and one of the wettest months (1st of 12). Daytime temperature runs 6°C above the annual average (25°C). January runs 1°C warmer than December (29°C) and cools 1°C in February (30°C).
January sunrise & sunset in Porto Alegre
Times shown for Porto Alegre local time (America/Sao_Paulo), calculated for the 15th of January. They shift by a few minutes day to day across the month.
Photography light in Porto Alegre — January
Golden-hour and blue-hour windows for the 15th of January, in Porto Alegre's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Porto Alegre in January
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 January's tier (High season) and Porto Alegre's popularity.
Crowds & pricing — January in Porto Alegre
This is a busy month in Porto Alegre — not the absolute peak, but tourist numbers are clearly elevated. You'll feel it at headline attractions on weekends and in the historic centre, though side streets and lesser-known sights stay manageable. Prices are above off-season but not at their summit. A good week for first-time visitors who want everything open without the worst of the crush.
Why this tier: Southern Hemisphere summer holidays
Sun & mosquito risk — January 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 January weather
🌍 See the full ranked list of climate twins for Porto Alegre in January →
Frequently asked questions
How hot is Porto Alegre in January?
In January, Porto Alegre averages a high of 31°C (87°F) and a low of 21°C (71°F) — generally hot.
Does it rain a lot in Porto Alegre in January?
January is quite rainy in Porto Alegre, with about 21 rainy days on average.
Is January a good time to visit Porto Alegre?
January is hot but on the rainy side. It suits travelers who are comfortable with hot weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Porto Alegre in January?
Pack lightweight, breathable clothing, sunglasses and sunscreen, plus a compact umbrella or rain jacket. See the full January packing list for Porto Alegre for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.