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Porto Alegre, Brazil · Temperate

Porto Alegre: best months to visit

December (8.5/10) · February (5.5/10).

📅 Data updated: October 2026 🛰️ ERA5 · 10 years 📍 30.03°S · 51.22°W
⚡ Quick answer
December
Depends on your goals
8.5/10
☀️ Dec
Top score (8.5/10)
🌤️ Mar
Alt. (8.4/10)
Feb
Plus rude (5.5/10)
🏛️ Heritage🌦️ Moderate rain
Photo par Henry Rodrigues via Unsplash
Decide

When to visit Porto Alegre?

The decision rests on several criteria. Climate score, tourist crowds and feasible activities.

Verdict: In Porto Alegre, December and March clearly stand out. February concentrates the least favorable conditions.
Top & avoid
🏆 December · 8.5 March · 8.4 November · 8.3 April · 7.9 ⚠️ February · 5.5
5.7
Jan
5.5
Feb
8.4
Mar
7.9
Apr
7.5
May
7.3
Jun
7.3
Jul
7.5
Aug
7.6
Sep
7.8
Oct
8.3
Nov
8.5
Dec
Best period · ≥ 7 Decent period · 4 – 7 Tough conditions · < 4

What you grasp in 5 seconds

Porto Alegre offers 10 comfortable months, without any month really to avoid. The gap stays moderate: 8.5 in December vs 5.5 in February.

What to check next

Your tolerance for crowds and budget. The best months concentrate tourist saturation and higher prices. Shoulder seasons offer a good compromise.

Next action

Scroll down to the detailed table to compare month by month, then open the page of the month that interests you.

How we calculate the score

The score combines 4 weighted criteria using 10 years of real climate data (ERA5).

Source : ERA5 · Open-Meteo · 10 years (2016–2025) · Full methodology →

Understand

Compare all 12 months

Month-by-month details: temperature, rain, sunshine, score and verdict.

✅ 10 comfortable months (Mar · Apr · May · Jun · Jul · Aug · Sep · Oct · Nov · Dec)
MonthT° minT° maxRain %mm/daySunScoreVerdict
🌥️ January →70°F86°F29%3.2mm7.7h5.7/10Decent period
🌥️ February →70°F86°F32%3.0mm7.3h5.5/10Decent period
☀️ March →68°F82°F28%3.9mm6.7h8.4/10Best period
☀️ April →64°F77°F28%3.3mm5.6h7.9/10Best period
☀️ May →55°F70°F26%5.6mm4.6h7.5/10Best period
⛅ June →52°F66°F29%4.8mm4.0h7.3/10Best period
⛅ July →50°F66°F30%4.0mm4.3h7.3/10Best period
☀️ August →52°F70°F29%3.3mm4.8h7.5/10Best period
☀️ September →57°F72°F32%5.8mm5.0h7.6/10Best period
☀️ October →59°F75°F32%4.5mm5.7h7.8/10Best period
☀️ November →63°F79°F26%4.0mm7.5h8.3/10Best period
☀️ December →66°F84°F28%3.1mm7.7h8.5/10Best period
📊 Quick read
Optimal window
Mar → Dec
Good transition
Jan · Feb
Tough period
none
🌡️ Detailed conditions (December)
🌡️ Feel
Warm
☀️ UV
8.5 · Very strong
💧 Humidity feel
65°F · Humid
☔ Rain
28% · 3.1 mm/day
🌅 Sunshine
7.7h/day
10-year trend

Annual temperatures — Porto Alegre

Min/max temperature curves observed over the past 10 years (ERA5). Shows climate stability and trend.

T° maxT° meanT° min57°61°64°68°72°75°79°201620172018201920202021202220232024202578°F — decade peak (2023)+0.99°F / decade
Tailor

For your trip

A few angles depending on what kind of trip you are planning.

🏛️ Heritage🍴 Gastronomy☔ Indoor sights
Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

🎟️ Activities & tours · Porto Alegre

GetYourGuide selection · free cancellation

See all →
Affiliate link · GetYourGuide
Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a city break.

Country · Brazil

🗣️LanguagePortuguese
💶CurrencyBrazilian Real (R$)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘCheap · 2/5

🌡️ Climate

🌍Climate typeTemperate
📈Climate trend ⓘStable
🔥Hottest monthJanuary · 86°F
❄️Coolest monthJune · 66°F
🌧️Rainiest month ⓘFebruary · 32%

🏛️ City break

📅Tourist peak seasonJune → August
☔Indoor sights ⓘYear-round
🚇Public transportGood
Explore

Related destinations & guides

If this destination doesn't fit your dates, here are alternatives and guides.

Location

Where is Porto Alegre ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Temperate climate with a 8.5 → 5.5 gap between best and worst month. 10 years of ERA5 data to choose by project.
30.03°S · 51.22°W
Questions

Frequently asked questions

What is the best time to visit Porto Alegre?
March is the best month with 82°F highs, 68°F lows, 6.7h of sunshine and 28.0% rainy days. The months of March & December offer comparable conditions.
How many hours of sunshine does Porto Alegre get in March?
Porto Alegre averages 6.7 sunshine hours per day in March. It is the sunniest month with a climate score of 7.9/10.
What is the rainiest month in Porto Alegre?
February is the most unfavourable month with February has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Porto Alegre in March?
In March, overnight lows reach 68°F, while afternoon highs average 82°F.
Is Porto Alegre good in winter?
In winter (December-February), Porto Alegre scores 6.2/10 on average — Acceptable conditions for cultural visits.. The best month overall remains March with a score of 7.9/10.
When should you avoid Porto Alegre?
February is the most difficult month to visit Porto Alegre, with February has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.