Weathermondo.comPorto Alegre climate and temperatures
The climate of Porto Alegre is Temperate oceanic climate (Köppen: Cfa), with warm summers and precipitation throughout the year. Monthly temperatures range from a minimum of 20°C in winter (June–August) to a maximum of 32°C in summer (December–February). The average annual temperature is around 26°C.
During the winter months, nighttime temperatures can drop to an average of 11°C, while summer nights average around 21°C.
Climate table of Porto Alegre
The climate table below gives you a clear overview of the climate in Porto Alegre by month, from average temperatures and rainfall to UV levels. This makes it easy to see when the weather best suits your travel plans.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 14 | 16 | 17 | 19 | 23 | 27 | 30 | 30 | 27 | 23 | 18 | 16 |
| Temp. min (°C) | 6 | 7 | 9 | 11 | 15 | 19 | 22 | 22 | 19 | 15 | 10 | 7 |
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| Rainfall (mm) | 46 | 34 | 46 | 64 | 43 | 23 | 22 | 75 | 77 | 84 | 61 | 25 |
| UV index | 4 | 5 | 6 | 7 | 8 | 8 | 8 | 8 | 6 | 5 | 4 | 4 |
Best time to visit Porto Alegre
The best time to visit Porto Alegre is April. During this period, temperatures are usually pleasant to warm and there is relatively little rainfall. Especially in April, the climate is favorable, with an average high temperature of 27°C and around 58 mm of rainfall. The warmest month is January, with an average daytime temperature of around 32°C. The driest month is April, with about 58 mm of rainfall, while September is usually the wettest month of the year, with approximately 109 mm. Snow plays virtually no role in the climate here.
Average temperature per month
This chart shows the average daytime (maximum) and nighttime (minimum) temperatures per month in Porto Alegre. The figures are based on climate data from recent years and are presented in degrees Celsius, so you can clearly see the temperature range for each month.
Average rainfall per month
This chart shows the average monthly rainfall in Porto Alegre. The figures are based on long-term climate data and are displayed in millimeters, so you can immediately see which months are drier or wetter.
Average UV index per month
This chart shows the average monthly sun intensity in Porto Alegre. The UV index ranges from 0 (no UV radiation) to 11+ (extreme). A higher UV index means you can burn more quickly, making proper sun protection increasingly important.
Average annual temperature
This chart shows the average annual temperature in Porto Alegre based on data from the past ten years. It allows you to see at a glance how the climate is evolving and whether there are clear warming trends.
Average annual rainfall
This chart shows the average annual rainfall in Porto Alegre over the past ten years. It allows you to see at a glance how much rain falls each year and whether there are clear fluctuations between the years.
Weather experiences in Porto Alegre
The weather in Porto Alegre is rated an average of 4.3 out of 5 stars by 8 visitors. Have you been to Porto Alegre? Share your experience with the weather to help other visitors plan their trip.
Average weather per month
Click on a month below and discover what the weather in Porto Alegre is typically like. For each period, you can instantly see the average temperature, rainfall, wind, and UV index. Thanks to years of historical weather data, you’ll know exactly what to expect during your trip.