Normal weather for Porto Alegre in December
It's hot in December in Porto Alegre with an average temperature of 31°C. Temperatures this month range from a low of 29°C to a high of 33°C. At night, you can expect temperatures between 19°C and 22°C.
In December, there is an average of 270 mm of precipitation, spread over 24 days. The wind speed is around 3 Bft, mostly coming from the East.
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Porto Alegre in December |
London | ||
|---|---|---|---|
 Average Temperature |
31°C | 9°C | |
 High Temp |
33°C | 11°C | |
| Low Temp |
29°C | 8°C | |
 Total Precipitation |
270 mm | 67 mm | |
| Rainy Days |
24 days | 10 days | |
Curious about the climate in other parts of Brazil? Check out the weather and climate in places like Rio de Janeiro, Salvador, Pipa, or have a look at other destinations in Brazil.
Start of December
The month of December starts in Porto Alegre with hot temperatures, averaging around 31°C during the day and nights close to 20°C. Plenty of days with a chance of precipitation.
Mid-December
By mid-December, the average daytime temperature rises to around 32°C, with nights close to 22°C. The chance of precipitation is high during this period.
End of December
By the end of December, the average daytime temperature in Porto Alegre will be around 32°C, with nights close to 22°C. There’s a significant chance of many days with precipitation.
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Is December a good time to visit Porto Alegre?
After some sun? Then December isn’t the best time to be in Porto Alegre. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Porto Alegre in December
With 39°C, Porto Alegre hit the highest temperature in the last 10 years in December 2021. The lowest daytime temperature in this month was 22°C in 2019. The extreme night temperatures ranged from a low of 12°C to a high of 27°C.
Check out the climate of Porto Alegre for all months and discover the best travel time
November
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Daily Temperature in December in Porto Alegre
This chart shows the average daily temperatures, both day and night, for each day in December in Porto Alegre, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in December in Porto Alegre
The chart below shows the average daily precipitation in December for Porto Alegre, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for December, you can expect around 24 days of rain in Porto Alegre.
Daily UV Index in December in Porto Alegre
This chart shows the average daily UV index in December in Porto Alegre, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in December in Porto Alegre Over the Years
This chart shows the average temperature in December in Porto Alegre, measured in degrees Celsius, over the past years.
Total Precipitation in December in Porto Alegre Over the Years
This chart shows the average precipitation in December in Porto Alegre, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in December for Porto Alegre
Click on a specific day in December for detailed info on the typical weather on that day in Porto Alegre. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in December in Porto Alegre
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Average Weather in Porto Alegre by Month
Click on a month below to see detailed weather info for Porto Alegre. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Porto Alegre for all months at once
