Weather in Porto Alegre: March
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Average day temperature: | 84.2°F |
| Average night temperature: | 71.1°F | |
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Sea water temperature: | 80.0°F |
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Number of sunny days: | 15 days |
| Day length: | 11.8 - 12.7 hours | |
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Number of rainy days: | 3 days |
| Precipitation totals: | 1.3 in. | |
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forecast
| Porto Alegre |
temperature
| Porto Alegre |
Air temperature in March, °F
The highest day temperature during March of 2025 was 98°F. At the same time the lowest night temperature was 62°F. Daily and nightly averages during March were 85.7°F and 70.5°F.
Sea water temperature in Porto Alegre in March, °F
The average sea water temperature in March of 2025 was 81.6°F. The highest and lowest sea temperatures during the month were 86.7°F and 78.1°F.
Mostly all days in March are sunny but cloudy days are also possible.
Precipitation total in March, in.
Precipitation total value in Porto Alegre in March is 1.3 in. Other months of the year show relatively similar values.
The average wind speed value in March is 5.9 mph
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in March is: 7.4.
Best time for vacation in Porto Alegre
Porto Alegre on a weather map
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