In March, Porto Alegre typically sees daytime highs of 28.1°C and overnight lows around 18.8°C. Compared to the annual average high of 24.3°C, March runs +3.8°C.
March in Porto Alegre averages a daytime high of 28.1°C and an overnight low of 18.8°C.
March runs +3.8°C compared to Porto Alegre's annual average high of 24.3°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 28.1°C and cooler evenings around 18.8°C.