In September, Uruguaiana typically sees daytime highs of 22.8°C and overnight lows around 11.5°C. Compared to the annual average high of 25.6°C, September runs -2.8°C.
September in Uruguaiana averages a daytime high of 22.8°C and an overnight low of 11.5°C.
September runs -2.8°C compared to Uruguaiana's annual average high of 25.6°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 22.8°C and cooler evenings around 11.5°C.