In September, Altamira typically sees daytime highs of 31.3°C and overnight lows around 23.0°C. Compared to the annual average high of 28.5°C, September runs +2.8°C.
September in Altamira averages a daytime high of 31.3°C and an overnight low of 23.0°C.
September runs +2.8°C compared to Altamira's annual average high of 28.5°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 31.3°C and cooler evenings around 23.0°C.