In September, Arjona typically sees daytime highs of 31.1°C and overnight lows around 24.2°C. Compared to the annual average high of 31.5°C, September runs -0.4°C.
September in Arjona averages a daytime high of 31.1°C and an overnight low of 24.2°C.
September runs -0.4°C compared to Arjona's annual average high of 31.5°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 31.1°C and cooler evenings around 24.2°C.