In September, Santa Teresa typically sees daytime highs of 30.4°C and overnight lows around 20.9°C. Compared to the annual average high of 30.2°C, September runs +0.2°C.
September in Santa Teresa averages a daytime high of 30.4°C and an overnight low of 20.9°C.
September runs +0.2°C compared to Santa Teresa's annual average high of 30.2°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 30.4°C and cooler evenings around 20.9°C.