In September, Santo Tomas typically sees daytime highs of 30.5°C and overnight lows around 23.1°C. Compared to the annual average high of 30.7°C, September runs -0.2°C.
September in Santo Tomas averages a daytime high of 30.5°C and an overnight low of 23.1°C.
September runs -0.2°C compared to Santo Tomas's annual average high of 30.7°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 30.5°C and cooler evenings around 23.1°C.