In October, San Isidro typically sees daytime highs of 20.9°C and overnight lows around 15.1°C. Compared to the annual average high of 22.9°C, October runs -2.0°C.
October in San Isidro averages a daytime high of 20.9°C and an overnight low of 15.1°C.
October runs -2.0°C compared to San Isidro's annual average high of 22.9°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 20.9°C and cooler evenings around 15.1°C.