In April, San Isidro typically sees daytime highs of 24.9°C and overnight lows around 17.6°C. Compared to the annual average high of 22.9°C, April runs +1.9°C.
April in San Isidro averages a daytime high of 24.9°C and an overnight low of 17.6°C.
April runs +1.9°C compared to San Isidro's annual average high of 22.9°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 24.9°C and cooler evenings around 17.6°C.