In March, San Clemente typically sees daytime highs of 19.3°C and overnight lows around 9.3°C. Compared to the annual average high of 22.2°C, March runs -2.9°C.
March in San Clemente averages a daytime high of 19.3°C and an overnight low of 9.3°C.
March runs -2.9°C compared to San Clemente's annual average high of 22.2°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 19.3°C and cooler evenings around 9.3°C.