In October, Oceanside typically sees daytime highs of 23.4°C and overnight lows around 13.3°C. Compared to the annual average high of 21.2°C, October runs +2.2°C.
October in Oceanside averages a daytime high of 23.4°C and an overnight low of 13.3°C.
October runs +2.2°C compared to Oceanside's annual average high of 21.2°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 23.4°C and cooler evenings around 13.3°C.