In July, Tustin typically sees daytime highs of 25.7°C and overnight lows around 15.8°C. Compared to the annual average high of 22.1°C, July runs +3.6°C.
July in Tustin averages a daytime high of 25.7°C and an overnight low of 15.8°C.
July runs +3.6°C compared to Tustin's annual average high of 22.1°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 25.7°C and cooler evenings around 15.8°C.