In June, Sunnyvale typically sees daytime highs of 22.7°C and overnight lows around 10.8°C. Compared to the annual average high of 19.2°C, June runs +3.5°C.
June in Sunnyvale averages a daytime high of 22.7°C and an overnight low of 10.8°C.
June runs +3.5°C compared to Sunnyvale's annual average high of 19.2°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 22.7°C and cooler evenings around 10.8°C.