In July, Stevenage typically sees daytime highs of 20.8°C and overnight lows around 12.2°C. Compared to the annual average high of 13.3°C, July runs +7.5°C.
July in Stevenage averages a daytime high of 20.8°C and an overnight low of 12.2°C.
July runs +7.5°C compared to Stevenage's annual average high of 13.3°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 20.8°C and cooler evenings around 12.2°C.