In June, St Helens typically sees daytime highs of 18.2°C and overnight lows around 9.6°C. Compared to the annual average high of 12.6°C, June runs +5.6°C.
June in St Helens averages a daytime high of 18.2°C and an overnight low of 9.6°C.
June runs +5.6°C compared to St Helens's annual average high of 12.6°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 18.2°C and cooler evenings around 9.6°C.