In June, Heerlen typically sees daytime highs of 20.5°C and overnight lows around 10.3°C. Compared to the annual average high of 13.3°C, June runs +7.2°C.
June in Heerlen averages a daytime high of 20.5°C and an overnight low of 10.3°C.
June runs +7.2°C compared to Heerlen's annual average high of 13.3°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 20.5°C and cooler evenings around 10.3°C.