In June, Guidonia Montecelio typically sees daytime highs of 27.8°C and overnight lows around 14.9°C. Compared to the annual average high of 20.9°C, June runs +6.9°C.
June in Guidonia Montecelio averages a daytime high of 27.8°C and an overnight low of 14.9°C.
June runs +6.9°C compared to Guidonia Montecelio's annual average high of 20.9°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 27.8°C and cooler evenings around 14.9°C.