The best months to visit Jersey are July and August. See monthly temperatures, rainfall and rain days (1991–2020 averages) to plan your trip.
Average daytime high and monthly rainfall in Jersey: January 9°C / 108mm; February 11°C / 81mm; March 11°C / 69mm; April 13°C / 57mm; May 16°C / 54mm; June 17°C / 53mm; July 19°C / 49mm; August 21°C / 65mm; September 18°C / 74mm; October 16°C / 119mm; November 13°C / 131mm; December 11°C / 134mm.