Channel Islands See Record-Breaking May Heatwave for Third Straight Day

The Channel Islands has recorded its hottest May day for the third consecutive day, with temperatures continuing to climb across Jersey and Guernsey.

Jersey reached 34.2C (93.6F) on Tuesday, while Guernsey recorded 31.5C (88.7F), surpassing the previous highs set just a day earlier. Monday’s records stood at 31.9C (89.4F) in Jersey and 30.7C (87.2F) in Guernsey.

Meteorologists said the unusually early heatwave was unlike anything previously experienced in the islands at this time of year. Forecasters also noted that it was rare for temperatures to keep increasing over three straight days during a single weather event.

Health officials in Guernsey advised residents to take precautions during the hot spell, including staying hydrated, limiting time outdoors during peak afternoon heat, and using hats, sunglasses and sunscreen.

The record-breaking temperatures in the Channel Islands came as the UK also experienced exceptional heat. New May temperature records were set in parts of England for a second day running, with 35.1C (95F) measured at Heathrow and Kew Gardens in London. In south-west England, weather warnings were upgraded from yellow to amber until Thursday evening.

Forecasters said Jersey could come close to breaking its June temperature record of 33.5C (92.3F) if conditions remain hot. Another day of high temperatures was expected on Wednesday before cooler weather arrives later in the week.

Jersey Met predicted highs of 33C (91.4F) in Jersey and around 30C (86F) in Guernsey on Wednesday.

The hot weather has also boosted business for seafront operators and tourism companies. Beachfront businesses reported packed beaches and strong demand over the bank holiday weekend, with some describing Monday’s visitor numbers as exceptional.

Public health officials also encouraged residents to keep homes cool by closing curtains during periods of direct sunlight and to check on elderly neighbours who may be more vulnerable during extreme heat.