JERSEY recorded its hottest night ever – with temperatures not dropping below 27C.
The uncomfortable heat shattered the previous overnight temperature record of 22.3°C set on August 5, 2003.
And that was 5°C above the average maximum daytime temperature for this time of year.
The record night came after Jersey had its hottest day ever, with the temperature peaking at 37.9C – the equivalent of 102F – shortly after 4pm.
After yesterday’s record heat, the night was exceptionally warm at the Maison Saint-Louis observatory, with the temperature not dropping below 27°C so far. To put that into context, that’s 5°C above the average maximum daytime temperature we’d expect in mid-July. pic.twitter.com/mL86mexmcl
— Jersey Met (@Jersey_Met) July 19, 2022
The previous record of 36°C was set in August 2003 and equaled in July 2019.
Fewer than 20% of schools were open as usual yesterday, which should have been the penultimate day of the summer term. A government spokesman said about half of the 33 state schools had half days yesterday, with nine schools closed and six more open.
Pupils and staff in attendance did their best to cool off – popsicles were on the menu at St Mary’s, while Mont Nicolle held its annual water fight and served ice cream.
Some schools planned to reopen today, although many will remain closed. Le Rocquier will be open from 7:30 a.m. to 10 a.m. to allow students to empty their lockers or pick up their homework before the summer holidays.
Warnings that islanders should adjust their routines appeared to have been heeded, according to a senior Jersey Ambulance Service representative.
Speaking mid-afternoon, the head of contingency planning and operational support, Jason Hamon, said an additional team had been made available due to the conditions, but had not yet was required.
He said: “As far as calls go, we seem to have had pretty close to a normal Monday so far. There were a few collapses but nothing that could necessarily be attributed to the heat.
Mr Hamon was among paramedics working at Sunday’s Accuro Jersey triathlon when he said two competitors had been treated for the effects of the heat, in addition to some “normal” triathlon injuries.
Sea temperature was recorded yesterday at 18.3C, compared to an average of around 17C for the time of year. During 1989, the hottest year on record for sea temperature, the sea had reached 19°C by mid-July and finally peaked at 20.7°C in early September.
Cooler weather was expected today, with temperatures dropping back to around 23C on Wednesday.
But the heat is expected to increase further, with the mercury expected to reach 29°C on Sunday.