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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Norwich Wire weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Do not leave aerosols, electronics or suncream in a car when temperatures exceed 22°C: cabin heat can reach 47°C inside an hour, posing fire, explosion and chemical degradation risks.
Which items should I remove from my car in hot weather?
Any pressurised container (deodorant, hairspray, whipped cream), electronic devices with lithium-ion batteries, medications, sunglasses with plastic frames and sunscreen. Pet food and bottled water also degrade or become hazardous above 40°C.
What temperatures cause damage inside a parked car?
On a 27°C day a dashboard can reach 53°C. Lithium batteries start to swell or vent at about 60°C; aerosol cans burst at roughly 75°C. The UK weather hub shows that Norwich often hits these thresholds between May and September.
Can I leave sunglasses in the car in summer?
Only if they are glass lenses and metal frames. Plastic frames warp above 50°C and polarising coatings delaminate. Store them in a case under the seat, not on the dashboard.
Are electric vehicle batteries at risk in hot cars?
EV traction batteries are thermally managed and unaffected. But portable power banks, laptops and e-cigarettes should never be left in a hot car – they can fail at 55–65°C.
How do I quickly cool down a car after work?
Open all windows for 30 seconds, then switch the air-con to fresh-air mode (not recirculate) for the first two minutes. This pushes out superheated air from the dashboard area.
For heatwave planning in your area see the 10 Day Weather Forecast UK or check conditions in Birmingham, Liverpool and Glasgow.