Peterborough is bracing for its third heatwave of the year as the UK Health Security Agency issued an amber heat-health alert for the East of England. The alert comes into force at 9am on Wednesday 8 July and remains in place until 9pm on Sunday 12 July, with the UKHSA dashboard warning of increased risk for vulnerable residents and potential water-related incidents.
Temperatures in the city are expected to climb to 33C, with the Met Office forecasting the peak on Thursday or Friday. Meteorologist Becky Mitchell described the hot spell as less intense than the June heatwave but noted its endurance. “The peak of the heat appears to be Thursday or Friday: 34C in the south-east. By comparison to the heatwave we saw in June, this heatwave won’t be as hot and humid, but it will be a prolonged spell of hot weather which lasts around a week,” she said.
The prolonged heat follows a June that broke temperature records across the region. On Wednesday 24 June, Anglian Water pumped a record 1,600 million litres of water into supply—a third above the typical daily figure of 1,200 million litres. The utility’s director of water services, Ian Rule, warned that such conditions are becoming entrenched. “We’re again facing a hot, dry summer following last year’s record conditions – and we need to face the reality that this kind of extreme weather is becoming our new normal,” he said. Residents have been asked to cut non-essential water use, with hosepipe bans not ruled out for the summer ahead.
The strain on water resources stems from back-to-back dry seasons. Last year brought the driest spring and summer since 1976, leaving reservoirs low heading into winter. Spring 2026 was England’s warmest on record and the Anglian region’s second driest. During the late-May bank holiday scorcher, smart-metered customers used an average of 152.9 litres each per day—up sharply from the usual 120 litres.
Anglian Water is midway through an £11 billion programme to bolster the network against extreme weather, including new pipelines and two proposed reservoirs. For now, the advice for Peterborough remains straightforward: stay hydrated, keep an eye on older or unwell neighbours, and follow any emergency guidance as the steamy week unfolds.
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