Cambridge basked in the hottest May day on record Friday, with temperatures peaking at 28.2°C, shattering the previous high of 27.2°C set in 1956. The Met Office said the reading at the Botanic Garden weather station broke the long-standing record at 15:42 local time, as southern England sweltered under an unseasonably intense heatwave.
The surge came as high pressure anchored over the region drew scorching air from continental Europe, pushing daytime highs well above normal seasonal averages. Heathrow Airport recorded 26.8°C, while Gatwick Airport hit 26.1°C—both among the warmest May readings in their records. The Met Office issued a level-three heat-health alert for parts of the southeast, warning vulnerable groups to stay hydrated and avoid prolonged sun exposure.
Key Points
- ✅ Cambridge sets new UK May temperature record: 28.2°C
- ⚡ Previous record stood since 1956 at 27.2°C
- 💡 Met Office warns of more extreme weather in coming weeks
Scientists linked the extraordinary heat to a warming climate, noting that May temperature records have been broken more frequently in the past decade. Dr. Emily Carter, a climate scientist at the University of Reading, said, "This is consistent with the trend we’re seeing: hotter, drier springs becoming the norm rather than the exception."
| Location | May 24 Temp (°C) | Previous May Record (°C) | Year |
|---|---|---|---|
| Cambridge Botanic Garden | 28.2 | 27.2 | 1956 |
| Heathrow Airport | 26.8 | 25.9 | 1990 |
| Gatwick Airport | 26.1 | 25.6 | 2005 |
The event disrupted outdoor events across the region. A charity fun run in Brentwood was canceled due to heat stress fears, while Wimbledon officials began briefing grounds staff on heat protocols ahead of the tournament. In London, the Thames Path saw a 23% drop in walkers compared to the same Friday last year, according to Transport for London data.
💡 Pro Tip
Keep a reusable water bottle in your car and refill every two hours—dehydration symptoms can mimic fatigue, especially during sudden heat spikes.
Emergency services reported a 15% increase in heat-related calls, primarily from elderly residents and those with pre-existing conditions. London Ambulance Service urged anyone concerned about symptoms like dizziness or nausea to call 111 for non-emergency advice before dialing 999.
📋 By The Numbers
- 1956 — Year the previous May record was set
- 23% — Drop in Thames Path walkers during the heat
- 15% — Rise in heat-related ambulance calls
As the sun dipped below the horizon, temperatures remained stubbornly high, dipping only to 19.4°C in central London by 22:00. Forecasters warned that the blocking high pressure system could persist through the weekend, raising concerns about water stress in already dry soils across East Anglia and the Southeast. The Environment Agency issued advice for farmers to prioritize irrigation for young crops and vulnerable livestock.
- Monitor soil moisture levels — essential for root development in early crops
- Provide shade and water for outdoor animals during peak heat
- Check on elderly neighbors — heat exhaustion can escalate quickly in high-risk groups
The record-breaking day capped a week of extreme contrasts: just days earlier, parts of Scotland experienced frost warnings with temperatures near freezing. The Met Office attributed the sharp contrast to a split jet stream pattern, which has become more pronounced in recent years, amplifying temperature swings across the UK.