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Fourth heatwave hits France July 28 with 42-43°C temperatures and widespread tropical nights.
France faces a fourth heatwave beginning July 28, with extreme temperatures forecasted to reach 42-43°C in southwestern regions on July 29. The event represents a continuation of the intense thermal pattern established earlier in 2026, following record-breaking conditions in June and a 16-day heat event in July.
Tropical nights are expected across three-quarters of France during early August, creating conditions where nighttime temperatures remain dangerously elevated. This phenomenon compounds heat stress by preventing natural cooling periods essential for recovery.
Record temperatures and successive heatwaves are anticipated through early August, sustaining the climate acceleration pattern documented in recent months. The convergence of extreme daytime heat with widespread tropical nights underscores the severity of atmospheric conditions developing across the country.
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Thermal forecast shows elevated risk across southwestern and central regions
Meteorological data indicates 42-43°C peaks in southwestern France on July 29, with tropical nights spreading across three-quarters of the nation during early August. These conditions reflect atmospheric patterns driving successive extreme heat events through the month. Nighttime temperatures remaining elevated prevent physiological cooling mechanisms essential during prolonged heat exposure.
Fourth consecutive heatwave extends 2026 pattern into August
The July 28 onset marks the fourth major heatwave of 2026, following the record-breaking June event and the 16-day July heatwave. Record temperatures are expected to persist through early August, demonstrating the clustering of extreme heat events within a compressed timeframe. This succession of events reflects the sustained atmospheric conditions characterizing summer 2026.