Marek Kučera 
On 18 June 2025, the Caribbean region continued to endure exceptional heat, with unrelenting hot nights affecting millions. Across the tropical Americas, temperatures remain dangerously high even after sunset, offering little relief from daytime heat.
In particular, the Dominican Republic recorded nighttime minimum temperatures soaring up to 29°C, marking some of the hottest nights ever observed in the region. Such high minimum temperatures, often referred to as “tropical nights,” are particularly challenging as they prevent the body from cooling down and recovering, leading to increased health risks including dehydration, heat exhaustion, and sleep disturbances.
This ongoing pattern of stiflingly warm nights is part of a broader heatwave impacting the Caribbean and neighboring tropical regions, where climate change-driven warming is amplifying the frequency and intensity of extreme heat events.
The persistence of such high nighttime temperatures poses serious challenges not only for public health but also for energy demand, as communities rely more heavily on cooling systems, and for agriculture, where crops struggle under continuous heat stress.
As the summer progresses, meteorologists warn that these heat extremes are likely to continue, underscoring the urgent need for preparedness and adaptation strategies in vulnerable tropical regions.
Illustration picture. Source: https://encrypted-tbn0.gstatic.com/licensed-image?q=tbn:ANd9GcS8bxcTTG6JlGb3y0RQBZZEgm0L4zJrlqg-rybvz7vxKKG_Wn–SHr71H4oDPpCtQ4eQA6mFlH3BeVWHt7AWn_kW4Qav3XuLMdvszqIKw
