Since May 2026, Puerto Rico and Jamaica have been experiencing an unusual drought during the early part of their wet season, with research pointing to climate change as a key factor behind the diminished rainfall and escalating water stress.
- Rainfall decreased by up to 9% in early wet season months
- Drought likelihood increased by 30-40% due to warming
- Water rationing and bans impact hundreds of thousands
What happened
A severe drought has gripped Puerto Rico and Jamaica since May 2026, during what is usually the wettest time of the year. Research by the World Weather Attribution group revealed that human-induced climate change caused a drop in rainfall by approximately 9% in Puerto Rico and 6% in Jamaica from May to July. These conditions made prolonged dry spells significantly more frequent than in times before global warming.
The drought’s effects have been pronounced, with San Juan International Airport in Puerto Rico recording the driest April to August period in 70 years and atmospheric scientists reporting precipitation levels 64% below the historic average. In response, Puerto Rico has implemented a rotating water rationing system affecting around 180,000 residents, while Jamaica has enacted strict bans on non-essential water use in seven parishes.
Why it feels good
Understanding the direct impact of climate change on extreme weather events helps communities and policymakers prepare more effectively for future challenges. The clear evidence linking warming to this drought allows for targeted climate resilience efforts, especially on islands where freshwater resources are limited and vulnerable.
Acknowledging the role of outdated and leaky water infrastructure sheds light on potential improvements that can reduce water loss and ease drought impacts. Increased awareness encourages investment in upgrading systems and managing resources thoughtfully, creating a foundation for better water security amid changing climate patterns.
What to enjoy or watch next
The study highlights that natural weather cycles, like the North Atlantic Oscillation coupled with an emerging El Niño event, will continue influencing rainfall patterns in the Caribbean throughout 2026. Monitoring these atmospheric shifts alongside global warming will be key to anticipating drought intensity and frequency in coming seasons.
Efforts to enhance water infrastructure, reduce leakages, and implement sustainable water management in Puerto Rico and Jamaica deserve attention as communities adapt. Following such developments, as well as the region’s responses to evolving climate impacts, will provide insights into resilience strategies for island nations worldwide.