Stephen Cucura has grown tropical and exotic fruit trees on Pine Island for years, but lately he is watching mango trees decline and well water turn saltier, and he thinks the culprit might be miles away in booming Cape Coral. Cucura, who owns Fruitscapes, says Pine Island has seen fewer storms over the past 20 years, with the drop-off accelerating in just the last four or five years.
The theory, laid out in a report from Gulf Coast News and Weather, centers on the idea that Cape Coral has become what scientists call an urban heat island — a developed area that stays warmer than the less-developed land around it because paved and built surfaces absorb more solar radiation and retain that heat. Reporter Evan Dean's piece notes that Cape Coral has undergone substantial development compared with 30 years ago, transforming what was once open land into dense neighborhoods and commercial corridors.
Meteorologist Jim Dickey, cited in that same report, has a specific theory for how that heat might be reaching across the water to Pine Island and Bokeelia. He suggests that rising hot air over Cape Coral draws cooler air off the Gulf, creating a sinking motion over Pine Island and Bokeelia that could be suppressing rainfall there. Dickey also theorizes that heat retained by developed land weakens the nighttime land breeze — the wind that normally forms when land cools faster than water and pushes air offshore, helping spark storms — which in turn could mean fewer offshore thunderstorms and a contributing factor in coastal drought.
A Deficit Without Confirmed Data
The same report cites a rainfall deficit figure for Bokeelia of two feet less than expected, though that number comes from a dataset not independently verified in the reporting. Dickey has said something is clearly happening with rainfall in the area, but he has also cautioned that the lack of rain may partly come down to bad luck, since storm patterns are inherently chaotic. According to the report, Pine Island itself lacks the kind of long-term historical rainfall data that would be needed to actually prove either theory.
Cucura's own observations point to storms that seem to track farther inland instead of reaching Pine Island, a pattern he has watched play out as his mango trees struggle. Four or five of his mango trees have come close to dying this year, a serious decline he links to the drier conditions. Reduced rainfall has also made the water in his main well saltier, he says, compounding the strain on his crops.
Wider Warming Trends Across Florida
The Cape Coral theory arrives against a backdrop of broader climate shifts across the state. Summer nights across Florida are warming nearly twice as fast as summer days, according to a report from WUFT, a trend that tracks with the Gulf Coast experiencing more warm summer nights than it used to. Separately, research from the University of Delaware repository examined ten years of summer days, from 2009 through 2018, across Florida and Delaware to study how sea-breeze fronts interact with precipitation. That research found that sea breezes tied to intense precipitation developed greater vertical extent near the coastline and pushed farther inland than sea breezes that produced no rain, and it concluded that sea breezes significantly increase precipitation over Florida's agricultural lands, particularly when they occur along both coasts of the peninsula.
Southwest Florida's shifting climate has already shown up in other ways. A 2024 report from WGCU found that the updated USDA growing-zone map showed much of Southwest Florida, including Bokeelia, had warmed by more than 5 degrees, a change that same report said Cucura had relied on to plan where to plant his tropical fruit trees. The outlet's growing-zone reporting is available through its original coverage.
Uncertain Future for a Pine Island Grower
Cucura says he can access city water for irrigation, but he says that option is not financially sustainable over the long term. He is now considering properties away from Pine Island because of his rainfall concerns, even as he says he can see himself staying on the island for another 10 or 15 years without knowing what comes after that.
Urban heat islands are not unique to Cape Coral — major metropolitan areas tend to have the strongest heat islands, including New York City, and the Environmental Protection Agency has put forth strategies for large cities to combat the phenomenon. Whether that same dynamic is actually draining rain from Pine Island remains unproven, but for a grower watching his mango trees struggle and his well water turn saltier, the question feels anything but abstract.
