The BBC and the Met Office are today urged to bring an end to "forecast discrimination" by putting Jersey on the national weather map.
The island's tourism authority claims that Jersey and its neighbouring Channel Islands are missing out on millions of pounds of revenue from prospective visitors. A petition also calls for more accurate weather forecasts to reflect its sunny climate.
Jersey Tourism analysed a month's BBC national TV weather forecasts and found that it was mentioned in just 10% of reports. The island was only given a temperature marker in 30% of forecasts and its local weather was mentioned specifically in 5%.
It also found that Jersey's weather was incorrectly reported (at less than the actual temperature) in 24 out of the last 26 forecasts in selected national newspapers.
David de Carteret, director of Jersey Tourism, said: "Jersey has more sunshine hours than anywhere in the British Isles and we think that being excluded does us a disservice.
"Many people don't have any idea just how lovely the weather is a short hop away from the mainland – meaning we lose out on valuable income."
Jersey benefits from prevailing south-west winds and the Gulf Stream and has 2,000 sunshine hours a year with temperatures reaching 30C (86F).
The BBC said its maps regularly showed Jersey and that it was possible to zoom in on the area if there were a "significant" weather event. The Met Office said: "We do not put Jersey on the Met Office pages because it has its own meteorological service. The BBC does cover Jersey and that information does come from us but they create their own maps."