The waters at Negril are always warm and the beauty of the place has been largely untouched by modern civilisation, giving Negril an authentic subtropical charm. In March,... Read more. Temperature 25Â°C 77Â°F. High Temperature 28Â°C 82Â°F. Low Temperature 22Â°C 72Â°F. Sunshine Hours 10 hrs. Rainfall 71 mm.