UV Index 🇨🇺Cuba

Cuba is the largest island in the Caribbean, stretching across tropical latitudes from roughly 19.8°N at Punta del Quemado to 23.2°N near Havana. Its highest point, Pico Turquino in the Sierra Maestra, rises to 1,974 m. Sitting well within the tropics, the sun passes near the zenith for much of the year, so solar elevation at solar noon stays high from spring through early autumn, sustaining elevated ultraviolet irradiance across most of the country's lowlands and coastlines.

Cuba's elongated west-to-east shape spans more than 1,200 km yet remains entirely tropical, giving the island a remarkably uniform ambient UV regime from Pinar del Río to Guantánamo. Northeast trade winds and the seasonal migration of the Intertropical Convergence Zone drive a pronounced wet season from May to October, when convective cumulus and afternoon thunderstorms frequently suppress midday UV. The Instituto de Meteorología (INSMET) issues the national weather service's forecasts, while the Sierra Maestra adds a modest altitude effect over southeastern Cuba.

Cuba sits at #103 of 191 in the WHO's global ambient-UV ranking with about 4,401 J/m² of average daily UV, around the 46th percentile worldwide.