| Country | Climate |
| Togo | tropical; hot, humid in south; semiarid in north |
| Tokelau | tropical; moderated by trade winds (April to November) |
| Tonga | tropical; modified by trade winds; warm season (December to May), cool season (May to December) |
| Trinidad and Tobago | tropical; rainy season (June to December) |
| Tunisia | temperate in north with mild, rainy winters and hot, dry summers; desert in south |
| Turkey | temperate; hot, dry summers with mild, wet winters; harsher in interior |
| Turkmenistan | subtropical desert |
| Turks and Caicos Islands | tropical; marine; moderated by trade winds; sunny and relatively dry |
| Tuvalu | tropical; moderated by easterly trade winds (March to November); westerly gales and heavy rain (November to March) |
| Uganda | tropical; generally rainy with two dry seasons (December to February, June to August); semiarid in northeast |
| Ukraine | temperate continental; Mediterranean only on the southern Crimean coast; precipitation disproportionately distributed, highest in west and north, lesser in east and southeast; winters vary from cool along the Black Sea to cold farther inland; summers are warm across the greater part of the country, hot in the south |
| United Arab Emirates | desert; cooler in eastern mountains |
| United Kingdom | temperate; moderated by prevailing southwest winds over the North Atlantic Current; more than one-half of the days are overcast |
| United States | mostly temperate, but tropical in Hawaii and Florida, arctic in Alaska, semiarid in the great plains west of the Mississippi River, and arid in the Great Basin of the southwest; low winter temperatures in the northwest are ameliorated occasionally in January and February by warm chinook winds from the eastern slopes of the Rocky Mountains |
| United States Pacific Island Wildlife Refuges | Baker, Howland, and Jarvis Islands: equatorial; scant rainfall, constant wind, burning sun Johnston Atoll and Kingman Reef: tropical, but generally dry; consistent northeast trade winds with little seasonal temperature variation Midway Islands: subtropical with cool, moist winters (December to February) and warm, dry summers (May to October); moderated by prevailing easterly winds; most of the 1,067 mm (42 in) of annual rainfall occurs during the winter Palmyra Atoll: equatorial, hot; located within the low pressure area of the Intertropical Convergence Zone (ITCZ) where the northeast and southeast trade winds meet, it is extremely wet with between 4,000-5,000 mm (160-200 in) of rainfall each year |
| Uruguay | warm temperate; freezing temperatures almost unknown |
| Uzbekistan | mostly midlatitude desert, long, hot summers, mild winters; semiarid grassland in east |
| Vanuatu | tropical; moderated by southeast trade winds from May to October; moderate rainfall from November to April; may be affected by cyclones from December to April |
| Venezuela | tropical; hot, humid; more moderate in highlands |
| Vietnam | tropical in south; monsoonal in north with hot, rainy season (May to September) and warm, dry season (October to March) |
| Virgin Islands | subtropical, tempered by easterly trade winds, relatively low humidity, little seasonal temperature variation; rainy season September to November |
| Wake Island | tropical |
| Wallis and Futuna | tropical; hot, rainy season (November to April); cool, dry season (May to October); rains 2,500-3,000 mm per year (80% humidity); average temperature 26.6 degrees C |
| West Bank | temperate; temperature and precipitation vary with altitude, warm to hot summers, cool to mild winters |
| Western Sahara | hot, dry desert; rain is rare; cold offshore air currents produce fog and heavy dew |
| World | a wide equatorial band of hot and humid tropical climates - bordered north and south by subtropical temperate zones - that separate two large areas of cold and dry polar climates |
| Yemen | mostly desert; hot and humid along west coast; temperate in western mountains affected by seasonal monsoon; extraordinarily hot, dry, harsh desert in east |
| Zambia | tropical; modified by altitude; rainy season (October to April) |
| Zimbabwe | tropical; moderated by altitude; rainy season (November to March) |