word | | Climate |
| tropical | Samoa | tropical; rainy season (November to April), dry season (May to October) |
| tropical | Sao Tome and Principe | tropical; hot, humid; one rainy season (October to May) |
| tropical | Senegal | tropical; hot, humid; rainy season (May to November) has strong southeast winds; dry season (December to April) dominated by hot, dry, harmattan wind |
| tropical | Seychelles | tropical marine; humid; cooler season during southeast monsoon (late May to September); warmer season during northwest monsoon (March to May) |
| tropical | Sierra Leone | tropical; hot, humid; summer rainy season (May to December); winter dry season (December to April) |
| tropical | Singapore | tropical; hot, humid, rainy; two distinct monsoon seasons - Northeastern monsoon (December to March) and Southwestern monsoon (June to September); inter-monsoon - frequent afternoon and early evening thunderstorms |
| tropical | Solomon Islands | tropical monsoon; few extremes of temperature and weather |
| tropical | Spratly Islands | tropical |
| tropical | Sri Lanka | tropical monsoon; northeast monsoon (December to March); southwest monsoon (June to October) |
| tropical | Sudan | tropical in south; arid desert in north; rainy season varies by region (April to November) |
| tropical | Suriname | tropical; moderated by trade winds |
| tropical | Swaziland | varies from tropical to near temperate |
| tropical | Taiwan | tropical; marine; rainy season during southwest monsoon (June to August); cloudiness is persistent and extensive all year |
| tropical | Tanzania | varies from tropical along coast to temperate in highlands |
| tropical | Thailand | tropical; rainy, warm, cloudy southwest monsoon (mid-May to September); dry, cool northeast monsoon (November to mid-March); southern isthmus always hot and humid |
| tropical | Timor-Leste | tropical; hot, humid; distinct rainy and dry seasons |
| tropical | Togo | tropical; hot, humid in south; semiarid in north |
| tropical | Tokelau | tropical; moderated by trade winds (April to November) |
| tropical | Tonga | tropical; modified by trade winds; warm season (December to May), cool season (May to December) |
| tropical | Trinidad and Tobago | tropical; rainy season (June to December) |
| tropical | Turks and Caicos Islands | tropical; marine; moderated by trade winds; sunny and relatively dry |
| tropical | Tuvalu | tropical; moderated by easterly trade winds (March to November); westerly gales and heavy rain (November to March) |
| tropical | Uganda | tropical; generally rainy with two dry seasons (December to February, June to August); semiarid in northeast |
| tropical | 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 ... |
| tropical | United States Pacific Island Wildlife Refuges | ... 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 ... |
| tropical | 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 |
| tropical | Venezuela | tropical; hot, humid; more moderate in highlands |
| tropical | Vietnam | tropical in south; monsoonal in north with hot, rainy season (May to September) and warm, dry season (October to March) |