| Country | Climate |
| Congo, Democratic Republic of the | tropical; hot and humid in equatorial river basin; cooler and drier in southern highlands; cooler and wetter in eastern highlands; north of Equator - wet season (April to October), dry season (December to February); south of Equator - wet season (November to March), dry season (April to October) |
| Congo, Republic of the | tropical; rainy season (March to June); dry season (June to October); persistent high temperatures and humidity; particularly enervating climate astride the Equator |
| Cook Islands | tropical oceanic; moderated by trade winds; a dry season from April to November and a more humid season from December to March |
| Coral Sea Islands | tropical |
| Costa Rica | tropical and subtropical; dry season (December to April); rainy season (May to November); cooler in highlands |
| Cote d'Ivoire | tropical along coast, semiarid in far north; three seasons - warm and dry (November to March), hot and dry (March to May), hot and wet (June to October) |
| Croatia | Mediterranean and continental; continental climate predominant with hot summers and cold winters; mild winters, dry summers along coast |
| Cuba | tropical; moderated by trade winds; dry season (November to April); rainy season (May to October) |
| Curacao | tropical marine climate, ameliorated by northeast trade winds, results in mild temperatures; semi-arid with average rainfall of 600 mm/year |
| Cyprus | temperate; Mediterranean with hot, dry summers and cool winters |
| Czech Republic | temperate; cool summers; cold, cloudy, humid winters |
| Denmark | temperate; humid and overcast; mild, windy winters and cool summers |
| Dhekelia | temperate; Mediterranean with hot, dry summers and cool winters |
| Djibouti | desert; torrid, dry |
| Dominica | tropical; moderated by northeast trade winds; heavy rainfall |
| Dominican Republic | tropical maritime; little seasonal temperature variation; seasonal variation in rainfall |
| Ecuador | tropical along coast, becoming cooler inland at higher elevations; tropical in Amazonian jungle lowlands |
| Egypt | desert; hot, dry summers with moderate winters |