Costa Rica States — Climate Month by Month
Compare all 7 subdivisions of Costa Rica across the year.
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| Subdivision | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alajuela | 23.6°C74.5°F 182 mm7.2″ | 24°C75.2°F 104 mm4.1″ | 25°C77°F 69 mm2.7″ | 25.5°C77.9°F 89 mm3.5″ | 25.2°C77.4°F 248 mm9.8″ | 24.5°C76.1°F 359 mm14.1″ | 24.5°C76.1°F 377 mm14.8″ | 24.3°C75.7°F 365 mm14.4″ | 24°C75.2°F 367 mm14.4″ | 23.8°C74.8°F 366 mm14.4″ | 23.5°C74.3°F 304 mm12″ | 23.3°C73.9°F 252 mm9.9″ |
| Cartago | 17°C62.6°F 169 mm6.7″ | 17.4°C63.3°F 112 mm4.4″ | 18.2°C64.8°F 97 mm3.8″ | 18.7°C65.7°F 148 mm5.8″ | 18.6°C65.5°F 303 mm11.9″ | 18.1°C64.6°F 343 mm13.5″ | 18.2°C64.8°F 301 mm11.9″ | 18.1°C64.6°F 322 mm12.7″ | 17.9°C64.2°F 370 mm14.6″ | 17.5°C63.5°F 372 mm14.6″ | 17.2°C63°F 283 mm11.1″ | 16.9°C62.4°F 238 mm9.4″ |
| Guanacaste | 25.3°C77.5°F 28 mm1.1″ | 26°C78.8°F 15 mm0.6″ | 26.9°C80.4°F 14 mm0.6″ | 27.4°C81.3°F 46 mm1.8″ | 26.7°C80.1°F 232 mm9.1″ | 25.9°C78.6°F 312 mm12.3″ | 25.9°C78.6°F 196 mm7.7″ | 25.7°C78.3°F 251 mm9.9″ | 25.4°C77.7°F 367 mm14.4″ | 25.1°C77.2°F 361 mm14.2″ | 25°C77°F 147 mm5.8″ | 25°C77°F 51 mm2″ |
| Heredia | 23.4°C74.1°F 221 mm8.7″ | 23.8°C74.8°F 138 mm5.4″ | 24.9°C76.8°F 110 mm4.3″ | 25.4°C77.7°F 144 mm5.7″ | 25.1°C77.2°F 285 mm11.2″ | 24.3°C75.7°F 374 mm14.7″ | 24.4°C75.9°F 437 mm17.2″ | 24.1°C75.4°F 384 mm15.1″ | 23.9°C75°F 339 mm13.3″ | 23.7°C74.7°F 351 mm13.8″ | 23.3°C73.9°F 380 mm15″ | 23.1°C73.6°F 331 mm13″ |
| Limón | 22.5°C72.5°F 244 mm9.6″ | 22.8°C73°F 160 mm6.3″ | 23.8°C74.8°F 131 mm5.2″ | 24.3°C75.7°F 184 mm7.2″ | 24°C75.2°F 303 mm11.9″ | 23.3°C73.9°F 340 mm13.4″ | 23.5°C74.3°F 389 mm15.3″ | 23.2°C73.8°F 346 mm13.6″ | 22.9°C73.2°F 300 mm11.8″ | 22.7°C72.9°F 334 mm13.1″ | 22.3°C72.1°F 362 mm14.3″ | 22.1°C71.8°F 349 mm13.7″ |
| Puntarenas | 23.9°C75°F 49 mm1.9″ | 24.3°C75.7°F 37 mm1.5″ | 25.3°C77.5°F 61 mm2.4″ | 25.7°C78.3°F 146 mm5.7″ | 25.1°C77.2°F 337 mm13.3″ | 24.4°C75.9°F 336 mm13.2″ | 24.5°C76.1°F 284 mm11.2″ | 24.2°C75.6°F 352 mm13.9″ | 23.9°C75°F 407 mm16″ | 23.7°C74.7°F 490 mm19.3″ | 23.5°C74.3°F 286 mm11.3″ | 23.5°C74.3°F 119 mm4.7″ |
| San José | 19.9°C67.8°F 55 mm2.2″ | 20.2°C68.4°F 39 mm1.5″ | 21.1°C70°F 47 mm1.9″ | 21.5°C70.7°F 128 mm5″ | 21.1°C70°F 322 mm12.7″ | 20.6°C69.1°F 335 mm13.2″ | 20.6°C69.1°F 265 mm10.4″ | 20.5°C68.9°F 334 mm13.1″ | 20.2°C68.4°F 400 mm15.7″ | 19.9°C67.8°F 448 mm17.6″ | 19.7°C67.5°F 265 mm10.4″ | 19.6°C67.3°F 119 mm4.7″ |
On mobile, scroll the table horizontally to see all months. Click a subdivision name for its full year-round view.
Frequently asked questions
Which state or province in Costa Rica has the least rain?
Guanacaste is the driest state or province in Costa Rica, with approximately 2020 mm / 79.5 in of average annual rainfall.
Which state or province in Costa Rica is warmest in July?
Guanacaste is the warmest state or province in Costa Rica in July, with an average temperature of 25.9°C / 78.6°F.
Which state or province in Costa Rica is warmest in January?
Guanacaste is the warmest state or province in Costa Rica in January, with an average temperature of 25.3°C / 77.5°F.
Which state or province in Costa Rica has the mildest year-round climate?
Guanacaste has the highest annual average temperature in Costa Rica at 25.9°C / 78.6°F, while Cartago has the lowest at 17.8°C / 64°F.
Which state or province in Costa Rica has the most sunny months?
Guanacaste matches our sunny profiles (warm/mild with limited rain) for 3 months of the year — the most of any state or province in Costa Rica.