Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Puerto Rico features a cold semi-arid climate (BSk).Temperatures typically range between 17 °C (63 °F) and 23 °C (74 °F) through the year, but rarely can drop to 12 °C (54 °F) or can rise to as high as 31 °C (88 °F).The average annual precipitation amounts to about 99 mm (3.9 inches) and receives 18 rainy days on the 1 mm (0.04 inches) threshold annually.Puerto Rico enjoys an average of 4029 hours of sunshine throughout the year, and daylight varies from 10 hours 24 minutes to 13 hours 51 minutes per day.
The warmest months in Puerto Rico are July, August and September, with daily mean temperatures ranging from 22 to 23 °C (72 - 74 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 17 to 17 °C (63 - 63 °F) throughout the day. On average each year, Puerto Rico experiences 32 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 22°C (73°F) | 23°C (73°F) | 24°C (75°F) | 26°C (79°F) | 26°C (80°F) | 29°C (84°F) | 30°C (85°F) | 31°C (88°F) | 29°C (84°F) | 29°C (85°F) | 26°C (79°F) | 24°C (75°F) |
Mean maximum | 21°C (70°F) | 21°C (71°F) | 22°C (72°F) | 23°C (74°F) | 24°C (75°F) | 25°C (78°F) | 28°C (83°F) | 29°C (85°F) | 27°C (81°F) | 28°C (82°F) | 24°C (75°F) | 22°C (72°F) |
Average high | 18°C (65°F) | 19°C (66°F) | 19°C (66°F) | 19°C (67°F) | 21°C (70°F) | 22°C (72°F) | 24°C (76°F) | 25°C (78°F) | 24°C (76°F) | 23°C (75°F) | 21°C (70°F) | 19°C (67°F) |
Daily mean | 17°C (63°F) | 17°C (63°F) | 17°C (63°F) | 18°C (64°F) | 19°C (67°F) | 20°C (69°F) | 22°C (72°F) | 23°C (74°F) | 22°C (73°F) | 22°C (72°F) | 20°C (68°F) | 18°C (65°F) |
Average low | 16°C (61°F) | 16°C (61°F) | 16°C (60°F) | 16°C (62°F) | 18°C (64°F) | 19°C (66°F) | 20°C (69°F) | 21°C (70°F) | 21°C (70°F) | 21°C (69°F) | 19°C (66°F) | 17°C (63°F) |
Mean minimum | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 15°C (59°F) | 16°C (61°F) | 18°C (64°F) | 19°C (66°F) | 20°C (68°F) | 20°C (68°F) | 18°C (65°F) | 16°C (62°F) | 15°C (60°F) |
Minimum | 13°C (55°F) | 12°C (55°F) | 12°C (54°F) | 14°C (58°F) | 15°C (59°F) | 16°C (62°F) | 18°C (65°F) | 19°C (67°F) | 20°C (67°F) | 18°C (64°F) | 15°C (60°F) | 15°C (59°F) |
Compare temperature, precipitation, sunshine, UV index in Puerto Rico, Canary Islands, Spain with other places around the world.
Puerto Rico usually has the most precipitation in January, February and March, with an average of 2 rainy days and 16 mm (0.6 inches) of precipitation per month.The driest months in Puerto Rico are July, August and September. On average, 1 mm (0.0 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 15 (0.6) | 15 (0.6) | 16 (0.6) | 10 (0.4) | 6 (0.2) | 2 (0.1) | 0 (0.0) | 0 (0.0) | 2 (0.1) | 13 (0.5) | 12 (0.5) | 7 (0.3) |
Average precipitation days (≥ 1 mm) | 2 | 3 | 3 | 2 | 2 | 0 | 0 | 0 | 0 | 2 | 2 | 2 |
The sunniest months in Puerto Rico are May, June and July, when the sun shines an average of 12 hours 47 minutes a day.Least sunny months in Puerto Rico: January, February and November receive an average of 8 hours 57 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 234 | 283 | 341 | 363 | 394 | 386 | 394 | 381 | 341 | 330 | 288 | 289 |
Mean daily daylight hours | 10h 35m | 11h 12m | 12h 0m | 12h 50m | 13h 31m | 13h 51m | 13h 40m | 13h 4m | 12h 17m | 11h 27m | 10h 45m | 10h 24m |
Puerto Rico experiences the highest level of ultraviolet (UV) radiation in April, May and June, when the maximum UV index can reach values of 11 - 12, which corresponds to the Extreme category of sun exposure.January, February and December are in the High exposure category. In these months, the maximum values of the UV index do not exceed 7. For more detailed information, check out our hourly Puerto Rico UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
UV Index (month maximum) | 6 | 7 | 9 | 11 | 12 | 12 | 11 | 11 | 11 | 9 | 7 | 6 |