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Monthly climate in Buenos Aires, Puntarenas, Costa Rica

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Buenos Aires features a tropical rainforest climate (Af).Temperatures typically range between 19 °C (66 °F) and 20 °C (68 °F) through the year, but rarely can drop to 10 °C (51 °F) or can rise to as high as 28 °C (82 °F).The average annual precipitation amounts to about 2696 mm (106.1 inches) and receives 260 rainy days on the 1 mm (0.04 inches) threshold annually.Buenos Aires enjoys an average of 3218 hours of sunshine throughout the year, and daylight varies from 11 hours 35 minutes to 12 hours 38 minutes per day.

Monthly average temperatures in Buenos Aires, Puntarenas, Costa Rica §

The warmest months in Buenos Aires are April, May and June, with daily mean temperatures ranging from 20 to 20 °C (68 - 68 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 19 to 19 °C (66 - 66 °F) throughout the day. On average each year, Buenos Aires experiences 53 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Buenos Aires, Puntarenas, Costa Rica.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 26°C
(78°F)		 26°C
(80°F)		 27°C
(80°F)		 28°C
(82°F)		 27°C
(81°F)		 28°C
(82°F)		 26°C
(80°F)		 26°C
(80°F)		 27°C
(80°F)		 26°C
(80°F)		 25°C
(77°F)		 25°C
(78°F)
Mean maximum 25°C
(78°F)		 25°C
(78°F)		 26°C
(79°F)		 27°C
(80°F)		 26°C
(80°F)		 26°C
(79°F)		 26°C
(79°F)		 26°C
(79°F)		 26°C
(79°F)		 25°C
(78°F)		 25°C
(77°F)		 25°C
(77°F)
Average high 23°C
(74°F)		 24°C
(75°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(76°F)		 23°C
(74°F)		 23°C
(74°F)		 23°C
(74°F)
Daily mean 19°C
(66°F)		 19°C
(66°F)		 19°C
(67°F)		 20°C
(68°F)		 20°C
(68°F)		 20°C
(68°F)		 20°C
(68°F)		 20°C
(67°F)		 19°C
(67°F)		 19°C
(67°F)		 19°C
(67°F)		 19°C
(66°F)
Average low 15°C
(59°F)		 15°C
(59°F)		 15°C
(59°F)		 16°C
(61°F)		 17°C
(63°F)		 17°C
(62°F)		 17°C
(62°F)		 16°C
(62°F)		 16°C
(61°F)		 16°C
(61°F)		 16°C
(61°F)		 15°C
(60°F)
Mean minimum 12°C
(55°F)		 12°C
(54°F)		 13°C
(55°F)		 14°C
(57°F)		 15°C
(59°F)		 15°C
(60°F)		 15°C
(59°F)		 15°C
(59°F)		 15°C
(59°F)		 13°C
(56°F)		 14°C
(57°F)		 13°C
(55°F)
Minimum 12°C
(53°F)		 11°C
(51°F)		 12°C
(54°F)		 13°C
(57°F)		 13°C
(57°F)		 14°C
(58°F)		 14°C
(58°F)		 14°C
(58°F)		 14°C
(58°F)		 10°C
(51°F)		 13°C
(56°F)		 12°C
(54°F)

Compare climate in Buenos Aires with other places

Compare temperature, precipitation, sunshine, UV index in Buenos Aires, Puntarenas, Costa Rica with other places around the world.

Monthly average precipitation in Buenos Aires, Puntarenas, Costa Rica §

Buenos Aires usually has the most precipitation in May, August and October, with an average of 29 rainy days and 413 mm (16.3 inches) of precipitation per month.The driest months in Buenos Aires are January, February and March. On average, 42 mm (1.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Buenos Aires, Puntarenas, Costa Rica.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 50 (2.0) 42 (1.6) 35 (1.4) 113 (4.5) 397 (15.6) 288 (11.4) 237 (9.3) 354 (13.9) 299 (11.8) 490 (19.3) 304 (12.0) 86 (3.4)
Average precipitation days (≥ 1 mm) 9 9 11 20 29 28 28 29 29 30 24 14

Monthly sunshine hours in Buenos Aires, Puntarenas, Costa Rica §

The sunniest months in Buenos Aires are March, April and December, when the sun shines an average of 10 hours 7 minutes a day.Least sunny months in Buenos Aires: May, September and October receive an average of 7 hours 49 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Buenos Aires, Puntarenas, Costa Rica.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 247 296 333 297 238 253 261 254 247 234 253 300
Mean daily daylight hours 11h 38m 11h 49m 12h 4m 12h 19m 12h 32m 12h 38m 12h 34m 12h 23m 12h 9m 11h 53m 11h 41m 11h 35m

Solar UV radiation in Buenos Aires, Puntarenas, Costa Rica §

Buenos Aires experiences the highest level of ultraviolet (UV) radiation in March, April and May, when the maximum UV index can reach values of 15 - 16, which corresponds to the Extreme category of sun exposure.January, November and December are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 13. For more detailed information, check out our hourly Buenos Aires UV Index data.

Average daily maximum UV levels by month for Buenos Aires, Puntarenas, Costa Rica.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 13 14 15 16 15 14 14 14 14 14 12 11