Monthly climate in Rio Grande, Panama

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Rio Grande features a tropical rainforest climate (Af). Temperatures typically range between 22 °C (72 °F) and 23 °C (74 °F) through the year, but rarely can drop to 16 °C (61 °F) or can rise to as high as 31 °C (88 °F). The average annual precipitation amounts to about 3069 mm (120.8 inches) and receives 326 rainy days on the 1 mm (0.04 inches) threshold annually. Rio Grande enjoys an average of 3029 hours of sunshine throughout the year, and daylight varies from 11 hours 37 minutes to 12 hours 35 minutes per day.

Monthly average temperatures in Rio Grande, Panama

The warmest months in Rio Grande are May, June and August, with daily mean temperatures ranging from 23 to 23 °C (74 - 74 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 22 to 22 °C (72 - 72 °F) throughout the day. On average each year, Rio Grande experiences 266 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 Rio Grande. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum28°C
(82°F)
29°C
(84°F)
28°C
(83°F)
30°C
(86°F)
31°C
(88°F)
30°C
(86°F)
30°C
(86°F)
30°C
(86°F)
29°C
(85°F)
30°C
(86°F)
28°C
(83°F)
28°C
(82°F)
Mean maximum27°C
(81°F)
28°C
(82°F)
28°C
(82°F)
29°C
(85°F)
29°C
(85°F)
29°C
(85°F)
29°C
(84°F)
29°C
(84°F)
29°C
(84°F)
29°C
(84°F)
28°C
(82°F)
27°C
(81°F)
Average high25°C
(77°F)
25°C
(78°F)
26°C
(78°F)
27°C
(81°F)
27°C
(81°F)
27°C
(81°F)
27°C
(80°F)
27°C
(81°F)
27°C
(81°F)
27°C
(80°F)
26°C
(79°F)
25°C
(78°F)
Daily mean22°C
(72°F)
22°C
(72°F)
22°C
(72°F)
23°C
(74°F)
23°C
(74°F)
23°C
(74°F)
23°C
(74°F)
23°C
(74°F)
23°C
(74°F)
23°C
(74°F)
23°C
(73°F)
22°C
(73°F)
Average low20°C
(68°F)
19°C
(67°F)
20°C
(68°F)
21°C
(69°F)
21°C
(70°F)
21°C
(70°F)
21°C
(70°F)
21°C
(70°F)
21°C
(70°F)
21°C
(70°F)
21°C
(69°F)
20°C
(69°F)
Mean minimum18°C
(65°F)
18°C
(64°F)
19°C
(66°F)
19°C
(66°F)
20°C
(68°F)
20°C
(68°F)
20°C
(68°F)
20°C
(67°F)
20°C
(68°F)
19°C
(67°F)
19°C
(67°F)
19°C
(66°F)
Minimum18°C
(64°F)
16°C
(61°F)
18°C
(65°F)
18°C
(64°F)
19°C
(67°F)
19°C
(66°F)
18°C
(65°F)
19°C
(67°F)
19°C
(67°F)
18°C
(65°F)
19°C
(66°F)
17°C
(63°F)

Compare climate in Rio Grande with other places

Compare temperature, precipitation, sunshine, UV index in Rio Grande, Panama with other places around the world.

Monthly average precipitation in Rio Grande, Panama

Rio Grande usually has the most precipitation in May, October and November, with an average of 29 rainy days and 367 mm (14.5 inches) of precipitation per month. The driest months in Rio Grande are January, February and March. On average, 108 mm (4.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Rio Grande. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)135 (5.3)95 (3.7)96 (3.8)169 (6.6)354 (14.0)317 (12.5)324 (12.7)302 (11.9)351 (13.8)392 (15.4)354 (14.0)180 (7.1)
Average precipitation days (≥ 1 mm)212125243129303030292828

Monthly sunshine hours in Rio Grande, Panama

The sunniest months in Rio Grande are March, April and December, when the sun shines an average of 10 hours 10 minutes a day. Least sunny months in Rio Grande: June, July and August receive an average of 6 hours 50 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Rio Grande. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours254299335300228212210207216224239300
Mean daily daylight hours11h 40m11h 50m12h 4m12h 18m12h 30m12h 35m12h 32m12h 22m12h 8m11h 54m11h 43m11h 37m

Solar UV radiation in Rio Grande, Panama

Rio Grande experiences the highest level of ultraviolet (UV) radiation in April, May and September, when the maximum UV index can reach values of 14 - 15, 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 12. For more detailed information, check out our hourly Rio Grande UV Index data.

Average daily maximum UV levels by month for Rio Grande. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)121314151513141314141211