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Monthly climate in Catio, Guinea-Bissau

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Catio features a tropical savanna climate (Aw). Temperatures typically range between 26 °C (79 °F) and 28 °C (83 °F) through the year, but rarely can drop to 18 °C (65 °F) or can rise to as high as 38 °C (101 °F). The average annual precipitation amounts to about 1864 mm (73.4 inches) and receives 133 rainy days on the 1 mm (0.04 inches) threshold annually. Catio enjoys an average of 3520 hours of sunshine throughout the year, and daylight varies from 11 hours 27 minutes to 12 hours 45 minutes per day.

Monthly average temperatures in Catio, Guinea-Bissau

The warmest months in Catio are April, May and June, with daily mean temperatures ranging from 28 to 28 °C (83 - 83 °F) throughout the day. The coldest temperatures usually occur in January, July and August, when daily mean temperatures range from 26 to 27 °C (79 - 80 °F) throughout the day. On average each year, Catio experiences 329 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 Catio. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum36°C
(97°F)		37°C
(99°F)		38°C
(101°F)		38°C
(101°F)		37°C
(99°F)		35°C
(95°F)		32°C
(90°F)		31°C
(88°F)		33°C
(92°F)		33°C
(92°F)		34°C
(94°F)		35°C
(96°F)
Mean maximum35°C
(95°F)		36°C
(97°F)		37°C
(99°F)		37°C
(98°F)		36°C
(97°F)		33°C
(92°F)		31°C
(88°F)		31°C
(88°F)		32°C
(90°F)		33°C
(91°F)		33°C
(92°F)		35°C
(95°F)
Average high33°C
(91°F)		34°C
(93°F)		34°C
(93°F)		34°C
(93°F)		33°C
(91°F)		31°C
(88°F)		29°C
(85°F)		29°C
(84°F)		30°C
(86°F)		31°C
(88°F)		32°C
(89°F)		33°C
(91°F)
Daily mean26°C
(79°F)		27°C
(81°F)		28°C
(82°F)		28°C
(83°F)		28°C
(83°F)		28°C
(83°F)		27°C
(80°F)		26°C
(80°F)		27°C
(80°F)		28°C
(82°F)		28°C
(82°F)		27°C
(80°F)
Average low21°C
(70°F)		22°C
(72°F)		23°C
(73°F)		24°C
(75°F)		25°C
(77°F)		25°C
(78°F)		25°C
(77°F)		24°C
(76°F)		24°C
(76°F)		25°C
(77°F)		25°C
(77°F)		22°C
(72°F)
Mean minimum19°C
(66°F)		20°C
(68°F)		21°C
(70°F)		22°C
(73°F)		23°C
(74°F)		24°C
(75°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		22°C
(72°F)		20°C
(68°F)
Minimum18°C
(65°F)		19°C
(67°F)		20°C
(69°F)		22°C
(71°F)		21°C
(71°F)		23°C
(73°F)		23°C
(73°F)		23°C
(74°F)		22°C
(73°F)		23°C
(73°F)		20°C
(68°F)		19°C
(66°F)

Compare climate in Catio with other places

Compare temperature, precipitation, sunshine, UV index in Catio, Guinea-Bissau with other places around the world.

Monthly average precipitation in Catio, Guinea-Bissau

Catio usually has the most precipitation in July, August and September, with an average of 29 rainy days and 518 mm (20.4 inches) of precipitation per month. The driest months in Catio are January, February and March. On average, 0 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Catio. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)0 (0.0)0 (0.0)0 (0.0)0 (0.0)8 (0.3)81 (3.2)590 (23.2)561 (22.1)404 (15.9)176 (6.9)44 (1.7)0 (0.0)
Average precipitation days (≥ 1 mm)00001142930282380

Monthly sunshine hours in Catio, Guinea-Bissau

The sunniest months in Catio are March, April and May, when the sun shines an average of 10 hours 54 minutes a day. Least sunny months in Catio: January, August and September receive an average of 8 hours 7 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Catio. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours259291334330338284264232256298306321
Mean daily daylight hours11h 31m11h 45m12h 3m12h 22m12h 38m12h 45m12h 41m12h 27m12h 9m11h 51m11h 35m11h 27m

Solar UV radiation in Catio, Guinea-Bissau

Catio experiences the highest level of ultraviolet (UV) radiation in July, August and September, when the maximum UV index can reach values of 13 - 14, which corresponds to the Extreme category of sun exposure. January, February and December are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 10. For more detailed information, check out our hourly Catio UV Index data.

Average daily maximum UV levels by month for Catio. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)10101212121213141412109