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Monthly climate in Mansoa, Guinea-Bissau

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Mansoa features a tropical savanna climate (Aw). Temperatures typically range between 26 °C (79 °F) and 30 °C (86 °F) through the year, but rarely can drop to 17 °C (62 °F) or can rise to as high as 43 °C (110 °F). The average annual precipitation amounts to about 1427 mm (56.2 inches) and receives 113 rainy days on the 1 mm (0.04 inches) threshold annually. Mansoa enjoys an average of 3554 hours of sunshine throughout the year, and daylight varies from 11 hours 24 minutes to 12 hours 48 minutes per day.

Monthly average temperatures in Mansoa, Guinea-Bissau

The warmest months in Mansoa are March, April and May, with daily mean temperatures ranging from 29 to 30 °C (85 - 86 °F) throughout the day. The coldest temperatures usually occur in January, August and December, when daily mean temperatures range from 26 to 27 °C (79 - 80 °F) throughout the day. On average each year, Mansoa 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 Mansoa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum39°C
(102°F)		41°C
(106°F)		43°C
(109°F)		43°C
(110°F)		42°C
(108°F)		39°C
(102°F)		34°C
(94°F)		33°C
(92°F)		35°C
(95°F)		36°C
(96°F)		38°C
(100°F)		37°C
(100°F)
Mean maximum37°C
(99°F)		39°C
(103°F)		40°C
(105°F)		41°C
(106°F)		40°C
(105°F)		37°C
(99°F)		33°C
(92°F)		33°C
(91°F)		34°C
(94°F)		35°C
(95°F)		36°C
(97°F)		37°C
(98°F)
Average high35°C
(95°F)		36°C
(98°F)		37°C
(100°F)		38°C
(101°F)		37°C
(98°F)		34°C
(93°F)		30°C
(87°F)		30°C
(86°F)		31°C
(88°F)		33°C
(91°F)		34°C
(93°F)		34°C
(94°F)
Daily mean26°C
(79°F)		28°C
(82°F)		29°C
(85°F)		30°C
(86°F)		30°C
(86°F)		29°C
(84°F)		27°C
(81°F)		27°C
(80°F)		27°C
(81°F)		28°C
(83°F)		28°C
(83°F)		27°C
(80°F)
Average low19°C
(67°F)		21°C
(70°F)		23°C
(73°F)		24°C
(75°F)		25°C
(77°F)		25°C
(78°F)		25°C
(77°F)		25°C
(76°F)		25°C
(76°F)		25°C
(78°F)		24°C
(76°F)		21°C
(69°F)
Mean minimum17°C
(63°F)		18°C
(65°F)		21°C
(69°F)		22°C
(72°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)		21°C
(70°F)		18°C
(65°F)
Minimum17°C
(62°F)		17°C
(63°F)		19°C
(66°F)		22°C
(71°F)		22°C
(72°F)		22°C
(73°F)		23°C
(73°F)		23°C
(73°F)		23°C
(73°F)		22°C
(73°F)		18°C
(65°F)		17°C
(63°F)

Compare climate in Mansoa with other places

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

Monthly average precipitation in Mansoa, Guinea-Bissau

Mansoa usually has the most precipitation in July, August and September, with an average of 27 rainy days and 414 mm (16.3 inches) of precipitation per month. The driest months in Mansoa 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 Mansoa. 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)2 (0.1)56 (2.2)389 (15.3)510 (20.1)344 (13.5)110 (4.3)16 (0.6)0 (0.0)
Average precipitation days (≥ 1 mm)0000092928261740

Monthly sunshine hours in Mansoa, Guinea-Bissau

The sunniest months in Mansoa are March, April and May, when the sun shines an average of 10 hours 57 minutes a day. Least sunny months in Mansoa: January, August and September receive an average of 8 hours 17 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Mansoa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours257289334331341302273244259295302320
Mean daily daylight hours11h 29m11h 44m12h 3m12h 23m12h 40m12h 48m12h 44m12h 29m12h 10m11h 50m11h 33m11h 24m

Solar UV radiation in Mansoa, Guinea-Bissau

Mansoa 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. February, November 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 Mansoa UV Index data.

Average daily maximum UV levels by month for Mansoa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)1010111212131314141299