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Monthly climate in Robertsport, Liberia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Robertsport features a tropical monsoon climate (Am). Temperatures typically range between 25 °C (78 °F) and 27 °C (81 °F) through the year, but rarely can drop to 23 °C (73 °F) or can rise to as high as 31 °C (89 °F). The average annual precipitation amounts to about 3692 mm (145.3 inches) and receives 312 rainy days on the 1 mm (0.04 inches) threshold annually. Robertsport enjoys an average of 3134 hours of sunshine throughout the year, and daylight varies from 11 hours 43 minutes to 12 hours 29 minutes per day.

Monthly average temperatures in Robertsport, Liberia

The warmest months in Robertsport are February, March and April, with daily mean temperatures ranging from 27 to 27 °C (81 - 81 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 25 to 25 °C (78 - 78 °F) throughout the day. On average each year, Robertsport experiences 328 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 Robertsport. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum31°C
(88°F)		31°C
(88°F)		31°C
(89°F)		31°C
(87°F)		30°C
(87°F)		30°C
(86°F)		28°C
(83°F)		29°C
(84°F)		29°C
(85°F)		30°C
(86°F)		30°C
(87°F)		31°C
(88°F)
Mean maximum30°C
(87°F)		30°C
(87°F)		30°C
(87°F)		30°C
(87°F)		30°C
(87°F)		29°C
(85°F)		28°C
(83°F)		28°C
(83°F)		29°C
(84°F)		29°C
(85°F)		30°C
(86°F)		30°C
(86°F)
Average high29°C
(85°F)		29°C
(85°F)		29°C
(85°F)		29°C
(85°F)		29°C
(84°F)		28°C
(82°F)		27°C
(80°F)		27°C
(80°F)		27°C
(81°F)		28°C
(83°F)		29°C
(84°F)		29°C
(84°F)
Daily mean27°C
(81°F)		27°C
(81°F)		27°C
(81°F)		27°C
(81°F)		27°C
(81°F)		26°C
(79°F)		25°C
(78°F)		25°C
(78°F)		25°C
(78°F)		26°C
(79°F)		26°C
(80°F)		27°C
(81°F)
Average low25°C
(77°F)		25°C
(77°F)		25°C
(78°F)		26°C
(78°F)		25°C
(78°F)		25°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		25°C
(77°F)		25°C
(77°F)
Mean minimum24°C
(75°F)		24°C
(75°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		23°C
(74°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)
Minimum23°C
(74°F)		23°C
(74°F)		23°C
(73°F)		24°C
(75°F)		24°C
(75°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		24°C
(75°F)		23°C
(74°F)

Compare climate in Robertsport with other places

Compare temperature, precipitation, sunshine, UV index in Robertsport, Liberia with other places around the world.

Monthly average precipitation in Robertsport, Liberia

Robertsport usually has the most precipitation in June, July and August, with an average of 29 rainy days and 614 mm (24.2 inches) of precipitation per month. The driest months in Robertsport are January, February and December. On average, 70 mm (2.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Robertsport. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)55 (2.2)66 (2.6)98 (3.9)163 (6.4)292 (11.5)588 (23.2)645 (25.4)608 (23.9)584 (23.0)347 (13.7)156 (6.1)90 (3.6)
Average precipitation days (≥ 1 mm)181621253030302830302925

Monthly sunshine hours in Robertsport, Liberia

The sunniest months in Robertsport are March, November and December, when the sun shines an average of 9 hours 23 minutes a day. Least sunny months in Robertsport: June, August and September receive an average of 7 hours 27 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Robertsport. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours247276284277271237246216225272280298
Mean daily daylight hours11h 45m11h 53m12h 4m12h 15m12h 25m12h 29m12h 27m12h 18m12h 8m11h 57m11h 48m11h 43m

Solar UV radiation in Robertsport, Liberia

Robertsport experiences the highest level of ultraviolet (UV) radiation in April, August and September, when the maximum UV index can reach values of 13 - 13, which corresponds to the Extreme category of sun exposure. February, November and December are in the Very High / Extreme exposure category. In these months, the maximum values of the UV index do not exceed 11. For more detailed information, check out our hourly Robertsport UV Index data.

Average daily maximum UV levels by month for Robertsport. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)111112131312121313121010