Monthly climate in Harper, Liberia

Under the Köppen–Geiger climate classification Harper features a tropical monsoon climate (Am). Temperatures typically range between 25 °C (77 °F) and 27 °C (81 °F) through the year, but rarely can drop to 21 °C (70 °F) or can rise to as high as 31 °C (88 °F). The average annual precipitation amounts to about 2527 mm (99.5 inches) and receives 319 rainy days on the 1 mm (0.04 inches) threshold annually. Harper enjoys an average of 3491 hours of sunshine throughout the year, and daylight varies from 11 hours 51 minutes to 12 hours 21 minutes per day.

Monthly average temperatures in Harper, Liberia

The warmest months in Harper are February, March and April, with daily mean temperatures ranging from 27 to 27 °C (80 - 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 (77 - 78 °F) throughout the day. On average each year, Harper experiences 328 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average precipitation in Harper, Liberia

Harper usually has the most precipitation in May, June and September, with an average of 28 rainy days and 368 mm (14.5 inches) of precipitation per month. The driest months in Harper are January, February and December. On average, 109 mm (4.3 inches) of precipitation falls during these months.

Monthly sunshine hours in Harper, Liberia

The sunniest months in Harper are March, November and December, when the sun shines an average of 10 hours 2 minutes a day. Least sunny months in Harper: January, June and September receive an average of 8 hours 44 minutes of sunshine daily.

Solar UV radiation in Harper, Liberia

Harper experiences the highest level of ultraviolet (UV) radiation in April, May and September, when the maximum UV index can reach values of 12 - 15, which corresponds to the Extreme category of sun exposure. January, June and July are in the 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 Harper UV Index data.