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Monthly climate in Ribeira Seca, Portugal

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Ribeira Seca features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 14 °C (58 °F) and 22 °C (72 °F) through the year, but rarely can drop to 9 °C (48 °F) or can rise to as high as 27 °C (80 °F). The average annual precipitation amounts to about 908 mm (35.7 inches) and receives 151 rainy days on the 1 mm (0.04 inches) threshold annually. Ribeira Seca enjoys an average of 3419 hours of sunshine throughout the year, and daylight varies from 9 hours 35 minutes to 14 hours 43 minutes per day.

Monthly average temperatures in Ribeira Seca, Portugal

The warmest months in Ribeira Seca are July, August and September, with daily mean temperatures ranging from 21 to 22 °C (70 - 72 °F) throughout the day. The coldest temperatures usually occur in February, March and April, when daily mean temperatures range from 14 to 15 °C (58 - 59 °F) throughout the day. On average each year, Ribeira Seca experiences 8 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 Ribeira Seca. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum19°C
(66°F)		19°C
(66°F)		19°C
(66°F)		19°C
(67°F)		21°C
(71°F)		24°C
(76°F)		25°C
(77°F)		27°C
(80°F)		26°C
(79°F)		25°C
(77°F)		23°C
(74°F)		20°C
(68°F)
Mean maximum18°C
(65°F)		18°C
(64°F)		18°C
(65°F)		19°C
(66°F)		21°C
(70°F)		22°C
(71°F)		25°C
(76°F)		26°C
(79°F)		25°C
(78°F)		24°C
(75°F)		22°C
(72°F)		19°C
(67°F)
Average high16°C
(62°F)		16°C
(61°F)		16°C
(61°F)		17°C
(62°F)		18°C
(65°F)		21°C
(69°F)		23°C
(73°F)		24°C
(76°F)		23°C
(74°F)		21°C
(71°F)		19°C
(66°F)		17°C
(63°F)
Daily mean15°C
(59°F)		14°C
(58°F)		14°C
(58°F)		15°C
(59°F)		17°C
(62°F)		19°C
(66°F)		21°C
(70°F)		22°C
(72°F)		22°C
(71°F)		20°C
(68°F)		17°C
(64°F)		16°C
(61°F)
Average low14°C
(57°F)		13°C
(55°F)		13°C
(56°F)		14°C
(57°F)		15°C
(59°F)		17°C
(63°F)		19°C
(67°F)		21°C
(69°F)		20°C
(68°F)		18°C
(65°F)		16°C
(61°F)		15°C
(59°F)
Mean minimum11°C
(52°F)		10°C
(50°F)		11°C
(51°F)		11°C
(52°F)		12°C
(54°F)		14°C
(58°F)		17°C
(64°F)		19°C
(66°F)		19°C
(66°F)		16°C
(61°F)		14°C
(57°F)		12°C
(54°F)
Minimum10°C
(50°F)		9°C
(48°F)		9°C
(49°F)		10°C
(50°F)		11°C
(51°F)		13°C
(55°F)		17°C
(63°F)		19°C
(66°F)		17°C
(64°F)		15°C
(58°F)		11°C
(53°F)		10°C
(51°F)

Compare climate in Ribeira Seca with other places

Compare temperature, precipitation, sunshine, UV index in Ribeira Seca, Portugal with other places around the world.

Monthly average precipitation in Ribeira Seca, Portugal

Ribeira Seca usually has the most precipitation in February, October and December, with an average of 14 rainy days and 112 mm (4.4 inches) of precipitation per month. The driest months in Ribeira Seca are June, July and August. On average, 38 mm (1.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Ribeira Seca. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)73 (2.9)98 (3.9)65 (2.5)87 (3.4)68 (2.7)44 (1.7)23 (0.9)49 (1.9)67 (2.6)109 (4.3)96 (3.8)129 (5.1)
Average precipitation days (≥ 1 mm)1315121611107916151314

Monthly sunshine hours in Ribeira Seca, Portugal

The sunniest months in Ribeira Seca are June, July and August, when the sun shines an average of 12 hours 6 minutes a day. Least sunny months in Ribeira Seca: January, February and December receive an average of 6 hours 12 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Ribeira Seca. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours153199271301342363385365325274224212
Mean daily daylight hours9h 52m10h 47m11h 58m13h 11m14h 12m14h 43m14h 26m13h 32m12h 22m11h 10m10h 7m9h 35m

Solar UV radiation in Ribeira Seca, Portugal

Ribeira Seca experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure. January, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Ribeira Seca UV Index data.

Average daily maximum UV levels by month for Ribeira Seca. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)3579101110109743