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Monthly climate in Castanheira do Ribatejo, Portugal

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Castanheira do Ribatejo features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 10 °C (50 °F) and 22 °C (72 °F) through the year, but rarely can drop to -2 °C (29 °F) or can rise to as high as 43 °C (110 °F). The average annual precipitation amounts to about 527 mm (20.8 inches) and receives 71 rainy days on the 1 mm (0.04 inches) threshold annually. Castanheira do Ribatejo enjoys an average of 3810 hours of sunshine throughout the year, and daylight varies from 9 hours 28 minutes to 14 hours 50 minutes per day.

Monthly average temperatures in Castanheira do Ribatejo, Portugal

The warmest months in Castanheira do Ribatejo 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 January, February and December, when daily mean temperatures range from 10 to 12 °C (50 - 54 °F) throughout the day. On average each year, Castanheira do Ribatejo experiences 92 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 Castanheira do Ribatejo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum20°C
(69°F)		25°C
(77°F)		27°C
(81°F)		29°C
(85°F)		36°C
(97°F)		41°C
(106°F)		39°C
(103°F)		43°C
(110°F)		36°C
(96°F)		34°C
(94°F)		25°C
(76°F)		20°C
(68°F)
Mean maximum18°C
(65°F)		22°C
(72°F)		24°C
(76°F)		26°C
(79°F)		32°C
(90°F)		34°C
(93°F)		35°C
(96°F)		36°C
(97°F)		34°C
(94°F)		30°C
(86°F)		22°C
(73°F)		19°C
(66°F)
Average high14°C
(58°F)		17°C
(62°F)		18°C
(64°F)		19°C
(67°F)		23°C
(74°F)		25°C
(77°F)		27°C
(82°F)		29°C
(84°F)		27°C
(82°F)		24°C
(75°F)		18°C
(64°F)		16°C
(60°F)
Daily mean10°C
(50°F)		12°C
(54°F)		13°C
(56°F)		15°C
(59°F)		18°C
(65°F)		19°C
(67°F)		21°C
(71°F)		22°C
(72°F)		21°C
(70°F)		18°C
(65°F)		14°C
(57°F)		12°C
(54°F)
Average low7°C
(44°F)		8°C
(47°F)		9°C
(49°F)		11°C
(52°F)		13°C
(56°F)		15°C
(59°F)		17°C
(62°F)		17°C
(63°F)		16°C
(62°F)		14°C
(57°F)		11°C
(51°F)		9°C
(48°F)
Mean minimum1°C
(33°F)		4°C
(39°F)		5°C
(42°F)		7°C
(44°F)		9°C
(49°F)		13°C
(55°F)		14°C
(58°F)		15°C
(59°F)		13°C
(55°F)		9°C
(49°F)		6°C
(43°F)		3°C
(38°F)
Minimum-2°C
(29°F)		1°C
(35°F)		4°C
(39°F)		5°C
(42°F)		8°C
(46°F)		11°C
(51°F)		13°C
(56°F)		14°C
(57°F)		11°C
(52°F)		7°C
(46°F)		5°C
(41°F)		1°C
(34°F)

Compare climate in Castanheira do Ribatejo with other places

Compare temperature, precipitation, sunshine, UV index in Castanheira do Ribatejo, Portugal with other places around the world.

Monthly average precipitation in Castanheira do Ribatejo, Portugal

Castanheira do Ribatejo usually has the most precipitation in March, April and November, with an average of 10 rainy days and 80 mm (3.2 inches) of precipitation per month. The driest months in Castanheira do Ribatejo are June, July and August. On average, 7 mm (0.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Castanheira do Ribatejo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)37 (1.4)52 (2.1)73 (2.9)83 (3.3)42 (1.6)12 (0.5)5 (0.2)4 (0.2)29 (1.1)47 (1.9)84 (3.3)60 (2.4)
Average precipitation days (≥ 1 mm)57813541135118

Monthly sunshine hours in Castanheira do Ribatejo, Portugal

The sunniest months in Castanheira do Ribatejo are May, June and July, when the sun shines an average of 13 hours 27 minutes a day. Least sunny months in Castanheira do Ribatejo: January, February and December receive an average of 6 hours 53 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Castanheira do Ribatejo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours180227305351407409420394349312232218
Mean daily daylight hours9h 46m10h 44m11h 58m13h 14m14h 18m14h 50m14h 33m13h 36m12h 23m11h 8m10h 1m9h 28m

Solar UV radiation in Castanheira do Ribatejo, Portugal

Castanheira do Ribatejo experiences the highest level of ultraviolet (UV) radiation in May, June and July, 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 Castanheira do Ribatejo UV Index data.

Average daily maximum UV levels by month for Castanheira do Ribatejo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)356910111098643