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Monthly climate in Alcains, Portugal

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Alcains features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 7 °C (45 °F) and 24 °C (75 °F) through the year, but rarely can drop to -3 °C (28 °F) or can rise to as high as 41 °C (106 °F). The average annual precipitation amounts to about 709 mm (27.9 inches) and receives 75 rainy days on the 1 mm (0.04 inches) threshold annually. Alcains enjoys an average of 3687 hours of sunshine throughout the year, and daylight varies from 9 hours 22 minutes to 14 hours 56 minutes per day.

Monthly average temperatures in Alcains, Portugal

The warmest months in Alcains are July, August and September, with daily mean temperatures ranging from 21 to 24 °C (70 - 75 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 7 to 10 °C (45 - 50 °F) throughout the day. On average each year, Alcains experiences 104 days above 25 °C (77.0 °F) and 5 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Alcains. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum18°C
(64°F)		22°C
(72°F)		24°C
(76°F)		27°C
(81°F)		32°C
(89°F)		39°C
(103°F)		38°C
(101°F)		41°C
(106°F)		35°C
(95°F)		32°C
(90°F)		22°C
(72°F)		19°C
(66°F)
Mean maximum16°C
(62°F)		19°C
(67°F)		22°C
(72°F)		25°C
(77°F)		30°C
(87°F)		34°C
(93°F)		36°C
(98°F)		37°C
(99°F)		34°C
(93°F)		29°C
(85°F)		20°C
(69°F)		17°C
(63°F)
Average high12°C
(53°F)		14°C
(58°F)		16°C
(60°F)		18°C
(65°F)		23°C
(74°F)		27°C
(80°F)		31°C
(88°F)		31°C
(89°F)		27°C
(82°F)		22°C
(72°F)		15°C
(59°F)		13°C
(55°F)
Daily mean7°C
(45°F)		10°C
(50°F)		11°C
(52°F)		13°C
(56°F)		17°C
(64°F)		20°C
(69°F)		24°C
(75°F)		24°C
(75°F)		21°C
(70°F)		17°C
(62°F)		11°C
(52°F)		9°C
(48°F)
Average low4°C
(39°F)		6°C
(42°F)		7°C
(44°F)		9°C
(48°F)		12°C
(53°F)		14°C
(58°F)		17°C
(63°F)		17°C
(63°F)		15°C
(60°F)		12°C
(53°F)		8°C
(46°F)		6°C
(43°F)
Mean minimum-1°C
(31°F)		1°C
(34°F)		2°C
(36°F)		3°C
(37°F)		6°C
(43°F)		10°C
(50°F)		12°C
(53°F)		12°C
(54°F)		11°C
(51°F)		5°C
(42°F)		2°C
(37°F)		1°C
(33°F)
Minimum-3°C
(28°F)		-1°C
(31°F)		1°C
(34°F)		1°C
(34°F)		3°C
(38°F)		7°C
(45°F)		10°C
(51°F)		11°C
(52°F)		9°C
(48°F)		1°C
(34°F)		-1°C
(30°F)		-3°C
(28°F)

Compare climate in Alcains with other places

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

Monthly average precipitation in Alcains, Portugal

Alcains usually has the most precipitation in March, November and December, with an average of 9 rainy days and 104 mm (4.1 inches) of precipitation per month. The driest months in Alcains are June, July and August. On average, 10 mm (0.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Alcains. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)48 (1.9)69 (2.7)109 (4.3)97 (3.8)44 (1.7)18 (0.7)5 (0.2)6 (0.2)36 (1.4)73 (2.9)104 (4.1)99 (3.9)
Average precipitation days (≥ 1 mm)68912641136118

Monthly sunshine hours in Alcains, Portugal

The sunniest months in Alcains are June, July and August, when the sun shines an average of 13 hours 25 minutes a day. Least sunny months in Alcains: January, November and December receive an average of 6 hours 8 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Alcains. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours163213283337400403430401345307210190
Mean daily daylight hours9h 41m10h 41m11h 58m13h 16m14h 23m14h 56m14h 38m13h 39m12h 24m11h 6m9h 57m9h 22m

Solar UV radiation in Alcains, Portugal

Alcains 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, February 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 Alcains UV Index data.

Average daily maximum UV levels by month for Alcains. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)346810111098643