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Monthly climate in Santiago do Cacem, Portugal

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Santiago do Cacem features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 11 °C (52 °F) and 21 °C (71 °F) through the year, but rarely can drop to 2 °C (35 °F) or can rise to as high as 38 °C (101 °F). The average annual precipitation amounts to about 450 mm (17.7 inches) and receives 62 rainy days on the 1 mm (0.04 inches) threshold annually. Santiago do Cacem enjoys an average of 3829 hours of sunshine throughout the year, and daylight varies from 9 hours 33 minutes to 14 hours 44 minutes per day.

Monthly average temperatures in Santiago do Cacem, Portugal

The warmest months in Santiago do Cacem are July, August and September, with daily mean temperatures ranging from 21 to 21 °C (70 - 71 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 11 to 13 °C (52 - 55 °F) throughout the day. On average each year, Santiago do Cacem experiences 66 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 Santiago do Cacem. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum22°C
(71°F)		23°C
(74°F)		26°C
(80°F)		27°C
(82°F)		32°C
(90°F)		35°C
(96°F)		35°C
(96°F)		38°C
(101°F)		33°C
(92°F)		32°C
(90°F)		24°C
(76°F)		20°C
(69°F)
Mean maximum18°C
(66°F)		21°C
(70°F)		23°C
(74°F)		25°C
(77°F)		30°C
(86°F)		30°C
(86°F)		31°C
(89°F)		33°C
(91°F)		31°C
(89°F)		29°C
(84°F)		22°C
(72°F)		19°C
(67°F)
Average high15°C
(59°F)		16°C
(62°F)		17°C
(64°F)		19°C
(66°F)		22°C
(73°F)		24°C
(75°F)		25°C
(78°F)		27°C
(80°F)		26°C
(79°F)		23°C
(74°F)		18°C
(65°F)		16°C
(61°F)
Daily mean11°C
(52°F)		13°C
(55°F)		14°C
(57°F)		15°C
(59°F)		18°C
(65°F)		19°C
(67°F)		21°C
(70°F)		21°C
(71°F)		21°C
(70°F)		18°C
(65°F)		15°C
(59°F)		13°C
(55°F)
Average low8°C
(47°F)		10°C
(50°F)		11°C
(51°F)		12°C
(54°F)		14°C
(58°F)		16°C
(60°F)		17°C
(63°F)		17°C
(63°F)		17°C
(62°F)		15°C
(58°F)		12°C
(54°F)		10°C
(50°F)
Mean minimum4°C
(39°F)		6°C
(42°F)		7°C
(45°F)		9°C
(48°F)		11°C
(52°F)		13°C
(57°F)		15°C
(58°F)		15°C
(59°F)		14°C
(57°F)		10°C
(51°F)		8°C
(46°F)		6°C
(43°F)
Minimum2°C
(35°F)		3°C
(38°F)		6°C
(43°F)		8°C
(46°F)		9°C
(49°F)		11°C
(52°F)		13°C
(56°F)		15°C
(59°F)		12°C
(54°F)		9°C
(48°F)		6°C
(44°F)		4°C
(40°F)

Compare climate in Santiago do Cacem with other places

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

Monthly average precipitation in Santiago do Cacem, Portugal

Santiago do Cacem usually has the most precipitation in March, April and November, with an average of 10 rainy days and 71 mm (2.8 inches) of precipitation per month. The driest months in Santiago do Cacem are June, July and August. On average, 5 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Santiago do Cacem. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)31 (1.2)55 (2.2)82 (3.2)70 (2.7)27 (1.1)9 (0.4)3 (0.1)2 (0.1)13 (0.5)45 (1.8)62 (2.4)52 (2.0)
Average precipitation days (≥ 1 mm)5691243002498

Monthly sunshine hours in Santiago do Cacem, Portugal

The sunniest months in Santiago do Cacem are May, June and July, when the sun shines an average of 13 hours 27 minutes a day. Least sunny months in Santiago do Cacem: January, February and December receive an average of 7 hours 3 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Santiago do Cacem. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours186230302353406409421394349315232224
Mean daily daylight hours9h 50m10h 46m11h 58m13h 12m14h 14m14h 44m14h 28m13h 33m12h 23m11h 9m10h 5m9h 33m

Solar UV radiation in Santiago do Cacem, Portugal

Santiago do Cacem 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 Santiago do Cacem UV Index data.

Average daily maximum UV levels by month for Santiago do Cacem. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)3569101110108643