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Monthly climate in Marinha Grande, Portugal

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Marinha Grande features a warm-summer Mediterranean climate (Csb). Temperatures typically range between 11 °C (52 °F) and 19 °C (66 °F) through the year, but rarely can drop to 3 °C (37 °F) or can rise to as high as 31 °C (87 °F). The average annual precipitation amounts to about 744 mm (29.3 inches) and receives 92 rainy days on the 1 mm (0.04 inches) threshold annually. Marinha Grande enjoys an average of 3770 hours of sunshine throughout the year, and daylight varies from 9 hours 23 minutes to 14 hours 55 minutes per day.

Monthly average temperatures in Marinha Grande, Portugal

The warmest months in Marinha Grande are July, August and September, with daily mean temperatures ranging from 19 to 19 °C (66 - 66 °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, Marinha Grande 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 Marinha Grande. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum19°C
(67°F)		20°C
(68°F)		25°C
(77°F)		24°C
(76°F)		29°C
(84°F)		27°C
(81°F)		31°C
(87°F)		31°C
(87°F)		28°C
(82°F)		29°C
(84°F)		22°C
(71°F)		18°C
(64°F)
Mean maximum16°C
(62°F)		19°C
(66°F)		20°C
(68°F)		21°C
(70°F)		25°C
(77°F)		24°C
(76°F)		26°C
(80°F)		26°C
(80°F)		26°C
(79°F)		24°C
(76°F)		20°C
(69°F)		17°C
(63°F)
Average high13°C
(57°F)		15°C
(59°F)		15°C
(60°F)		16°C
(62°F)		19°C
(66°F)		20°C
(67°F)		21°C
(70°F)		21°C
(71°F)		21°C
(71°F)		20°C
(68°F)		16°C
(61°F)		15°C
(59°F)
Daily mean11°C
(52°F)		12°C
(55°F)		13°C
(56°F)		14°C
(58°F)		16°C
(62°F)		17°C
(63°F)		19°C
(66°F)		19°C
(66°F)		19°C
(66°F)		17°C
(63°F)		14°C
(58°F)		13°C
(55°F)
Average low9°C
(49°F)		10°C
(51°F)		11°C
(52°F)		12°C
(54°F)		14°C
(58°F)		15°C
(60°F)		17°C
(62°F)		17°C
(62°F)		16°C
(62°F)		15°C
(59°F)		12°C
(54°F)		11°C
(52°F)
Mean minimum5°C
(41°F)		7°C
(45°F)		7°C
(46°F)		9°C
(48°F)		11°C
(52°F)		14°C
(58°F)		15°C
(59°F)		15°C
(59°F)		14°C
(57°F)		11°C
(52°F)		9°C
(49°F)		7°C
(45°F)
Minimum3°C
(37°F)		5°C
(41°F)		6°C
(44°F)		8°C
(46°F)		9°C
(49°F)		12°C
(54°F)		14°C
(58°F)		15°C
(58°F)		12°C
(55°F)		9°C
(48°F)		8°C
(47°F)		5°C
(40°F)

Compare climate in Marinha Grande with other places

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

Monthly average precipitation in Marinha Grande, Portugal

Marinha Grande usually has the most precipitation in March, April and November, with an average of 12 rainy days and 103 mm (4.1 inches) of precipitation per month. The driest months in Marinha Grande are June, July and August. On average, 15 mm (0.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Marinha Grande. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)60 (2.4)71 (2.8)97 (3.8)101 (4.0)54 (2.1)26 (1.0)10 (0.4)9 (0.3)28 (1.1)82 (3.2)112 (4.4)94 (3.7)
Average precipitation days (≥ 1 mm)81010126621381412

Monthly sunshine hours in Marinha Grande, Portugal

The sunniest months in Marinha Grande are May, June and July, when the sun shines an average of 13 hours 22 minutes a day. Least sunny months in Marinha Grande: January, February and December receive an average of 6 hours 46 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Marinha Grande. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours177225299347406405418392347309227212
Mean daily daylight hours9h 42m10h 41m11h 58m13h 16m14h 22m14h 55m14h 37m13h 39m12h 24m11h 6m9h 58m9h 23m

Solar UV radiation in Marinha Grande, Portugal

Marinha Grande experiences the highest level of ultraviolet (UV) radiation in April, June and July, when the maximum UV index can reach values of 9 - 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 Marinha Grande UV Index data.

Average daily maximum UV levels by month for Marinha Grande. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)35699111098643