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Monthly climate in Fronteira, Portugal

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Fronteira features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 9 °C (48 °F) and 25 °C (76 °F) through the year, but rarely can drop to -3 °C (27 °F) or can rise to as high as 44 °C (111 °F). The average annual precipitation amounts to about 494 mm (19.4 inches) and receives 70 rainy days on the 1 mm (0.04 inches) threshold annually. Fronteira enjoys an average of 3753 hours of sunshine throughout the year, and daylight varies from 9 hours 27 minutes to 14 hours 51 minutes per day.

Monthly average temperatures in Fronteira, Portugal

The warmest months in Fronteira are July, August and September, with daily mean temperatures ranging from 23 to 25 °C (73 - 76 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 9 to 11 °C (48 - 53 °F) throughout the day. On average each year, Fronteira experiences 123 days above 25 °C (77.0 °F) and 2 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Fronteira. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum21°C
(70°F)		24°C
(75°F)		27°C
(81°F)		29°C
(85°F)		35°C
(95°F)		42°C
(108°F)		41°C
(107°F)		44°C
(111°F)		37°C
(100°F)		35°C
(95°F)		25°C
(78°F)		20°C
(68°F)
Mean maximum18°C
(65°F)		22°C
(71°F)		24°C
(76°F)		28°C
(82°F)		33°C
(91°F)		36°C
(97°F)		39°C
(102°F)		40°C
(104°F)		36°C
(98°F)		31°C
(89°F)		23°C
(73°F)		19°C
(66°F)
Average high14°C
(57°F)		17°C
(62°F)		18°C
(64°F)		20°C
(68°F)		25°C
(78°F)		28°C
(83°F)		32°C
(90°F)		33°C
(92°F)		30°C
(86°F)		25°C
(77°F)		18°C
(64°F)		15°C
(59°F)
Daily mean9°C
(48°F)		11°C
(53°F)		13°C
(55°F)		15°C
(59°F)		19°C
(66°F)		21°C
(70°F)		24°C
(75°F)		25°C
(76°F)		23°C
(73°F)		18°C
(65°F)		13°C
(56°F)		11°C
(52°F)
Average low5°C
(41°F)		7°C
(46°F)		8°C
(47°F)		10°C
(50°F)		13°C
(55°F)		15°C
(59°F)		16°C
(62°F)		17°C
(63°F)		16°C
(62°F)		13°C
(56°F)		9°C
(49°F)		7°C
(46°F)
Mean minimum-0°C
(32°F)		3°C
(37°F)		3°C
(38°F)		5°C
(42°F)		7°C
(46°F)		11°C
(51°F)		12°C
(54°F)		13°C
(56°F)		11°C
(53°F)		7°C
(45°F)		4°C
(40°F)		2°C
(36°F)
Minimum-3°C
(27°F)		0°C
(32°F)		1°C
(34°F)		4°C
(39°F)		5°C
(41°F)		9°C
(48°F)		11°C
(53°F)		12°C
(54°F)		9°C
(49°F)		5°C
(41°F)		2°C
(36°F)		-1°C
(31°F)

Compare climate in Fronteira with other places

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

Monthly average precipitation in Fronteira, Portugal

Fronteira usually has the most precipitation in March, April and November, with an average of 10 rainy days and 76 mm (3.0 inches) of precipitation per month. The driest months in Fronteira 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 Fronteira. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)34 (1.3)47 (1.9)82 (3.2)77 (3.0)33 (1.3)13 (0.5)4 (0.2)4 (0.2)24 (0.9)43 (1.7)69 (2.7)63 (2.5)
Average precipitation days (≥ 1 mm)57812541135109

Monthly sunshine hours in Fronteira, Portugal

The sunniest months in Fronteira are May, June and July, when the sun shines an average of 13 hours 26 minutes a day. Least sunny months in Fronteira: January, February and December receive an average of 6 hours 37 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Fronteira. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours175218290338401404429401349313220208
Mean daily daylight hours9h 45m10h 43m11h 58m13h 14m14h 18m14h 51m14h 34m13h 36m12h 23m11h 7m10h 1m9h 27m

Solar UV radiation in Fronteira, Portugal

Fronteira 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, 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 Fronteira UV Index data.

Average daily maximum UV levels by month for Fronteira. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)3469101110108643