nomadseason

Monthly climate in Grandola, Portugal

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Grandola features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 10 °C (51 °F) and 23 °C (74 °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 445 mm (17.5 inches) and receives 61 rainy days on the 1 mm (0.04 inches) threshold annually. Grandola enjoys an average of 3808 hours of sunshine throughout the year, and daylight varies from 9 hours 31 minutes to 14 hours 46 minutes per day.

Monthly average temperatures in Grandola, Portugal

The warmest months in Grandola are July, August and September, with daily mean temperatures ranging from 22 to 23 °C (71 - 74 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 10 to 12 °C (51 - 55 °F) throughout the day. On average each year, Grandola experiences 115 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 Grandola. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum23°C
(73°F)		25°C
(78°F)		29°C
(84°F)		29°C
(84°F)		36°C
(97°F)		41°C
(105°F)		40°C
(105°F)		43°C
(110°F)		38°C
(100°F)		35°C
(96°F)		26°C
(79°F)		21°C
(70°F)
Mean maximum19°C
(67°F)		23°C
(73°F)		25°C
(78°F)		27°C
(81°F)		33°C
(92°F)		35°C
(95°F)		36°C
(97°F)		37°C
(100°F)		35°C
(96°F)		32°C
(90°F)		23°C
(74°F)		20°C
(68°F)
Average high15°C
(59°F)		17°C
(64°F)		19°C
(66°F)		20°C
(69°F)		25°C
(77°F)		27°C
(80°F)		29°C
(84°F)		31°C
(87°F)		29°C
(84°F)		25°C
(77°F)		19°C
(66°F)		16°C
(62°F)
Daily mean10°C
(51°F)		12°C
(55°F)		14°C
(57°F)		15°C
(60°F)		19°C
(66°F)		20°C
(69°F)		22°C
(72°F)		23°C
(74°F)		22°C
(71°F)		19°C
(66°F)		14°C
(58°F)		12°C
(54°F)
Average low6°C
(44°F)		8°C
(47°F)		9°C
(49°F)		11°C
(52°F)		13°C
(56°F)		15°C
(59°F)		16°C
(62°F)		17°C
(62°F)		16°C
(61°F)		13°C
(56°F)		10°C
(51°F)		8°C
(47°F)
Mean minimum0°C
(33°F)		4°C
(39°F)		5°C
(41°F)		7°C
(44°F)		9°C
(48°F)		12°C
(54°F)		13°C
(56°F)		14°C
(57°F)		12°C
(54°F)		8°C
(46°F)		5°C
(42°F)		3°C
(37°F)
Minimum-2°C
(29°F)		1°C
(34°F)		3°C
(37°F)		5°C
(42°F)		7°C
(44°F)		9°C
(49°F)		12°C
(54°F)		13°C
(56°F)		10°C
(51°F)		7°C
(44°F)		4°C
(39°F)		0°C
(32°F)

Compare climate in Grandola with other places

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

Monthly average precipitation in Grandola, Portugal

Grandola usually has the most precipitation in March, April and November, with an average of 10 rainy days and 70 mm (2.8 inches) of precipitation per month. The driest months in Grandola 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 Grandola. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)30 (1.2)52 (2.0)81 (3.2)73 (2.9)30 (1.2)9 (0.4)3 (0.1)2 (0.1)18 (0.7)42 (1.6)56 (2.2)49 (1.9)
Average precipitation days (≥ 1 mm)4691252002498

Monthly sunshine hours in Grandola, Portugal

The sunniest months in Grandola are May, June and July, when the sun shines an average of 13 hours 27 minutes a day. Least sunny months in Grandola: 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 Grandola. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours184225297351404407425398348315230217
Mean daily daylight hours9h 49m10h 45m11h 58m13h 12m14h 15m14h 46m14h 30m13h 34m12h 23m11h 9m10h 4m9h 31m

Solar UV radiation in Grandola, Portugal

Grandola 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 Grandola UV Index data.

Average daily maximum UV levels by month for Grandola. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)356910111099643