Monthly climate in Silveira, Portugal

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Silveira features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 11 °C (52 °F) and 20 °C (69 °F) through the year, but rarely can drop to 2 °C (35 °F) or can rise to as high as 36 °C (97 °F). The average annual precipitation amounts to about 555 mm (21.8 inches) and receives 77 rainy days on the 1 mm (0.04 inches) threshold annually. Silveira enjoys an average of 3810 hours of sunshine throughout the year, and daylight varies from 9 hours 28 minutes to 14 hours 50 minutes per day.

Monthly average temperatures in Silveira, Portugal

The warmest months in Silveira are July, August and September, with daily mean temperatures ranging from 20 to 20 °C (68 - 69 °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, Silveira experiences 33 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 Silveira. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum19°C
(67°F)
22°C
(72°F)
24°C
(76°F)
24°C
(76°F)
32°C
(89°F)
33°C
(93°F)
33°C
(91°F)
36°C
(97°F)
31°C
(88°F)
29°C
(85°F)
23°C
(73°F)
18°C
(65°F)
Mean maximum17°C
(63°F)
20°C
(67°F)
22°C
(71°F)
22°C
(73°F)
27°C
(81°F)
28°C
(83°F)
30°C
(86°F)
30°C
(86°F)
29°C
(85°F)
26°C
(80°F)
21°C
(70°F)
18°C
(64°F)
Average high14°C
(57°F)
16°C
(60°F)
16°C
(62°F)
18°C
(64°F)
21°C
(69°F)
22°C
(72°F)
24°C
(75°F)
25°C
(77°F)
24°C
(76°F)
21°C
(71°F)
17°C
(63°F)
15°C
(60°F)
Daily mean11°C
(52°F)
12°C
(55°F)
13°C
(56°F)
14°C
(58°F)
17°C
(63°F)
18°C
(65°F)
20°C
(68°F)
20°C
(69°F)
20°C
(68°F)
18°C
(64°F)
14°C
(58°F)
13°C
(55°F)
Average low8°C
(48°F)
10°C
(50°F)
10°C
(51°F)
12°C
(54°F)
14°C
(57°F)
15°C
(60°F)
17°C
(63°F)
17°C
(63°F)
17°C
(62°F)
15°C
(59°F)
12°C
(54°F)
10°C
(51°F)
Mean minimum4°C
(39°F)
6°C
(44°F)
7°C
(45°F)
8°C
(47°F)
11°C
(51°F)
14°C
(57°F)
15°C
(59°F)
16°C
(60°F)
14°C
(58°F)
11°C
(52°F)
8°C
(47°F)
6°C
(44°F)
Minimum2°C
(35°F)
4°C
(40°F)
6°C
(44°F)
7°C
(45°F)
9°C
(49°F)
12°C
(54°F)
14°C
(58°F)
15°C
(60°F)
12°C
(54°F)
9°C
(49°F)
7°C
(46°F)
5°C
(41°F)

Compare climate in Silveira with other places

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

Monthly average precipitation in Silveira, Portugal

Silveira usually has the most precipitation in March, April and November, with an average of 11 rainy days and 80 mm (3.2 inches) of precipitation per month. The driest months in Silveira are June, July and August. On average, 8 mm (0.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Silveira. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)42 (1.6)55 (2.2)70 (2.8)82 (3.2)42 (1.7)14 (0.5)6 (0.3)4 (0.2)30 (1.2)53 (2.1)88 (3.5)68 (2.7)
Average precipitation days (≥ 1 mm)689134411361210

Monthly sunshine hours in Silveira, Portugal

The sunniest months in Silveira are May, June and July, when the sun shines an average of 13 hours 27 minutes a day. Least sunny months in Silveira: 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 Silveira. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours180227305351407409420394349312232218
Mean daily daylight hours9h 46m10h 44m11h 58m13h 14m14h 18m14h 50m14h 33m13h 36m12h 23m11h 8m10h 2m9h 28m

Solar UV radiation in Silveira, Portugal

Silveira 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 Silveira UV Index data.

Average daily maximum UV levels by month for Silveira. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)356910111098643