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Monthly climate in Nelas, Viseu, Portugal

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Nelas features a warm-summer Mediterranean climate (Csb).Temperatures typically range between 6 °C (44 °F) and 21 °C (71 °F) through the year, but rarely can drop to -4 °C (26 °F) or can rise to as high as 38 °C (100 °F).The average annual precipitation amounts to about 964 mm (37.9 inches) and receives 105 rainy days on the 1 mm (0.04 inches) threshold annually.Nelas enjoys an average of 3677 hours of sunshine throughout the year, and daylight varies from 9 hours 19 minutes to 14 hours 59 minutes per day.

Monthly average temperatures in Nelas, Viseu, Portugal §

The warmest months in Nelas are July, August and September, with daily mean temperatures ranging from 19 to 21 °C (67 - 71 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 6 to 9 °C (44 - 48 °F) throughout the day. On average each year, Nelas experiences 73 days above 25 °C (77.0 °F) and 10 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Nelas, Viseu, Portugal.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 17°C
(63°F)		 22°C
(71°F)		 24°C
(76°F)		 25°C
(78°F)		 30°C
(87°F)		 36°C
(98°F)		 35°C
(96°F)		 38°C
(100°F)		 33°C
(92°F)		 31°C
(87°F)		 21°C
(69°F)		 17°C
(62°F)
Mean maximum 15°C
(60°F)		 19°C
(66°F)		 21°C
(70°F)		 24°C
(75°F)		 28°C
(83°F)		 31°C
(87°F)		 33°C
(92°F)		 35°C
(95°F)		 32°C
(89°F)		 27°C
(81°F)		 18°C
(66°F)		 16°C
(60°F)
Average high 11°C
(52°F)		 13°C
(56°F)		 14°C
(58°F)		 17°C
(62°F)		 21°C
(70°F)		 24°C
(75°F)		 28°C
(82°F)		 28°C
(83°F)		 25°C
(78°F)		 20°C
(69°F)		 14°C
(57°F)		 12°C
(53°F)
Daily mean 6°C
(44°F)		 9°C
(48°F)		 10°C
(50°F)		 12°C
(54°F)		 16°C
(61°F)		 18°C
(65°F)		 21°C
(70°F)		 21°C
(71°F)		 19°C
(67°F)		 15°C
(59°F)		 10°C
(50°F)		 8°C
(47°F)
Average low 3°C
(37°F)		 5°C
(41°F)		 6°C
(42°F)		 8°C
(46°F)		 10°C
(51°F)		 13°C
(55°F)		 15°C
(60°F)		 15°C
(60°F)		 14°C
(57°F)		 10°C
(51°F)		 7°C
(44°F)		 5°C
(41°F)
Mean minimum -2°C
(29°F)		 -0°C
(32°F)		 1°C
(34°F)		 1°C
(35°F)		 4°C
(40°F)		 8°C
(47°F)		 10°C
(50°F)		 10°C
(50°F)		 9°C
(49°F)		 4°C
(40°F)		 1°C
(34°F)		 -0°C
(32°F)
Minimum -4°C
(26°F)		 -2°C
(28°F)		 -0°C
(32°F)		 -1°C
(30°F)		 2°C
(35°F)		 6°C
(43°F)		 8°C
(47°F)		 9°C
(48°F)		 6°C
(44°F)		 0°C
(33°F)		 -3°C
(27°F)		 -2°C
(28°F)

Compare climate in Nelas with other places

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

Monthly average precipitation in Nelas, Viseu, Portugal §

Nelas usually has the most precipitation in March, November and December, with an average of 12 rainy days and 134 mm (5.3 inches) of precipitation per month.The driest months in Nelas are June, July and August. On average, 23 mm (0.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Nelas, Viseu, Portugal.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 68 (2.7) 110 (4.3) 133 (5.2) 125 (4.9) 56 (2.2) 39 (1.5) 12 (0.5) 17 (0.7) 43 (1.7) 94 (3.7) 132 (5.2) 136 (5.4)
Average precipitation days (≥ 1 mm) 7 10 10 15 9 9 3 3 5 8 13 13

Monthly sunshine hours in Nelas, Viseu, Portugal §

The sunniest months in Nelas are May, June and July, when the sun shines an average of 13 hours 26 minutes a day.Least sunny months in Nelas: January, November and December receive an average of 6 hours 1 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Nelas, Viseu, Portugal.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 161 210 283 338 402 404 429 402 345 306 209 183
Mean daily daylight hours 9h 38m 10h 39m 11h 57m 13h 18m 14h 25m 14h 59m 14h 41m 13h 41m 12h 24m 11h 5m 9h 55m 9h 19m

Solar UV radiation in Nelas, Viseu, Portugal §

Nelas 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, 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 Nelas UV Index data.

Average daily maximum UV levels by month for Nelas, Viseu, Portugal.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 3 4 6 9 10 11 10 9 8 6 4 3