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Monthly climate in Roa, Viken, Norway

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Roa features a subarctic climate (Dfc).Temperatures typically range between -4 °C (24 °F) and 16 °C (62 °F) through the year, but rarely can drop to -20 °C (-3 °F) or can rise to as high as 31 °C (88 °F).The average annual precipitation amounts to about 1045 mm (41.2 inches) and receives 143 rainy days on the 1 mm (0.04 inches) threshold annually.Roa enjoys an average of 3278 hours of sunshine throughout the year, and daylight varies from 5 hours 55 minutes to 18 hours 47 minutes per day.

Monthly average temperatures in Roa, Viken, Norway §

The warmest months in Roa are June, July and August, with daily mean temperatures ranging from 15 to 16 °C (58 - 62 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -4 to -3 °C (24 - 26 °F) throughout the day. On average each year, Roa experiences 10 days above 25 °C (77.0 °F) and 148 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Roa, Viken, Norway.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 9°C
(49°F)		 8°C
(48°F)		 15°C
(59°F)		 22°C
(72°F)		 28°C
(82°F)		 28°C
(82°F)		 31°C
(88°F)		 27°C
(81°F)		 23°C
(74°F)		 17°C
(62°F)		 13°C
(55°F)		 6°C
(43°F)
Mean maximum 5°C
(42°F)		 6°C
(42°F)		 11°C
(52°F)		 17°C
(63°F)		 23°C
(73°F)		 23°C
(74°F)		 26°C
(80°F)		 24°C
(76°F)		 20°C
(69°F)		 14°C
(57°F)		 9°C
(48°F)		 5°C
(42°F)
Average high -2°C
(29°F)		 -1°C
(31°F)		 3°C
(38°F)		 8°C
(47°F)		 14°C
(57°F)		 19°C
(67°F)		 21°C
(70°F)		 19°C
(66°F)		 14°C
(58°F)		 8°C
(47°F)		 3°C
(38°F)		 -2°C
(30°F)
Daily mean -4°C
(24°F)		 -4°C
(25°F)		 -1°C
(31°F)		 4°C
(39°F)		 9°C
(49°F)		 15°C
(59°F)		 16°C
(62°F)		 15°C
(58°F)		 11°C
(52°F)		 6°C
(42°F)		 1°C
(34°F)		 -3°C
(26°F)
Average low -7°C
(20°F)		 -7°C
(20°F)		 -4°C
(24°F)		 -1°C
(30°F)		 4°C
(40°F)		 10°C
(50°F)		 11°C
(53°F)		 10°C
(51°F)		 7°C
(46°F)		 3°C
(38°F)		 -1°C
(31°F)		 -5°C
(23°F)
Mean minimum -16°C
(3°F)		 -16°C
(3°F)		 -12°C
(10°F)		 -8°C
(18°F)		 -3°C
(27°F)		 5°C
(42°F)		 7°C
(44°F)		 5°C
(42°F)		 3°C
(37°F)		 -3°C
(27°F)		 -9°C
(17°F)		 -13°C
(9°F)
Minimum -20°C
(-3°F)		 -20°C
(-3°F)		 -19°C
(-3°F)		 -13°C
(9°F)		 -5°C
(24°F)		 3°C
(37°F)		 5°C
(42°F)		 4°C
(40°F)		 0°C
(32°F)		 -5°C
(24°F)		 -10°C
(14°F)		 -17°C
(2°F)

Compare climate in Roa with other places

Compare temperature, precipitation, sunshine, UV index in Roa, Viken, Norway with other places around the world.

Monthly average precipitation in Roa, Viken, Norway §

Roa usually has the most precipitation in July, August and October, with an average of 14 rainy days and 112 mm (4.4 inches) of precipitation per month.The driest months in Roa are January, February and April. On average, 53 mm (2.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Roa, Viken, Norway.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) 58 (2.3) 59 (2.3) 63 (2.5) 42 (1.6) 94 (3.7) 95 (3.7) 102 (4.0) 108 (4.2) 102 (4.0) 125 (4.9) 98 (3.8) 101 (4.0)
Average precipitation days (≥ 1 mm) 8 10 9 7 13 12 13 15 13 16 12 15

Monthly sunshine hours in Roa, Viken, Norway §

The sunniest months in Roa are May, June and July, when the sun shines an average of 14 hours 9 minutes a day.Least sunny months in Roa: January, November and December receive an average of 3 hours 16 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Roa, Viken, Norway.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 90 176 288 370 403 434 464 376 259 201 121 90
Mean daily daylight hours 6h 44m 9h 7m 11h 51m 14h 39m 17h 15m 18h 47m 17h 57m 15h 32m 12h 47m 10h 2m 7h 26m 5h 55m

Solar UV radiation in Roa, Viken, Norway §

Roa experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 5 - 7, which corresponds to the Moderate / High category of sun exposure.January, February and November are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 1. For more detailed information, check out our hourly Roa UV Index data.

Average daily maximum UV levels by month for Roa, Viken, Norway.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) 1 1 3 4 5 7 7 5 4 2 1 1