Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Orkney features a cold semi-arid climate (BSk).Temperatures typically range between 10 °C (51 °F) and 23 °C (74 °F) through the year, but rarely can drop to -5 °C (23 °F) or can rise to as high as 38 °C (101 °F).The average annual precipitation amounts to about 573 mm (22.6 inches) and receives 79 rainy days on the 1 mm (0.04 inches) threshold annually.Orkney enjoys an average of 4066 hours of sunshine throughout the year, and daylight varies from 10 hours 27 minutes to 13 hours 47 minutes per day.
The warmest months in Orkney are January, November and December, with daily mean temperatures ranging from 22 to 23 °C (73 - 74 °F) throughout the day. The coldest temperatures usually occur in May, June and July, when daily mean temperatures range from 10 to 14 °C (51 - 58 °F) throughout the day. On average each year, Orkney experiences 203 days above 25 °C (77.0 °F) and 11 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 37°C (100°F) | 35°C (95°F) | 35°C (95°F) | 32°C (91°F) | 29°C (84°F) | 28°C (83°F) | 27°C (80°F) | 30°C (87°F) | 34°C (94°F) | 37°C (98°F) | 37°C (99°F) | 38°C (101°F) |
Mean maximum | 34°C (94°F) | 33°C (91°F) | 32°C (90°F) | 31°C (87°F) | 27°C (81°F) | 24°C (76°F) | 26°C (79°F) | 29°C (84°F) | 34°C (93°F) | 35°C (96°F) | 36°C (97°F) | 35°C (95°F) |
Average high | 30°C (86°F) | 29°C (84°F) | 28°C (83°F) | 25°C (78°F) | 23°C (74°F) | 21°C (70°F) | 20°C (69°F) | 24°C (75°F) | 28°C (83°F) | 29°C (85°F) | 30°C (87°F) | 30°C (86°F) |
Daily mean | 23°C (74°F) | 22°C (73°F) | 21°C (70°F) | 18°C (64°F) | 14°C (58°F) | 11°C (52°F) | 10°C (51°F) | 14°C (58°F) | 19°C (66°F) | 21°C (70°F) | 22°C (73°F) | 23°C (74°F) |
Average low | 18°C (64°F) | 17°C (63°F) | 15°C (59°F) | 11°C (53°F) | 6°C (44°F) | 3°C (38°F) | 2°C (36°F) | 6°C (43°F) | 10°C (49°F) | 13°C (55°F) | 15°C (59°F) | 17°C (62°F) |
Mean minimum | 13°C (56°F) | 14°C (57°F) | 11°C (52°F) | 5°C (42°F) | 2°C (36°F) | -2°C (29°F) | -3°C (26°F) | -1°C (30°F) | 1°C (34°F) | 5°C (42°F) | 8°C (47°F) | 12°C (54°F) |
Minimum | 12°C (53°F) | 12°C (54°F) | 10°C (50°F) | 4°C (39°F) | -1°C (30°F) | -5°C (23°F) | -5°C (24°F) | -4°C (26°F) | -1°C (31°F) | 5°C (41°F) | 4°C (40°F) | 10°C (50°F) |
Compare temperature, precipitation, sunshine, UV index in Orkney, North-West, South Africa with other places around the world.
Orkney usually has the most precipitation in January, February and December, with an average of 13 rainy days and 107 mm (4.2 inches) of precipitation per month.The driest months in Orkney are May, July and August. On average, 4 mm (0.2 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 94 (3.7) | 104 (4.1) | 53 (2.1) | 59 (2.3) | 6 (0.2) | 8 (0.3) | 2 (0.1) | 4 (0.2) | 6 (0.2) | 40 (1.6) | 74 (2.9) | 123 (4.8) |
Average precipitation days (≥ 1 mm) | 12 | 14 | 9 | 10 | 1 | 0 | 0 | 1 | 2 | 6 | 9 | 15 |
The sunniest months in Orkney are October, November and December, when the sun shines an average of 12 hours 22 minutes a day.Least sunny months in Orkney: January, June and July receive an average of 10 hours 4 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 313 | 329 | 360 | 320 | 320 | 299 | 314 | 330 | 339 | 372 | 378 | 387 |
Mean daily daylight hours | 13h 36m | 12h 59m | 12h 12m | 11h 24m | 10h 46m | 10h 27m | 10h 36m | 11h 11m | 11h 56m | 12h 43m | 13h 26m | 13h 47m |
Orkney experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 15 - 16, which corresponds to the Extreme category of sun exposure.May, June and July are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 7. For more detailed information, check out our hourly Orkney UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
UV Index (month maximum) | 16 | 15 | 13 | 11 | 7 | 5 | 6 | 8 | 11 | 13 | 15 | 16 |