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Monthly climate in Oak Island, North Carolina, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Oak Island features a humid subtropical climate (Cfa).Temperatures typically range between 10 °C (50 °F) and 27 °C (81 °F) through the year, but rarely can drop to -7 °C (20 °F) or can rise to as high as 33 °C (91 °F).The average annual precipitation amounts to about 1490 mm (58.7 inches) and receives 138 rainy days on the 1 mm (0.04 inches) threshold annually.Oak Island enjoys an average of 3315 hours of sunshine throughout the year, and daylight varies from 9 hours 55 minutes to 14 hours 21 minutes per day.

Monthly average temperatures in Oak Island, North Carolina, United States §

The warmest months in Oak Island are June, July and August, with daily mean temperatures ranging from 25 to 27 °C (78 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 10 to 12 °C (50 - 53 °F) throughout the day. On average each year, Oak Island experiences 125 days above 25 °C (77.0 °F) and 6 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Oak Island, North Carolina, United States.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 22°C
(71°F)		 22°C
(71°F)		 24°C
(75°F)		 27°C
(80°F)		 33°C
(91°F)		 32°C
(90°F)		 32°C
(89°F)		 32°C
(90°F)		 32°C
(90°F)		 31°C
(87°F)		 26°C
(79°F)		 23°C
(73°F)
Mean maximum 20°C
(68°F)		 21°C
(69°F)		 22°C
(72°F)		 25°C
(78°F)		 29°C
(85°F)		 30°C
(87°F)		 31°C
(88°F)		 31°C
(89°F)		 31°C
(88°F)		 29°C
(84°F)		 24°C
(76°F)		 21°C
(70°F)
Average high 13°C
(56°F)		 15°C
(59°F)		 17°C
(63°F)		 21°C
(70°F)		 25°C
(77°F)		 28°C
(82°F)		 29°C
(85°F)		 29°C
(84°F)		 28°C
(82°F)		 24°C
(76°F)		 18°C
(65°F)		 15°C
(59°F)
Daily mean 10°C
(50°F)		 12°C
(53°F)		 13°C
(57°F)		 18°C
(64°F)		 22°C
(72°F)		 25°C
(78°F)		 27°C
(81°F)		 27°C
(80°F)		 25°C
(77°F)		 21°C
(71°F)		 15°C
(58°F)		 12°C
(53°F)
Average low 6°C
(44°F)		 8°C
(47°F)		 10°C
(50°F)		 14°C
(58°F)		 20°C
(67°F)		 23°C
(74°F)		 25°C
(77°F)		 25°C
(77°F)		 23°C
(73°F)		 19°C
(66°F)		 11°C
(52°F)		 8°C
(47°F)
Mean minimum -3°C
(27°F)		 0°C
(33°F)		 1°C
(34°F)		 6°C
(43°F)		 11°C
(53°F)		 18°C
(65°F)		 21°C
(70°F)		 21°C
(71°F)		 18°C
(64°F)		 10°C
(51°F)		 3°C
(38°F)		 1°C
(33°F)
Minimum -7°C
(20°F)		 -1°C
(30°F)		 -1°C
(31°F)		 3°C
(38°F)		 10°C
(51°F)		 14°C
(58°F)		 20°C
(68°F)		 19°C
(67°F)		 14°C
(57°F)		 7°C
(44°F)		 1°C
(34°F)		 -2°C
(29°F)

Compare climate in Oak Island with other places

Compare temperature, precipitation, sunshine, UV index in Oak Island, North Carolina, United States with other places around the world.

Monthly average precipitation in Oak Island, North Carolina, United States §

Oak Island usually has the most precipitation in July, August and September, with an average of 16 rainy days and 187 mm (7.4 inches) of precipitation per month.The driest months in Oak Island are January, March and October. On average, 73 mm (2.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Oak Island, North Carolina, United States.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) 76 (3.0) 108 (4.3) 76 (3.0) 97 (3.8) 118 (4.6) 138 (5.4) 164 (6.4) 202 (7.9) 197 (7.7) 68 (2.7) 107 (4.2) 139 (5.5)
Average precipitation days (≥ 1 mm) 9 10 9 8 9 16 16 20 12 9 10 10

Monthly sunshine hours in Oak Island, North Carolina, United States §

The sunniest months in Oak Island are May, June and July, when the sun shines an average of 10 hours 46 minutes a day.Least sunny months in Oak Island: January, February and December receive an average of 6 hours 33 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Oak Island, North Carolina, United States.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 181 205 272 308 337 317 336 316 296 291 240 210
Mean daily daylight hours 10h 10m 10h 58m 11h 59m 13h 2m 13h 55m 14h 21m 14h 7m 13h 20m 12h 20m 11h 17m 10h 22m 9h 55m

Solar UV radiation in Oak Island, North Carolina, United States §

Oak Island experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 11 - 11, which corresponds to the Extreme category of sun exposure.January, November and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Oak Island UV Index data.

Average daily maximum UV levels by month for Oak Island, North Carolina, United States.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) 4 7 8 10 11 11 11 10 9 8 6 4