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Monthly climate in Isle of Palms, South Carolina, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Isle of Palms features a humid subtropical climate (Cfa).Temperatures typically range between 12 °C (53 °F) and 27 °C (81 °F) through the year, but rarely can drop to -5 °C (24 °F) or can rise to as high as 32 °C (90 °F).The average annual precipitation amounts to about 1434 mm (56.4 inches) and receives 138 rainy days on the 1 mm (0.04 inches) threshold annually.Isle of Palms enjoys an average of 3403 hours of sunshine throughout the year, and daylight varies from 10 hours 1 minutes to 14 hours 15 minutes per day.

Monthly average temperatures in Isle of Palms, South Carolina, United States §

The warmest months in Isle of Palms are July, August and September, with daily mean temperatures ranging from 26 to 27 °C (79 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 12 to 14 °C (53 - 57 °F) throughout the day. On average each year, Isle of Palms experiences 125 days above 25 °C (77.0 °F) and 1 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Isle of Palms, South 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 21°C
(70°F)		 21°C
(70°F)		 23°C
(74°F)		 27°C
(81°F)		 31°C
(89°F)		 32°C
(90°F)		 32°C
(89°F)		 31°C
(89°F)		 32°C
(90°F)		 29°C
(85°F)		 26°C
(79°F)		 22°C
(72°F)
Mean maximum 20°C
(68°F)		 20°C
(68°F)		 22°C
(71°F)		 25°C
(76°F)		 28°C
(83°F)		 30°C
(86°F)		 31°C
(87°F)		 31°C
(88°F)		 30°C
(87°F)		 28°C
(82°F)		 24°C
(76°F)		 21°C
(70°F)
Average high 14°C
(58°F)		 16°C
(61°F)		 18°C
(64°F)		 21°C
(70°F)		 25°C
(77°F)		 27°C
(81°F)		 29°C
(84°F)		 29°C
(84°F)		 27°C
(82°F)		 25°C
(76°F)		 19°C
(66°F)		 16°C
(61°F)
Daily mean 12°C
(53°F)		 14°C
(57°F)		 15°C
(60°F)		 19°C
(66°F)		 23°C
(74°F)		 26°C
(79°F)		 27°C
(81°F)		 27°C
(81°F)		 26°C
(79°F)		 23°C
(73°F)		 16°C
(62°F)		 13°C
(56°F)
Average low 9°C
(49°F)		 11°C
(53°F)		 13°C
(56°F)		 17°C
(63°F)		 21°C
(71°F)		 24°C
(76°F)		 26°C
(79°F)		 26°C
(79°F)		 24°C
(76°F)		 21°C
(70°F)		 14°C
(57°F)		 11°C
(52°F)
Mean minimum 0°C
(33°F)		 4°C
(39°F)		 5°C
(40°F)		 9°C
(48°F)		 14°C
(58°F)		 20°C
(69°F)		 23°C
(74°F)		 23°C
(75°F)		 20°C
(69°F)		 13°C
(56°F)		 7°C
(44°F)		 4°C
(39°F)
Minimum -5°C
(24°F)		 2°C
(36°F)		 2°C
(36°F)		 6°C
(42°F)		 12°C
(55°F)		 18°C
(64°F)		 22°C
(72°F)		 23°C
(73°F)		 16°C
(61°F)		 7°C
(46°F)		 3°C
(38°F)		 0°C
(33°F)

Compare climate in Isle of Palms with other places

Compare temperature, precipitation, sunshine, UV index in Isle of Palms, South Carolina, United States with other places around the world.

Monthly average precipitation in Isle of Palms, South Carolina, United States §

Isle of Palms usually has the most precipitation in July, August and September, with an average of 17 rainy days and 185 mm (7.3 inches) of precipitation per month.The driest months in Isle of Palms are January, March and May. On average, 70 mm (2.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Isle of Palms, South 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) 66 (2.6) 91 (3.6) 62 (2.4) 105 (4.1) 82 (3.2) 144 (5.7) 171 (6.7) 197 (7.8) 188 (7.4) 85 (3.4) 103 (4.1) 141 (5.6)
Average precipitation days (≥ 1 mm) 8 11 7 8 8 17 16 21 14 10 8 10

Monthly sunshine hours in Isle of Palms, South Carolina, United States §

The sunniest months in Isle of Palms are May, June and July, when the sun shines an average of 11 hours 0 minutes a day.Least sunny months in Isle of Palms: January, February and December receive an average of 6 hours 54 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Isle of Palms, South 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 190 217 281 312 341 325 345 321 304 293 247 220
Mean daily daylight hours 10h 15m 11h 1m 12h 0m 13h 0m 13h 50m 14h 15m 14h 2m 13h 17m 12h 19m 11h 19m 10h 27m 10h 1m

Solar UV radiation in Isle of Palms, South Carolina, United States §

Isle of Palms experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 11 - 12, 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 Isle of Palms UV Index data.

Average daily maximum UV levels by month for Isle of Palms, South 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 9 10 11 11 12 11 9 8 6 4