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Monthly climate in Bluffton, South Carolina, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Bluffton features a humid subtropical climate (Cfa).Temperatures typically range between 11 °C (53 °F) and 28 °C (82 °F) through the year, but rarely can drop to -5 °C (23 °F) or can rise to as high as 35 °C (95 °F).The average annual precipitation amounts to about 1271 mm (50.0 inches) and receives 145 rainy days on the 1 mm (0.04 inches) threshold annually.Bluffton enjoys an average of 3388 hours of sunshine throughout the year, and daylight varies from 10 hours 3 minutes to 14 hours 12 minutes per day.

Monthly average temperatures in Bluffton, South Carolina, United States §

The warmest months in Bluffton are June, July and August, with daily mean temperatures ranging from 26 to 28 °C (79 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 11 to 14 °C (53 - 57 °F) throughout the day. On average each year, Bluffton experiences 148 days above 25 °C (77.0 °F) and 2 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Bluffton, 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 24°C
(75°F)		 25°C
(77°F)		 27°C
(81°F)		 30°C
(87°F)		 34°C
(94°F)		 34°C
(93°F)		 35°C
(95°F)		 34°C
(94°F)		 34°C
(93°F)		 31°C
(89°F)		 28°C
(82°F)		 23°C
(73°F)
Mean maximum 22°C
(72°F)		 23°C
(74°F)		 25°C
(78°F)		 27°C
(82°F)		 31°C
(88°F)		 32°C
(90°F)		 33°C
(92°F)		 33°C
(91°F)		 32°C
(90°F)		 30°C
(86°F)		 26°C
(79°F)		 22°C
(72°F)
Average high 15°C
(59°F)		 17°C
(64°F)		 20°C
(67°F)		 23°C
(73°F)		 26°C
(80°F)		 29°C
(84°F)		 30°C
(87°F)		 30°C
(86°F)		 29°C
(84°F)		 26°C
(79°F)		 19°C
(67°F)		 16°C
(62°F)
Daily mean 11°C
(53°F)		 14°C
(57°F)		 16°C
(61°F)		 19°C
(67°F)		 23°C
(74°F)		 26°C
(79°F)		 28°C
(82°F)		 27°C
(82°F)		 26°C
(79°F)		 23°C
(73°F)		 16°C
(61°F)		 13°C
(55°F)
Average low 8°C
(47°F)		 11°C
(51°F)		 12°C
(55°F)		 16°C
(61°F)		 21°C
(70°F)		 24°C
(75°F)		 25°C
(78°F)		 25°C
(78°F)		 24°C
(75°F)		 20°C
(68°F)		 12°C
(54°F)		 10°C
(50°F)
Mean minimum -1°C
(31°F)		 3°C
(37°F)		 3°C
(37°F)		 8°C
(47°F)		 14°C
(57°F)		 20°C
(68°F)		 23°C
(74°F)		 23°C
(74°F)		 19°C
(67°F)		 12°C
(53°F)		 5°C
(41°F)		 2°C
(37°F)
Minimum -5°C
(23°F)		 1°C
(33°F)		 1°C
(34°F)		 6°C
(43°F)		 12°C
(53°F)		 18°C
(64°F)		 23°C
(73°F)		 22°C
(73°F)		 16°C
(61°F)		 6°C
(42°F)		 1°C
(35°F)		 -1°C
(30°F)

Compare climate in Bluffton with other places

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

Monthly average precipitation in Bluffton, South Carolina, United States §

Bluffton usually has the most precipitation in July, August and September, with an average of 18 rainy days and 154 mm (6.1 inches) of precipitation per month.The driest months in Bluffton are January, February and March. On average, 70 mm (2.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Bluffton, 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) 61 (2.4) 80 (3.1) 68 (2.7) 85 (3.4) 89 (3.5) 122 (4.8) 156 (6.1) 180 (7.1) 127 (5.0) 88 (3.5) 90 (3.5) 125 (4.9)
Average precipitation days (≥ 1 mm) 7 11 6 8 10 18 19 22 15 11 8 10

Monthly sunshine hours in Bluffton, South Carolina, United States §

The sunniest months in Bluffton are May, June and July, when the sun shines an average of 10 hours 55 minutes a day.Least sunny months in Bluffton: January, February and December receive an average of 6 hours 51 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Bluffton, 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 191 213 282 308 337 320 347 318 304 293 252 218
Mean daily daylight hours 10h 17m 11h 2m 12h 0m 12h 59m 13h 48m 14h 12m 13h 59m 13h 15m 12h 19m 11h 20m 10h 29m 10h 3m

Solar UV radiation in Bluffton, South Carolina, United States §

Bluffton experiences the highest level of ultraviolet (UV) radiation in May, July and August, 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 Bluffton UV Index data.

Average daily maximum UV levels by month for Bluffton, 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 11 11 10 8 6 4