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Monthly climate in Sebastian, Florida, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Sebastian features a humid subtropical climate (Cfa).Temperatures typically range between 19 °C (66 °F) and 28 °C (83 °F) through the year, but rarely can drop to 1 °C (35 °F) or can rise to as high as 36 °C (96 °F).The average annual precipitation amounts to about 1401 mm (55.2 inches) and receives 180 rainy days on the 1 mm (0.04 inches) threshold annually.Sebastian enjoys an average of 3524 hours of sunshine throughout the year, and daylight varies from 10 hours 24 minutes to 13 hours 51 minutes per day.

Monthly average temperatures in Sebastian, Florida, United States §

The warmest months in Sebastian are July, August and September, with daily mean temperatures ranging from 28 to 28 °C (82 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 19 to 21 °C (66 - 70 °F) throughout the day. On average each year, Sebastian experiences 263 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sebastian, Florida, 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 31°C
(87°F)		 31°C
(88°F)		 34°C
(94°F)		 36°C
(96°F)		 35°C
(96°F)		 35°C
(96°F)		 35°C
(95°F)		 34°C
(94°F)		 35°C
(95°F)		 33°C
(92°F)		 32°C
(89°F)		 32°C
(89°F)
Mean maximum 29°C
(85°F)		 30°C
(87°F)		 32°C
(89°F)		 33°C
(92°F)		 33°C
(92°F)		 34°C
(93°F)		 34°C
(94°F)		 34°C
(93°F)		 34°C
(93°F)		 32°C
(91°F)		 30°C
(86°F)		 30°C
(86°F)
Average high 23°C
(73°F)		 26°C
(78°F)		 26°C
(79°F)		 28°C
(83°F)		 30°C
(86°F)		 31°C
(88°F)		 32°C
(90°F)		 32°C
(90°F)		 31°C
(89°F)		 30°C
(86°F)		 26°C
(79°F)		 24°C
(76°F)
Daily mean 19°C
(66°F)		 21°C
(70°F)		 22°C
(71°F)		 24°C
(75°F)		 26°C
(79°F)		 27°C
(82°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(82°F)		 26°C
(80°F)		 22°C
(73°F)		 20°C
(68°F)
Average low 14°C
(58°F)		 17°C
(63°F)		 17°C
(64°F)		 20°C
(68°F)		 22°C
(73°F)		 25°C
(77°F)		 25°C
(78°F)		 26°C
(78°F)		 25°C
(78°F)		 24°C
(75°F)		 19°C
(67°F)		 16°C
(61°F)
Mean minimum 5°C
(41°F)		 7°C
(45°F)		 9°C
(48°F)		 13°C
(56°F)		 18°C
(65°F)		 23°C
(73°F)		 24°C
(75°F)		 24°C
(76°F)		 23°C
(73°F)		 17°C
(63°F)		 12°C
(53°F)		 7°C
(45°F)
Minimum 1°C
(35°F)		 3°C
(38°F)		 6°C
(44°F)		 11°C
(53°F)		 15°C
(59°F)		 22°C
(72°F)		 23°C
(74°F)		 24°C
(75°F)		 21°C
(70°F)		 10°C
(50°F)		 6°C
(43°F)		 5°C
(41°F)

Compare climate in Sebastian with other places

Compare temperature, precipitation, sunshine, UV index in Sebastian, Florida, United States with other places around the world.

Monthly average precipitation in Sebastian, Florida, United States §

Sebastian usually has the most precipitation in June, July and August, with an average of 27 rainy days and 237 mm (9.3 inches) of precipitation per month.The driest months in Sebastian are January, March and December. On average, 34 mm (1.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sebastian, Florida, 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) 33 (1.3) 49 (1.9) 23 (0.9) 69 (2.7) 123 (4.9) 215 (8.4) 246 (9.7) 250 (9.8) 181 (7.1) 110 (4.3) 56 (2.2) 48 (1.9)
Average precipitation days (≥ 1 mm) 5 8 4 9 14 25 28 28 23 17 12 7

Monthly sunshine hours in Sebastian, Florida, United States §

The sunniest months in Sebastian are April, July and August, when the sun shines an average of 10 hours 41 minutes a day.Least sunny months in Sebastian: January, February and November receive an average of 8 hours 6 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sebastian, Florida, 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 208 259 314 317 315 301 335 331 310 297 262 270
Mean daily daylight hours 10h 35m 11h 12m 12h 0m 12h 50m 13h 31m 13h 51m 13h 40m 13h 4m 12h 16m 11h 27m 10h 45m 10h 24m

Solar UV radiation in Sebastian, Florida, United States §

Sebastian experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 12 - 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 7. For more detailed information, check out our hourly Sebastian UV Index data.

Average daily maximum UV levels by month for Sebastian, Florida, 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) 6 8 10 11 11 12 12 12 11 9 7 5