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Monthly climate in Longboat Key, Florida, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Longboat Key features a humid subtropical climate (Cfa).Temperatures typically range between 17 °C (63 °F) and 28 °C (83 °F) through the year, but rarely can drop to 3 °C (38 °F) or can rise to as high as 32 °C (90 °F).The average annual precipitation amounts to about 1146 mm (45.1 inches) and receives 136 rainy days on the 1 mm (0.04 inches) threshold annually.Longboat Key enjoys an average of 3551 hours of sunshine throughout the year, and daylight varies from 10 hours 25 minutes to 13 hours 49 minutes per day.

Monthly average temperatures in Longboat Key, Florida, United States §

The warmest months in Longboat Key are July, August and September, with daily mean temperatures ranging from 27 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 17 to 19 °C (63 - 66 °F) throughout the day. On average each year, Longboat Key experiences 175 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 Longboat Key, 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 24°C
(75°F)		 25°C
(78°F)		 26°C
(79°F)		 28°C
(82°F)		 30°C
(87°F)		 31°C
(89°F)		 32°C
(89°F)		 32°C
(90°F)		 32°C
(90°F)		 31°C
(87°F)		 28°C
(82°F)		 25°C
(77°F)
Mean maximum 23°C
(73°F)		 24°C
(75°F)		 25°C
(77°F)		 27°C
(81°F)		 29°C
(85°F)		 30°C
(87°F)		 31°C
(88°F)		 31°C
(89°F)		 31°C
(88°F)		 30°C
(86°F)		 27°C
(80°F)		 24°C
(76°F)
Average high 19°C
(66°F)		 21°C
(70°F)		 22°C
(72°F)		 24°C
(76°F)		 27°C
(80°F)		 28°C
(84°F)		 29°C
(85°F)		 29°C
(85°F)		 29°C
(85°F)		 28°C
(82°F)		 24°C
(75°F)		 21°C
(70°F)
Daily mean 17°C
(63°F)		 19°C
(66°F)		 20°C
(68°F)		 23°C
(73°F)		 25°C
(77°F)		 27°C
(81°F)		 28°C
(82°F)		 28°C
(83°F)		 27°C
(82°F)		 26°C
(79°F)		 22°C
(71°F)		 19°C
(66°F)
Average low 15°C
(59°F)		 17°C
(63°F)		 18°C
(65°F)		 21°C
(70°F)		 23°C
(75°F)		 26°C
(79°F)		 27°C
(80°F)		 27°C
(80°F)		 26°C
(79°F)		 24°C
(76°F)		 20°C
(68°F)		 17°C
(63°F)
Mean minimum 7°C
(44°F)		 10°C
(51°F)		 11°C
(52°F)		 16°C
(61°F)		 20°C
(69°F)		 24°C
(76°F)		 25°C
(78°F)		 25°C
(78°F)		 24°C
(76°F)		 20°C
(68°F)		 14°C
(58°F)		 11°C
(52°F)
Minimum 3°C
(38°F)		 9°C
(49°F)		 8°C
(47°F)		 13°C
(55°F)		 18°C
(65°F)		 24°C
(75°F)		 25°C
(77°F)		 25°C
(77°F)		 24°C
(75°F)		 15°C
(60°F)		 12°C
(55°F)		 8°C
(46°F)

Compare climate in Longboat Key with other places

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

Monthly average precipitation in Longboat Key, Florida, United States §

Longboat Key usually has the most precipitation in June, July and August, with an average of 22 rainy days and 185 mm (7.3 inches) of precipitation per month.The driest months in Longboat Key are January, February and March. On average, 35 mm (1.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Longboat Key, 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) 38 (1.5) 44 (1.7) 22 (0.9) 55 (2.2) 101 (4.0) 168 (6.6) 180 (7.1) 208 (8.2) 152 (6.0) 67 (2.7) 47 (1.8) 64 (2.5)
Average precipitation days (≥ 1 mm) 4 5 3 6 10 19 24 25 18 10 6 6

Monthly sunshine hours in Longboat Key, Florida, United States §

The sunniest months in Longboat Key are March, April and May, when the sun shines an average of 10 hours 35 minutes a day.Least sunny months in Longboat Key: January, February and December receive an average of 8 hours 15 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Longboat Key, 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 216 265 320 318 334 303 318 315 310 299 278 269
Mean daily daylight hours 10h 37m 11h 13m 12h 0m 12h 49m 13h 30m 13h 49m 13h 39m 13h 3m 12h 16m 11h 28m 10h 46m 10h 25m

Solar UV radiation in Longboat Key, Florida, United States §

Longboat Key experiences the highest level of ultraviolet (UV) radiation in April, June and July, 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 7. For more detailed information, check out our hourly Longboat Key UV Index data.

Average daily maximum UV levels by month for Longboat Key, 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 11 11 9 7 5