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Monthly climate in Kailua-Kona, Hawaii, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Kailua-Kona features a oceanic climate (Cfb).Temperatures typically range between 21 °C (70 °F) and 24 °C (75 °F) through the year, but rarely can drop to 15 °C (60 °F) or can rise to as high as 28 °C (83 °F).The average annual precipitation amounts to about 3013 mm (118.6 inches) and receives 293 rainy days on the 1 mm (0.04 inches) threshold annually.Kailua-Kona enjoys an average of 3530 hours of sunshine throughout the year, and daylight varies from 10 hours 57 minutes to 13 hours 17 minutes per day.

Monthly average temperatures in Kailua-Kona, Hawaii, United States §

The warmest months in Kailua-Kona are August, September and October, with daily mean temperatures ranging from 23 to 24 °C (75 - 75 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 21 to 21 °C (70 - 71 °F) throughout the day. On average each year, Kailua-Kona experiences 71 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 Kailua-Kona, Hawaii, 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 26°C
(80°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 26°C
(79°F)		 26°C
(80°F)		 27°C
(81°F)		 28°C
(83°F)		 28°C
(82°F)		 27°C
(81°F)		 26°C
(80°F)		 26°C
(80°F)
Mean maximum 25°C
(77°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 25°C
(78°F)		 25°C
(78°F)		 26°C
(80°F)		 27°C
(80°F)		 27°C
(81°F)		 26°C
(80°F)		 26°C
(79°F)		 26°C
(79°F)
Average high 23°C
(74°F)		 23°C
(73°F)		 23°C
(74°F)		 23°C
(74°F)		 24°C
(75°F)		 24°C
(76°F)		 25°C
(77°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(77°F)		 25°C
(77°F)		 24°C
(75°F)
Daily mean 21°C
(70°F)		 21°C
(70°F)		 21°C
(71°F)		 22°C
(71°F)		 22°C
(72°F)		 23°C
(73°F)		 23°C
(74°F)		 24°C
(75°F)		 24°C
(75°F)		 23°C
(75°F)		 23°C
(74°F)		 22°C
(72°F)
Average low 20°C
(68°F)		 19°C
(67°F)		 20°C
(68°F)		 20°C
(69°F)		 21°C
(70°F)		 21°C
(71°F)		 22°C
(72°F)		 22°C
(73°F)		 22°C
(73°F)		 22°C
(72°F)		 21°C
(71°F)		 20°C
(69°F)
Mean minimum 18°C
(65°F)		 17°C
(64°F)		 18°C
(65°F)		 19°C
(67°F)		 19°C
(67°F)		 20°C
(69°F)		 21°C
(70°F)		 21°C
(71°F)		 21°C
(70°F)		 21°C
(69°F)		 20°C
(68°F)		 18°C
(65°F)
Minimum 17°C
(63°F)		 15°C
(60°F)		 17°C
(63°F)		 18°C
(65°F)		 19°C
(66°F)		 20°C
(68°F)		 20°C
(68°F)		 21°C
(70°F)		 20°C
(68°F)		 20°C
(67°F)		 19°C
(66°F)		 18°C
(64°F)

Compare climate in Kailua-Kona with other places

Compare temperature, precipitation, sunshine, UV index in Kailua-Kona, Hawaii, United States with other places around the world.

Monthly average precipitation in Kailua-Kona, Hawaii, United States §

Kailua-Kona usually has the most precipitation in June, July and August, with an average of 29 rainy days and 403 mm (15.9 inches) of precipitation per month.The driest months in Kailua-Kona are January, March and November. On average, 135 mm (5.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Kailua-Kona, Hawaii, 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) 133 (5.3) 149 (5.9) 129 (5.1) 212 (8.4) 331 (13.1) 365 (14.4) 387 (15.2) 458 (18.0) 286 (11.3) 230 (9.0) 143 (5.6) 188 (7.4)
Average precipitation days (≥ 1 mm) 19 17 20 24 28 29 30 30 28 26 20 22

Monthly sunshine hours in Kailua-Kona, Hawaii, United States §

The sunniest months in Kailua-Kona are May, June and July, when the sun shines an average of 10 hours 51 minutes a day.Least sunny months in Kailua-Kona: January, February and December receive an average of 8 hours 7 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Kailua-Kona, Hawaii, 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 222 254 282 302 330 330 337 327 311 296 270 262
Mean daily daylight hours 11h 5m 11h 30m 12h 2m 12h 36m 13h 3m 13h 17m 13h 9m 12h 44m 12h 12m 11h 39m 11h 11m 10h 57m

Solar UV radiation in Kailua-Kona, Hawaii, United States §

Kailua-Kona experiences the highest level of ultraviolet (UV) radiation in April, July and August, when the maximum UV index can reach values of 13 - 14, which corresponds to the Extreme category of sun exposure.January, November and December are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 9. For more detailed information, check out our hourly Kailua-Kona UV Index data.

Average daily maximum UV levels by month for Kailua-Kona, Hawaii, 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) 8 11 12 13 13 13 14 14 13 12 9 8