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Monthly climate in Waialua, Hawaii, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Waialua features a tropical savanna climate (As).Temperatures typically range between 22 °C (72 °F) and 26 °C (79 °F) through the year, but rarely can drop to 17 °C (62 °F) or can rise to as high as 29 °C (84 °F).The average annual precipitation amounts to about 408 mm (16.1 inches) and receives 52 rainy days on the 1 mm (0.04 inches) threshold annually.Waialua enjoys an average of 3554 hours of sunshine throughout the year, and daylight varies from 10 hours 50 minutes to 13 hours 24 minutes per day.

Monthly average temperatures in Waialua, Hawaii, United States §

The warmest months in Waialua are July, August and September, with daily mean temperatures ranging from 25 to 26 °C (78 - 79 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 22 to 23 °C (72 - 73 °F) throughout the day. On average each year, Waialua experiences 183 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 Waialua, 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 25°C
(78°F)		 26°C
(78°F)		 26°C
(79°F)		 26°C
(79°F)		 27°C
(81°F)		 28°C
(82°F)		 28°C
(83°F)		 29°C
(84°F)		 29°C
(84°F)		 28°C
(83°F)		 27°C
(82°F)		 27°C
(80°F)
Mean maximum 25°C
(77°F)		 25°C
(77°F)		 25°C
(77°F)		 26°C
(78°F)		 27°C
(80°F)		 27°C
(82°F)		 28°C
(82°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(82°F)		 27°C
(81°F)		 26°C
(78°F)
Average high 24°C
(75°F)		 23°C
(74°F)		 23°C
(74°F)		 24°C
(76°F)		 25°C
(78°F)		 26°C
(80°F)		 27°C
(80°F)		 27°C
(81°F)		 27°C
(81°F)		 26°C
(80°F)		 25°C
(78°F)		 24°C
(76°F)
Daily mean 23°C
(73°F)		 22°C
(72°F)		 22°C
(72°F)		 23°C
(74°F)		 24°C
(75°F)		 25°C
(77°F)		 25°C
(78°F)		 26°C
(79°F)		 26°C
(79°F)		 25°C
(78°F)		 24°C
(76°F)		 23°C
(74°F)
Average low 22°C
(72°F)		 21°C
(70°F)		 21°C
(71°F)		 22°C
(72°F)		 23°C
(73°F)		 24°C
(75°F)		 24°C
(76°F)		 25°C
(77°F)		 25°C
(77°F)		 24°C
(76°F)		 24°C
(75°F)		 22°C
(73°F)
Mean minimum 21°C
(69°F)		 19°C
(66°F)		 20°C
(68°F)		 21°C
(69°F)		 21°C
(70°F)		 23°C
(73°F)		 23°C
(74°F)		 24°C
(76°F)		 24°C
(75°F)		 23°C
(73°F)		 21°C
(71°F)		 21°C
(69°F)
Minimum 20°C
(67°F)		 17°C
(62°F)		 18°C
(65°F)		 19°C
(67°F)		 19°C
(67°F)		 22°C
(72°F)		 23°C
(74°F)		 23°C
(74°F)		 23°C
(74°F)		 22°C
(72°F)		 21°C
(69°F)		 18°C
(65°F)

Compare climate in Waialua with other places

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

Monthly average precipitation in Waialua, Hawaii, United States §

Waialua usually has the most precipitation in February, March and December, with an average of 7 rainy days and 72 mm (2.8 inches) of precipitation per month.The driest months in Waialua are July, August and September. On average, 10 mm (0.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Waialua, 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) 14 (0.5) 74 (2.9) 65 (2.5) 26 (1.0) 20 (0.8) 36 (1.4) 7 (0.3) 11 (0.5) 13 (0.5) 44 (1.7) 21 (0.8) 77 (3.0)
Average precipitation days (≥ 1 mm) 2 10 7 6 3 2 1 2 3 6 5 5

Monthly sunshine hours in Waialua, Hawaii, United States §

The sunniest months in Waialua are May, July and August, when the sun shines an average of 10 hours 59 minutes a day.Least sunny months in Waialua: January, February and December receive an average of 7 hours 52 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Waialua, 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 214 252 284 306 337 336 348 337 317 299 271 249
Mean daily daylight hours 10h 58m 11h 26m 12h 2m 12h 39m 13h 9m 13h 24m 13h 16m 12h 48m 12h 13m 11h 36m 11h 5m 10h 50m

Solar UV radiation in Waialua, Hawaii, United States §

Waialua experiences the highest level of ultraviolet (UV) radiation in April, July and August, when the maximum UV index can reach values of 12 - 13, which corresponds to the Extreme category of sun exposure.January, November and December are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 8. For more detailed information, check out our hourly Waialua UV Index data.

Average daily maximum UV levels by month for Waialua, 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 10 11 12 12 12 13 13 12 11 8 7