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Monthly climate in Kapaau, Hawaii, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Kapaau features a tropical rainforest climate (Af). Temperatures typically range between 22 °C (71 °F) and 25 °C (77 °F) through the year, but rarely can drop to 16 °C (62 °F) or can rise to as high as 29 °C (84 °F). The average annual precipitation amounts to about 488 mm (19.2 inches) and receives 85 rainy days on the 1 mm (0.04 inches) threshold annually. Kapaau enjoys an average of 3565 hours of sunshine throughout the year, and daylight varies from 10 hours 55 minutes to 13 hours 19 minutes per day.

Monthly average temperatures in Kapaau, Hawaii, United States §

The warmest months in Kapaau are July, August and September, with daily mean temperatures ranging from 25 to 25 °C (77 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 22 to 22 °C (71 - 72 °F) throughout the day. On average each year, Kapaau experiences 171 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 Kapaau, 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
(79°F)		 26°C
(79°F)		 26°C
(79°F)		 26°C
(79°F)		 27°C
(81°F)		 28°C
(82°F)		 28°C
(82°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(83°F)		 29°C
(84°F)		 27°C
(80°F)
Mean maximum 25°C
(77°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)		 27°C
(82°F)		 28°C
(82°F)		 27°C
(82°F)		 27°C
(81°F)		 26°C
(79°F)
Average high 24°C
(75°F)		 23°C
(74°F)		 24°C
(75°F)		 24°C
(76°F)		 25°C
(77°F)		 26°C
(79°F)		 26°C
(80°F)		 27°C
(80°F)		 27°C
(80°F)		 26°C
(80°F)		 26°C
(78°F)		 24°C
(76°F)
Daily mean 22°C
(72°F)		 22°C
(71°F)		 22°C
(72°F)		 23°C
(73°F)		 23°C
(74°F)		 24°C
(76°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(77°F)		 24°C
(75°F)		 23°C
(73°F)
Average low 21°C
(70°F)		 20°C
(69°F)		 21°C
(70°F)		 21°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
(74°F)		 23°C
(73°F)		 21°C
(71°F)
Mean minimum 19°C
(67°F)		 18°C
(64°F)		 19°C
(67°F)		 20°C
(69°F)		 20°C
(69°F)		 22°C
(72°F)		 23°C
(73°F)		 23°C
(74°F)		 23°C
(73°F)		 22°C
(72°F)		 21°C
(70°F)		 20°C
(68°F)
Minimum 19°C
(66°F)		 16°C
(62°F)		 18°C
(64°F)		 19°C
(66°F)		 19°C
(67°F)		 22°C
(71°F)		 22°C
(72°F)		 22°C
(72°F)		 22°C
(72°F)		 21°C
(71°F)		 20°C
(69°F)		 19°C
(66°F)

Compare climate in Kapaau with other places

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

Monthly average precipitation in Kapaau, Hawaii, United States §

Kapaau usually has the most precipitation in February, March and December, with an average of 10 rainy days and 68 mm (2.7 inches) of precipitation per month. The driest months in Kapaau are June, July and September. On average, 14 mm (0.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Kapaau, 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) 38 (1.5) 76 (3.0) 50 (2.0) 44 (1.7) 37 (1.5) 7 (0.3) 19 (0.7) 43 (1.7) 17 (0.7) 47 (1.9) 32 (1.2) 79 (3.1)
Average precipitation days (≥ 1 mm) 7 12 10 11 6 1 2 5 5 10 7 9

Monthly sunshine hours in Kapaau, Hawaii, United States §

The sunniest months in Kapaau are May, June and July, when the sun shines an average of 11 hours 4 minutes a day. Least sunny months in Kapaau: January, February and December receive an average of 8 hours 9 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Kapaau, 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 222 256 284 306 332 339 345 331 313 298 269 263
Mean daily daylight hours 11h 2m 11h 28m 12h 2m 12h 36m 13h 5m 13h 19m 13h 11m 12h 46m 12h 13m 11h 38m 11h 9m 10h 55m

Solar UV radiation in Kapaau, Hawaii, United States §

Kapaau experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 13 - 13, 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 Kapaau UV Index data.

Average daily maximum UV levels by month for Kapaau, 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 13 13 13 12 11 9 8

Detailed Monthly Weather Insights for Kapaau, Hawaii, United States

Discover in-depth weather details for every month in Kapaau. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Kapaau's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.