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Monthly climate in Honaunau-Napoopoo, Hawaii, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Honaunau-Napoopoo features a oceanic climate (Cfb).Temperatures typically range between 13 °C (56 °F) and 17 °C (63 °F) through the year, but rarely can drop to 4 °C (40 °F) or can rise to as high as 25 °C (78 °F).The average annual precipitation amounts to about 7047 mm (277.4 inches) and receives 327 rainy days on the 1 mm (0.04 inches) threshold annually.Honaunau-Napoopoo enjoys an average of 3478 hours of sunshine throughout the year, and daylight varies from 10 hours 58 minutes to 13 hours 16 minutes per day.

Monthly average temperatures in Honaunau-Napoopoo, Hawaii, United States §

The warmest months in Honaunau-Napoopoo are July, August and September, with daily mean temperatures ranging from 17 to 17 °C (62 - 63 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 13 to 14 °C (56 - 57 °F) throughout the day. On average each year, Honaunau-Napoopoo experiences 0 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 Honaunau-Napoopoo, 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 21°C
(70°F)		 23°C
(73°F)		 22°C
(72°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(75°F)		 25°C
(78°F)		 24°C
(75°F)		 24°C
(75°F)		 23°C
(74°F)		 22°C
(72°F)
Mean maximum 20°C
(69°F)		 21°C
(71°F)		 21°C
(70°F)		 22°C
(72°F)		 22°C
(72°F)		 23°C
(73°F)		 23°C
(74°F)		 24°C
(76°F)		 23°C
(74°F)		 23°C
(74°F)		 22°C
(72°F)		 21°C
(70°F)
Average high 19°C
(66°F)		 18°C
(65°F)		 18°C
(65°F)		 19°C
(67°F)		 20°C
(68°F)		 21°C
(70°F)		 21°C
(71°F)		 22°C
(71°F)		 21°C
(71°F)		 21°C
(70°F)		 20°C
(68°F)		 19°C
(66°F)
Daily mean 13°C
(56°F)		 13°C
(56°F)		 14°C
(57°F)		 15°C
(59°F)		 16°C
(60°F)		 16°C
(62°F)		 17°C
(62°F)		 17°C
(63°F)		 17°C
(62°F)		 16°C
(61°F)		 15°C
(59°F)		 14°C
(57°F)
Average low 9°C
(49°F)		 9°C
(49°F)		 10°C
(51°F)		 11°C
(52°F)		 12°C
(54°F)		 12°C
(54°F)		 13°C
(55°F)		 13°C
(56°F)		 13°C
(56°F)		 12°C
(55°F)		 11°C
(53°F)		 10°C
(50°F)
Mean minimum 6°C
(43°F)		 6°C
(43°F)		 7°C
(46°F)		 9°C
(48°F)		 9°C
(49°F)		 10°C
(50°F)		 10°C
(51°F)		 11°C
(52°F)		 11°C
(51°F)		 10°C
(50°F)		 8°C
(46°F)		 7°C
(44°F)
Minimum 5°C
(41°F)		 4°C
(40°F)		 6°C
(43°F)		 7°C
(45°F)		 8°C
(46°F)		 9°C
(48°F)		 9°C
(49°F)		 10°C
(50°F)		 9°C
(48°F)		 9°C
(48°F)		 7°C
(45°F)		 6°C
(43°F)

Compare climate in Honaunau-Napoopoo with other places

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

Monthly average precipitation in Honaunau-Napoopoo, Hawaii, United States §

Honaunau-Napoopoo usually has the most precipitation in June, July and August, with an average of 30 rainy days and 990 mm (39.0 inches) of precipitation per month.The driest months in Honaunau-Napoopoo are January, February and March. On average, 295 mm (11.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Honaunau-Napoopoo, 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) 269 (10.6) 271 (10.7) 346 (13.6) 436 (17.2) 640 (25.2) 790 (31.1) 1083 (42.7) 1098 (43.2) 682 (26.9) 624 (24.6) 407 (16.0) 401 (15.8)
Average precipitation days (≥ 1 mm) 21 20 27 27 30 30 31 31 29 29 26 26

Monthly sunshine hours in Honaunau-Napoopoo, Hawaii, United States §

The sunniest months in Honaunau-Napoopoo are June, July and August, when the sun shines an average of 10 hours 49 minutes a day.Least sunny months in Honaunau-Napoopoo: January, February and December receive an average of 7 hours 58 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Honaunau-Napoopoo, 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 217 249 268 295 325 330 338 326 308 292 266 257
Mean daily daylight hours 11h 5m 11h 30m 12h 2m 12h 35m 13h 3m 13h 16m 13h 8m 12h 44m 12h 12m 11h 39m 11h 11m 10h 58m

Solar UV radiation in Honaunau-Napoopoo, Hawaii, United States §

Honaunau-Napoopoo experiences the highest level of ultraviolet (UV) radiation in April, August and September, when the maximum UV index can reach values of 14 - 15, 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 10. For more detailed information, check out our hourly Honaunau-Napoopoo UV Index data.

Average daily maximum UV levels by month for Honaunau-Napoopoo, 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) 9 12 13 14 14 14 14 15 14 13 10 9