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Monthly climate in Avarua, Cook Islands

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Avarua features a tropical rainforest climate (Af).Temperatures typically range between 23 °C (73 °F) and 27 °C (80 °F) through the year, but rarely can drop to 19 °C (66 °F) or can rise to as high as 29 °C (84 °F).The average annual precipitation amounts to about 1825 mm (71.9 inches) and receives 189 rainy days on the 1 mm (0.04 inches) threshold annually.Avarua enjoys an average of 3120 hours of sunshine throughout the year, and daylight varies from 10 hours 50 minutes to 13 hours 23 minutes per day.

Monthly average temperatures in Avarua, Cook Islands §

The warmest months in Avarua are January, February and March, with daily mean temperatures ranging from 26 to 27 °C (79 - 80 °F) throughout the day. The coldest temperatures usually occur in August, September and October, when daily mean temperatures range from 23 to 23 °C (73 - 74 °F) throughout the day. On average each year, Avarua experiences 187 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 Avarua, Cook Islands.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 28°C
(84°F)		 29°C
(84°F)		 29°C
(84°F)		 28°C
(83°F)		 28°C
(82°F)		 26°C
(79°F)		 26°C
(79°F)		 26°C
(79°F)		 25°C
(78°F)		 25°C
(78°F)		 27°C
(80°F)		 28°C
(82°F)
Mean maximum 28°C
(82°F)		 28°C
(82°F)		 28°C
(83°F)		 28°C
(82°F)		 27°C
(81°F)		 26°C
(79°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(77°F)		 25°C
(78°F)		 26°C
(79°F)		 27°C
(80°F)
Average high 27°C
(81°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(80°F)		 26°C
(79°F)		 24°C
(76°F)		 24°C
(75°F)		 23°C
(74°F)		 24°C
(75°F)		 24°C
(75°F)		 25°C
(77°F)		 26°C
(79°F)
Daily mean 26°C
(79°F)		 26°C
(79°F)		 27°C
(80°F)		 26°C
(79°F)		 25°C
(78°F)		 24°C
(75°F)		 23°C
(74°F)		 23°C
(73°F)		 23°C
(74°F)		 23°C
(74°F)		 24°C
(76°F)		 25°C
(78°F)
Average low 25°C
(78°F)		 25°C
(78°F)		 26°C
(79°F)		 25°C
(78°F)		 24°C
(76°F)		 23°C
(74°F)		 23°C
(73°F)		 22°C
(72°F)		 22°C
(73°F)		 23°C
(73°F)		 24°C
(75°F)		 25°C
(77°F)
Mean minimum 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(75°F)		 22°C
(73°F)		 22°C
(71°F)		 21°C
(69°F)		 20°C
(69°F)		 21°C
(69°F)		 21°C
(70°F)		 22°C
(71°F)		 23°C
(74°F)
Minimum 24°C
(75°F)		 24°C
(75°F)		 24°C
(75°F)		 23°C
(74°F)		 22°C
(71°F)		 21°C
(70°F)		 20°C
(68°F)		 19°C
(66°F)		 19°C
(66°F)		 19°C
(67°F)		 21°C
(71°F)		 23°C
(74°F)

Compare climate in Avarua with other places

Compare temperature, precipitation, sunshine, UV index in Avarua, Cook Islands with other places around the world.

Monthly average precipitation in Avarua, Cook Islands §

Avarua usually has the most precipitation in February, March and December, with an average of 21 rainy days and 242 mm (9.5 inches) of precipitation per month.The driest months in Avarua are June, July and September. On average, 76 mm (3.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Avarua, Cook Islands.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) 168 (6.6) 298 (11.7) 209 (8.2) 162 (6.4) 165 (6.5) 74 (2.9) 91 (3.6) 132 (5.2) 64 (2.5) 122 (4.8) 120 (4.7) 220 (8.7)
Average precipitation days (≥ 1 mm) 17 22 24 17 16 12 13 12 10 12 15 19

Monthly sunshine hours in Avarua, Cook Islands §

The sunniest months in Avarua are March, November and December, when the sun shines an average of 9 hours 14 minutes a day.Least sunny months in Avarua: May, June and July receive an average of 7 hours 47 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Avarua, Cook Islands.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 248 248 287 254 235 236 245 258 268 274 279 283
Mean daily daylight hours 13h 14m 12h 45m 12h 10m 11h 33m 11h 4m 10h 50m 10h 58m 11h 24m 11h 58m 12h 35m 13h 7m 13h 23m

Solar UV radiation in Avarua, Cook Islands §

Avarua experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 15 - 16, which corresponds to the Extreme category of sun exposure.May, June and July 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 Avarua UV Index data.

Average daily maximum UV levels by month for Avarua, Cook Islands.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) 16 15 14 11 8 7 7 10 11 14 14 15