Climate and monthly weather forecastAvarua District, Cook Islands
Climate and monthly weather forecast
The climate of Avarua District
Stepping into the tropical radius of the Cook Islands, Avarua District is categorized under the Köppen climate classification as "Af", also widely identified as a Tropical rainforest zone. In such an environment, variations in weather parameters are minimal throughout the year, leading to a relatively predictable atmospheric behavior, particularly marked by heavy rainfall.High temperatures range from 25°C (77°F) to 29°C (84.2°F), displaying a moderately uniform warmth all year round. The lowest temperatures show a similar pattern, with the mercury hovering from 19°C (66.2°F) to 23°C (73.4°F). In the tropical sphere that Avarua District resides within, extreme temperature lows are unusually absent, presenting a consistently pleasant environment.
Completing the weather triad, the presence of rainfall heavily defines the district's climate. The monthly averages depict a high-point rainfall of 267mm (10.51"), while the low stands at 102mm (4.02"), solidifying the district's reputation for being a little wetter than most. Interestingly, though, the district witnesses the most sunshine hours in January, February, and March, where the sun graces the district for a whole 17 hours.
UV index levels in Avarua District remain understandably high throughout the year given its geographical position. Levels often reach the 'extreme' scale, with the majority of the year reflecting an index of 12.
The best time to visit Avarua District
With the climate being mostly tropical and consistent, the best time to visit Avarua District hinges on preferences for certain weather characteristics. If a voyage to a warmer climate and more daylight hours is of interest, planning the trip from November to March would be advisable. This period sees the mercury rising to its peak, while daylight lasts for 13.1 to 13.4 hours per day, accompanied by an impressive 17 hours of glorious sunshine.The worst time to visit Avarua District
The period from June to August may not be the most appealing time to visit the Avarua District due to relatively reduced daylight hours, reduced sea temperatures, and increased rainfall. With the daylight dropping to nearly 10.9 to 11.4 hours per day and rainfall rising to 152mm (5.98"), these months might not offer the best outdoor experience in Avarua District.Spring weather in Avarua District
The period of September, October, and November in Avarua District, while categorized as spring on a conventional calendar, doesn't follow the traditional traits of this season. Temperature highs range from 26°C (78.8°F) to 28°C (82.4°F) and lows vary from 19°C (66.2°F) to 21°C (69.8°F). Rainfall during this period is relatively lower, ranging from 132mm (5.2") to 174mm (6.85"). The comforting hug of sunshine lasts for a total of 5 to 6 hours a day, making it a pleasant time to be outdoors.Summer weather in Avarua District
December, January, and February present a wholesome summer experience in Avarua District. Temperatures during these months hover between 28°C (82.4°F) to 29°C (84.2°F) for the highs and 22°C (71.6°F) to 23°C (73.4°F) for the lows. Sea temperatures provide a pleasant average of 27.6°C (81.7°F) to 27.8°C (82°F). Despite the increased rainfall ranging from 229mm (9.02") to 267mm (10.51"), the district is blessed with around 17 hours of sunshine, ensuring ample time for sunbathing.Autumn weather in Avarua District
March, April, and May exhibit autumn weather in Avarua District. While temperatures remain relatively high, ranging from 27°C (80.6°F) to 29°C (84.2°F), rainfall begins to gradually decrease, starting from 220mm (8.66") in March to 205mm (8.07") in May. Sea temperatures during these months range from 24.9°C (76.8°F) to 27.7°C (81.9°F), providing a refreshing dip after a sun-soaked day.Winter weather in Avarua District
Winter arrives in Avarua District around June and lasts until August. During this period, temperatures begin to dip slightly with high temperatures ranging between 25°C (77°F) to 26°C (78.8°F) and lows varying from 19°C (66.2°F) to 20°C (68°F). Rainfall is at its minimum with quantities ranging from 102mm (4.02") in July to 152mm (5.98") in August. Combined with the slightly reduced sunshine hours, this period exudes a milder, cooler atmosphere.Weather in January
January in Avarua District, Cook Islands holds moderate humidity and high temperatures. With an average temperature fluctuating between 23°C (73.4°F) to 28°C (82.4°F), the hot weather conditions are further enhanced by an impressive 17 hours of sunshine. Weather in January »Weather in February
Weather conditions persist in consistency in the month of February. The average rainfall registration decreases slightly to 237mm (9.33"), though maintaining the wet days count of 17. Februrary shares parallel temperature patterns with January ensuring a warm climate throughout. Weather in February »Weather in March
The climate in March in Avarua District, Cook Islands witnesses a slight drop in rainfall to 220mm (8.66"). Simultaneously, the heat index maintains stability with temperature parameters similar to February. Longer hours of daylight bring out the vibrancy of the locale without letting up on the sunshine. Weather in March »Weather in April
In April, Avarua District undergoes observable changes as a few degrees are sliced off both sea and terrestrial temperatures. Rainfall increases to 231mm (9.09") from 220mm (8.66") in March, but the rain events reduce to 13 days. Weather in April »Weather in May
May ushers in lower temperatures ranging from 21°C (69.8°F) to 27°C (80.6°F) in Avarua. A significant reduction in rainfall to 205mm (8.07") also features, thus fewer days of wet weather. Less radiance from the sun marks the onset of shorter summer days. Weather in May »Weather in June
As Winter sets in June, Avarua observes a further drop in temperature ranging from 20°C (68°F) to 26°C (78.8°F). This change accompanies a drastic decrease of rainfall to 120mm (4.72"), happening across 6 days in the month. Despite fewer daylight hours, sunlit moments prevail ensuring an enjoyable winter sun. Weather in June »Weather in July
Weather in Avarua does not greatly shift in July. Comparatively, the town receives the least amount of precipitation with a hitch down to 102mm (4.02") over 5 days. Consequently, temperatures retain their tendency from June, as sea temperatures hit a low of 24.5°C (76.1°F). Weather in July »Weather in August
August sees a departure from dry conditions as rainfall escalates to 152mm (5.98") from 102mm (4.02") in July. The town's temperature reads remain much on par with July's averages. An additional hour of daylight tags along with these conditions. Weather in August »Weather in September
In September, the Avarua District weather displays warming signs with a slight increase in average temperatures. Moderately dry conditions resume with rainfall back down to 132mm (5.2"). More daylight hours allow for enhanced viewing of the exotic locale. Weather in September »Weather in October
Progressing into October, Avarua's weather holds steady. With rainfall measured at 121mm (4.76"), the moderate dry spell continues from September but with fewer rainy days. Increment in daylight hours continues to gradually restore the Avarua District to its summer glory. Weather in October »Weather in November
November brings a climb in both temperature and rainfall, marking the end of the dry spell. The weather remains warm and pleasing with temperatures increasing up to 27°C (80.6°F). An uptick in rainfall to 174mm (6.85") will be noticed, but this does not put a damper on the daytime sunshine. Weather in November »Weather in December
In December, the tropical surroundings of Avarua District, Cook Islands are heightened by further increase in temperature and rainfall. A rise to 229mm (9.02") of rainfall over 11 days is countered by an increase in sunshine hours from November. Weather in December »Updated: Jan 26, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is the month with the most rainfall in Avarua District, Cook Islands. Rain falls for 17 days and accumulates 267mm (10.51") of precipitation.
In Avarua District, during the entire year, the rain falls for 114 days and collects up to 2190mm (86.22") of precipitation.
January through March, with an average of 17h of sunshine, are months with the most sunshine in Avarua District.
January through March, October through December, with an average maximum UV index of 12, are months with the highest UV index in Avarua District, Cook Islands.
Avarua District's warmest months, February and March, record an average high-temperature of 29°C (84.2°F).
The month with the warmest seawater is February, with an average sea temperature of 27.8°C (82°F).
The month with the shortest days is June, with an average of 10h and 54min of daylight.
The months with the lowest UV index are June and July, with an average maximum UV index of 6.
The coldest months are July and August, with an average high-temperature of 25°C (77°F).
July is the month with the least rainfall in Avarua District, Cook Islands. Rain falls for 5 days and accumulates 102mm (4.02") of precipitation.
The months with the coldest seawater in Avarua District are August and September, with an average sea temperature of 24.5°C (76.1°F).
August has the least sunshine of the year, with an average of 3h of sunshine.
The month with the longest days is December, with an average of 13h and 24min of daylight.
Avarua District does not utilize Daylight Saving Time (DST). -10 timezone is used over the entire year.
Average temperature
Avarua District, Cook Islands
The warmest months (with the highest average high temperature) are February and March (29°C).
The months with the lowest average high temperature are July and August (25°C).
The months with the highest average low temperature are January, February and March (23°C).
The coldest months (with the lowest average low temperature) are July, August and September (19°C).
Average rainfall
Avarua District, Cook Islands
- Average rainfall in January:
267mm - Average rainfall in February:
237mm - Average rainfall in March:
220mm - Average rainfall in April:
231mm - Average rainfall in May:
205mm - Average rainfall in June:
120mm
- Average rainfall in July:
102mm - Average rainfall in August:
152mm - Average rainfall in September:
132mm - Average rainfall in October:
121mm - Average rainfall in November:
174mm - Average rainfall in December:
229mm
The wettest month (with the highest rainfall) is January (267mm).
The driest month (with the least rainfall) is July (102mm).
Average rainfall days
Avarua District, Cook Islands
- Average rainfall days in January:
17 days - Average rainfall days in February:
17 days - Average rainfall days in March:
17 days - Average rainfall days in April:
13 days - Average rainfall days in May:
9 days - Average rainfall days in June:
6 days
- Average rainfall days in July:
5 days - Average rainfall days in August:
3 days - Average rainfall days in September:
5 days - Average rainfall days in October:
5 days - Average rainfall days in November:
6 days - Average rainfall days in December:
11 days
The months with the highest number of rainy days are January, February and March (17 days).
The month with the least rainy days is August (3 days).
Average sea temperature
Avarua District, Cook Islands
The best month for swimming (with the highest average sea temperature) is February (27.8°C).
The coldest months (with the lowest average sea temperature) are August and September (24.5°C).
Average daylight / Average sunshine
Avarua District, Cook Islands
- Average daylight in January:
13h and 12min - Average daylight in February:
12h and 48min - Average daylight in March:
12h and 12min - Average daylight in April:
11h and 36min - Average daylight in May:
11h and 6min - Average daylight in June:
10h and 54min
- Average daylight in July:
11h and 0min - Average daylight in August:
11h and 24min - Average daylight in September:
12h and 0min - Average daylight in October:
12h and 36min - Average daylight in November:
13h and 6min - Average daylight in December:
13h and 24min
The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).
The months with the most sunshine are January, February and March (Average sunshine: 17h).
The month with the least sunshine is August (Average sunshine: 3h).
Average UV index
Avarua District, Cook Islands
The months with the highest UV index are January, February, March, October, November and December (UV index 12).
The months with the lowest UV index are June and July (UV index 6).
