Last updated: August 21, 2025
In December, Avarua, Cook Islands, experiences a tropical climate that delights visitors with warm temperatures and lush greenery. Maximum temperatures reach a pleasant 28°C (82°F), while the average hovers around 25°C (78°F), providing a comfortable escape from the winter chill. The minimum temperature dips to 23°C (74°F), perfect for evening strolls. However, be prepared for the 290 mm (8.7 in) of rain that falls over approximately 19 days, contributing to the region's stunning natural beauty. With an average humidity of 84%, December is a month of vibrant landscapes, making it ideal for those who appreciate the rich, tropical atmosphere of the Cook Islands.
In December, Avarua, Cook Islands, offers a delightful tropical climate, with temperatures reflecting the region's warm charm. The month sees a minimum of 23°C (74°F) and an average of 25°C (78°F), peaking at a comfortable 28°C (82°F). As summer approaches, the warmth begins to build, marking a subtle rise compared to the cooler months of June through August. This transition into warmer weather invites both locals and visitors to enjoy outdoor activities and embrace the vibrant island life, setting the stage for memorable holiday experiences in this picturesque paradise.
December in Avarua, Cook Islands, marks a notable uptick in precipitation, with 220 mm (8.7 in) of rain over 19 days—a significant increase compared to the preceding months. This trend highlights the transition into the wet season, where rainfall frequently sweeps through the region, offering a refreshing respite from the humidity. Following a pattern observed throughout the year, December's precipitation is higher than both November's 120 mm (4.7 in) and October’s 122 mm (4.8 in), suggesting a shift that prepares the islands for the lush greenery that comes with the rainy season. As locals and visitors alike brace for the rains, this month's wet weather serves to nourish the rich biodiversity that epitomizes the natural beauty of the Cook Islands.
In Avarua, Cook Islands, December marks a steady humidity level of 84%, mirroring the high moisture conditions seen in both January and November. The humidity levels show a slight fluctuation throughout the year, beginning with a peak of 85% in February and tapering slightly to a minimum of 77% in June and July. Overall, the trend indicates a tropical climate, with humidity consistently hovering in the mid to high 80s during the early months and losing a touch of its grip as the year progresses. This consistent humidity not only enhances the lush greenery but also creates a warm, inviting atmosphere typical of island life during the rainy season.
In December, Avarua, Cook Islands, experiences a UV Index of 15, categorized as extreme, with a burn time of just 10 minutes. This closing month of the year aligns with the trend observed from January to November, where the UV Index remains consistently high, often peaking at 16 during the summer months. After a brief dip in May and June, the UV levels surge back, emphasizing the importance of sun protection. With the potential for skin damage in such intense sunlight, it's crucial to stay vigilant. For more detailed information, explore the Avarua UV Index.
UV Risk Categories
As the year comes to a close, December in Avarua, Cook Islands, shines brightly with an impressive 284 hours of sunshine, showcasing a remarkable trend of warmth and light. Following a steady increase from the cooler month of May onwards, the sun's embrace becomes more pronounced, peaking in December just shy of the year’s all-time high. This month stands out for its consistency, as it continues the upward trajectory in sunshine hours established in the final months of the year. With days growing longer and brighter, December invites residents and visitors alike to bask in its radiant warmth—perfect for enjoying the stunning natural beauty and vibrant culture of the islands.
In Avarua, Cook Islands, December marks a notable dip in sunny weather, with only 26% likelihood of clear skies. This decline contrasts sharply with the upward trend seen in the preceding months, particularly in September and October, where the chances of sunshine exceeded 50%. It seems that as the year winds down, the clouds begin to gather, making December one of the less favorable months for sun seekers. However, the fluctuating patterns throughout the year reveal that while the sunshine may wane at year-end, Avarua often enjoys bright, sunlit days during the earlier months, suggesting that the sunny charm of the Cook Islands doesn't easily fade.
In Avarua, Cook Islands, December brings a delightful 13 hours of daylight, echoing the extended sunlight of January and November. This time of year signals a return to longer days, as the island transitions away from the shorter daylight hours seen from June to August, when only 10 hours graced the sky. As the calendar progresses through the months, there's a gradual ebb and flow in daylight, with April and May dipping to 11 hours before creeping back upwards. This rhythmic dance of daylight not only highlights the beauty of tropical seasons but also invites both locals and travelers to bask in the warmth of Avarua's enchanting summer solstice.
As December settles into Avarua, Cook Islands, the average wind speed gently hovers around 6.3 m/s (14 mph), maintaining a pleasant breeziness that complements the tropical ambiance. This consistent wind signifies the transition from the stronger gusts seen in May and June, which peak at an invigorating 7.4 m/s (16 mph). Following the months of heavier winds, the gradual tapering is evident, with December holding steady toward the end of the year, mirroring November's breezy conditions. Overall, the winds of December offer a harmonious blend of tranquility and movement, perfect for enjoying the island's natural beauty.
Weather in Avarua varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Avarua, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather is characterized by slightly lower temperatures, with a minimum of 23°C (74°F) and an average of 25°C (78°F), while January experiences a bit warmer conditions, starting with a minimum of 24°C (75°F) and an average of 26°C (79°F). Both months share the same maximum temperature of 28°C (82°F), but December sees more rainfall, totaling 220 mm (8.7 in) over 19 days compared to January's 168 mm (6.6 in) over 17 days. Humidity remains consistent in both months at 84%, making for a warm and humid climate. For more detailed weather information, you can check Avarua weather in January.
December and February weather exhibit some notable similarities and differences. In December, temperatures range from a minimum of 23°C (74°F) to a maximum of 28°C (82°F), with an average of 25°C (78°F). The month experiences significant rainfall, totaling 220 mm (8.7 in) over 19 days, coupled with high humidity at 84%. In comparison, February sees slightly warmer temperatures, with a minimum of 24°C (75°F) and a maximum of 29°C (84°F), averaging 26°C (79°F). However, February is wetter, receiving 298 mm (11.7 in) of precipitation across 22 days, with humidity remaining similarly high at 85%. For more detailed insights, you can refer to Avarua weather in February.
In December, temperatures range from a minimum of 23°C (74°F) to a maximum of 28°C (82°F), with an average of 25°C (78°F). The month experiences significant rainfall, totaling 220 mm (8.7 in) over 19 days, alongside high humidity levels of 84%. In contrast, March sees slightly warmer temperatures, with lows of 24°C (75°F) and highs reaching 29°C (84°F), averaging 27°C (80°F). Although precipitation remains high at 209 mm (8.2 in), it occurs over more days, totaling 24, and the humidity decreases to 81%. For more detailed information, you can check Avarua weather in March.
In December, the weather is characterized by consistently warm temperatures, with a minimum of 23°C (74°F) and an average of 25°C (78°F), peaking at 28°C (82°F). However, this month also experiences significant precipitation, with 220 mm (8.7 in) falling over 19 days, contributing to a high humidity level of 84%. In contrast, April sees slightly warmer temperatures, with an average rising to 26°C (79°F) while maintaining a maximum of 28°C (83°F). Precipitation in April is less, recorded at 162 mm (6.4 in) over just 17 days, and the humidity decreases to 79%. For more detailed insights into April's weather, you can check Avarua weather in April.
In comparing the weather between December and May, both months exhibit similar temperature ranges, with average temperatures around 25°C (78°F) and maximums reaching up to 28°C (82°F). However, December tends to be wetter, experiencing 220 mm (8.7 in) of rainfall over 19 days, while May has a more moderate precipitation level of 165 mm (6.5 in) across 16 days. Additionally, humidity is slightly higher in December at 84%, compared to 80% in May. For more detailed information on May’s climate, you can visit Avarua weather in May.
December and June display contrasting weather patterns. In December, temperatures range from a cozy minimum of 23°C (74°F) to a maximum of 28°C (82°F), accompanied by significant rainfall totaling 220 mm (8.7 in) over 19 days. The humidity is relatively high at 84%, creating a feeling of warmth and stickiness. In contrast, June offers slightly cooler temperatures, with a minimum of 21°C (70°F) and a maximum of 26°C (79°F). The month sees much less rainfall, with only 74 mm (2.9 in) over 12 days, and a lower humidity of 77%. Overall, December tends to be warmer and wetter than June, providing a distinctly tropical experience. For more details on June weather, check out Avarua weather in June.
In comparing the weather of December and July, December tends to be warmer and more humid. With average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 28°C (82°F), it is noticeably more comfortable than July, which has a lower average temperature between 20°C (68°F) and 26°C (79°F). Additionally, December experiences significantly higher precipitation, measuring 220 mm (8.7 in) over 19 days, compared to July's 91 mm (3.6 in) over 13 days. The humidity in December also peaks at 84%, while July is slightly drier at 77%. For more information on the weather during July, you can check Avarua weather in July.
In December, the weather tends to be warmer and more humid compared to August. With temperatures ranging from a minimum of 23°C (74°F) to a maximum of 28°C (82°F) and an average of 25°C (78°F), it creates a tropical atmosphere. Additionally, December experiences significant rainfall, with 220 mm (8.7 in) over 19 days, contributing to a humidity level of 84%. In contrast, August features cooler temperatures, with a minimum of 19°C (66°F), an average of 23°C (73°F), and a maximum of 26°C (79°F). Precipitation is also lower at 132 mm (5.2 in) over 12 days, with humidity at 80%. For those interested in a deeper look at the August weather conditions, more details can be found in this link: Avarua weather in August.
In comparing the weather between December and September, December tends to be warmer and wetter. December's temperatures range from a minimum of 23°C (74°F) to a maximum of 28°C (82°F), with an average temperature of 25°C (78°F), while September sees milder temperatures, with a minimum of 19°C (66°F), an average of 23°C (74°F), and a maximum of 25°C (78°F). Precipitation also increases significantly in December, with 220 mm (8.7 in) falling over 19 days, contrasting sharply with September's 64 mm (2.5 in) over just 10 days. Humidity levels remain relatively high in both months, at 84% in December and 82% in September, making both months feel quite tropical. For more detailed insights, you can visit Avarua weather in September.
In comparing the weather of December and October, it becomes evident that December experiences warmer temperatures, with a minimum of 23°C (74°F) and an average of 25°C (78°F), compared to October's minimum of 19°C (67°F) and an average of 23°C (74°F). Additionally, December sees significantly higher precipitation at 220 mm (8.7 in) over 19 days, while October records 122 mm (4.8 in) across only 12 days. Despite this increase in rainfall, the humidity remains fairly consistent, with December at 84% and October at 83%. For more detailed information on October weather, you can check Avarua weather in October.
In comparing the weather of December and November, December tends to be slightly warmer, with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 28°C (82°F), compared to November's range of 21°C (71°F) to 27°C (80°F). Additionally, December experiences significantly more rainfall, with 220 mm (8.7 in) of precipitation over 19 days, whereas November sees only 120 mm (4.7 in) over 15 days. Both months share a consistent humidity level of 84%. For a more detailed look at November's weather, you can check Avarua weather in November.
In December, Avarua experiences a warm and humid climate, characterized by elevated temperatures and higher precipitation compared to other months. With an average humidity of 84%, the atmosphere can feel muggy, especially alongside the frequent rainfall over 19 days throughout the month. While temperatures hover around a balmy 25°C, the increased precipitation of 220 mm signals a shift towards the wetter season, making it a time for lush vegetation and vibrant landscapes. Travelers should be prepared for both sunny spells and sudden showers, embracing the tropical beauty of the region. For a deeper understanding of Avarua's climatic patterns, visit Avarua Climate.