Last updated: February 24, 2025
In December, Kailua experiences a delightful tropical climate characterized by mild temperatures and a touch of humidity. With maximums reaching 27°C (81°F) and an average of 23°C (74°F), the days are pleasantly warm, perfect for outdoor activities. However, the minimum temperatures can dip to 18°C (65°F), inviting cozy evenings. December also brings about 87 mm (3.4 in) of rainfall spread over 16 days, which contributes to the lush greenery that Kailua is known for. With an average humidity of 79%, the air carries a refreshing coastal breeze, making this month a wonderful time to explore the beauty of Kailua's landscapes.
In December, Kailua, United States, experiences a delightful climate, characterized by warm tropical temperatures. With a minimum of 18°C (65°F) and an average of 23°C (74°F), the weather remains pleasant for outdoor activities. The maximum temperature can reach a comfortable 27°C (81°F), making it an ideal time to enjoy the beach or explore nature. As the year comes to a close, December's temperatures show a slight dip compared to the warmer summer months, yet they maintain a cozy warmth that invites both residents and visitors to soak in the lovely island vibes. Overall, the trends indicate a stable, enjoyable climate perfect for holiday festivities and end-of-year relaxation.
In December, Kailua experiences a notable increase in precipitation, with 87 mm (3.4 in) of rain falling over 16 days. This uptick marks one of the wetter months of the year, reflecting a trend of elevated rainfall as the region transitions into winter. Following the relatively dry months of July and August, December’s precipitation serves as a reminder of the island's dynamic weather patterns, where lush tropical landscapes thrive on this seasonal moisture. The persistent showers not only contribute to the vibrant greenery but also enhance the island’s picturesque scenery, creating a beautiful backdrop for holiday festivities.
In December, Kailua experiences a drop in humidity, settling at 79%, which reflects a slight decline from the previous months. Throughout the year, humidity levels tend to rise steadily, peaking at 83% in both July and August, the height of summer. Interestingly, the winter months bring a gentle easing in moisture levels, as evidenced by the gradual descent from 81% in October to December’s 79%. This seasonal variation highlights Kailua’s tropical climate, where humidity is consistently high but tapers off as the year draws to a close, making December a refreshing end to the year.
In December, Kailua experiences a UV Index of 7, categorizing it as high exposure with a burn time of 25 minutes. This slight dip from the previous month's 8 indicates a seasonal trend towards more moderate UV levels as the year winds down. However, December still demands caution; as the sun's rays can be intense, particularly in tropical climates. Looking back over the year, the UV Index peaks significantly in the summer months, reaching extremes of 13 in July and August. Spring months show a gradual rise towards these high levels, with March and April marked at 11 and 12, respectively. As the year progresses, it is essential to remain mindful of UV exposure by checking the Kailua UV Index regularly, ensuring you enjoy the sunny days safely.
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In the vibrant town of Kailua, December offers a delightful glimpse of sunshine, boasting 255 hours of radiant daylight. As the year winds down, the trend shows a gradual decrease from the sunniest summer months, peaking in July at an impressive 349 hours. However, this late-year drop is mild compared to the robust sunshine from earlier months, with December still shining brighter than the cloudy winter days experienced in many other regions. The consistent abundance of sunlight throughout the year, from a striking 335 hours in May to a refreshing 272 hours in November, ensures that Kailua remains a beloved destination for sun-seekers even in the often-chilly winter.
As December rolls into Kailua, the likelihood of enjoying sunny weather takes a noticeable dip, with only a 36% chance of sunshine gracing the skies. This marks a significant decline from the months preceding it; for instance, sunshine is typically more abundant in the autumn, with chances hovering around 57% in November, and hitting peaks in late spring and summer months—64% in May and 63% in August. The trend suggests that while the earlier months of the year generally showcase a healthier dose of sunshine, December tends to usher in cloudier days, reminding residents and visitors alike that this tropical paradise can also embrace a more subdued winter atmosphere.
In Kailua, the daylight duration experiences a distinct ebb and flow throughout the year, culminating in December with just 10 hours of sunlight. Starting from the year’s longest days in June, where residents enjoy 13 hours of daylight, there’s a gradual, yet noticeable decline as autumn approaches. With 12 hours in both August and September, the days shorten significantly as we move into October and November, each offering 11 hours. By December, the daylight retreats further, mirroring the pattern seen in January, creating a rhythm of longer summer days giving way to the cozy embrace of winter. This cyclical shift highlights the beauty of nature’s timings, inviting residents to savor the comforting warmth of shorter days during the holiday season.
As December rolls into Kailua, it brings a refreshing burst of wind with an average speed of 6.2 m/s (14 mph), mirroring the breezy conditions of the previous months. The wind picks up from the calm of November, where it dipped to a gentle 4.1 m/s (9 mph), making December an ideal time for outdoor enthusiasts and beachgoers alike. Looking back through the year, we see a trend of fluctuating winds, with July's peak reaching a robust 7.0 m/s (16 mph), creating a dynamic interplay between calmer periods and lively gusts. This ebb and flow of wind speeds not only enhances Kailua's charm but also sets the stage for a delightful winter experience amid the stunning backdrop of this beautiful locale.
The weather in Kailua changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Kailua and find detailed weather information for every month.
In December, the weather tends to be slightly warmer compared to January, with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 27°C (81°F) and an average temperature of 23°C (74°F). This month also experiences more precipitation, totaling 87 mm (3.4 in) over 16 days, contributing to a higher humidity level of 79%.
In contrast, January offers a marginally higher minimum temperature of 19°C (67°F) while maintaining the same average of 23°C (73°F) and maximum of 27°C (80°F). However, it sees significantly less rainfall, with only 34 mm (1.3 in) across 9 days and a slightly lower humidity level of 78%.
For a detailed look at the weather patterns, you can explore more here: Kailua weather in January.
In December, the weather features slightly higher maximum temperatures, averaging around 27°C (81°F), with a minimum of 18°C (65°F) and an average temperature of 23°C (74°F). The month experiences a total of 87 mm (3.4 in) of precipitation over about 16 days, maintaining a humidity level of 79%.
In comparison, February sees a slight drop in temperatures, with maximums reaching 26°C (79°F) and a minimum of 16°C (62°F), resulting in an average temperature of 22°C (72°F). Precipitation in February totals 82 mm (3.2 in) over 14 days, yet the humidity remains consistent at 79%.
For more detailed information on the specific weather during this time, check Kailua weather in February.
In December, temperatures range from a minimum of 18°C (65°F) to a maximum of 27°C (81°F), with an average of 23°C (74°F). The month experiences about 87 mm (3.4 in) of precipitation over 16 days and maintains a humidity level of 79%. In contrast, March sees slightly warmer conditions, with minimum temperatures at 19°C (66°F) and an average of 22°C (73°F), also peaking at 27°C (81°F). Precipitation remains similar, with 89 mm (3.5 in) over 16 days, but humidity slightly decreases to 78%. For a more detailed look at the weather specifics in March, visit Kailua weather in March.
In December, temperatures range from a minimum of 18°C (65°F) to a maximum of 27°C (81°F), with an average temperature of 23°C (74°F). The month sees significant rainfall, with around 87 mm (3.4 in) of precipitation over 16 days and humidity levels at 79%. In contrast, April experiences slightly warmer temperatures, with a minimum of 19°C (66°F) and the same maximum of 27°C (80°F). Precipitation is notably lower in April, totaling 51 mm (2.0 in) over 13 days, while humidity rises slightly to 81%. For more detailed information on April weather patterns, you can explore Kailua weather in April.
December and May both feature mild temperatures, with December exhibiting a minimum of 18°C (65°F) and an average of 23°C (74°F), while May sees a slightly warmer average of 24°C (75°F). The maximum temperatures are also comparable, with December peaking at 27°C (81°F) and May reaching up to 28°C (82°F). However, December tends to be wetter, with 87 mm (3.4 in) of precipitation spread over 16 days, compared to May's 44 mm (1.7 in) across 13 days. Humidity levels remain high in both months, with December at 79% and May slightly higher at 82%. For a more detailed look at May weather, visit Kailua weather in May.
December and June showcase distinct weather patterns that highlight the transition between the cooler and warmer months. In December, temperatures range from a minimum of 18°C (65°F) to a maximum of 27°C (81°F), with an average temperature of 23°C (74°F). This month experiences more precipitation, totaling 87 mm (3.4 in) over 16 days, contributing to a humidity level of 79%. In contrast, June sees slightly warmer temperatures, with a minimum of 22°C (72°F) and a maximum of 28°C (83°F), averaging 25°C (77°F). Precipitation is less frequent in June, with only 56 mm (2.2 in) across 11 days, and humidity remains relatively high at 82%. For more details, you can check out Kailua weather in June.
Comparing the weather in December and July reveals some interesting contrasts. In December, temperatures range from a minimum of 18°C (65°F) to a maximum of 27°C (81°F), with an average of 23°C (74°F). The month sees significant precipitation, with 87 mm (3.4 in) spread across 16 days, and a humidity level of 79%. In contrast, July boasts slightly warmer temperatures, with minimums of 22°C (72°F) and maximums of 28°C (83°F), averaging at 26°C (78°F). The precipitation in July is much lower, totaling 39 mm (1.5 in) over the same number of days, accompanied by a slightly higher humidity of 83%. For more insights on the weather specifics, you can check out Kailua weather in July.
In comparing the weather between December and August, we find that December tends to be slightly cooler with average temperatures ranging from a minimum of 18°C (65°F) to a maximum of 27°C (81°F), while August experiences warmer conditions with minimum temperatures at 23°C (73°F) and maximums reaching 29°C (85°F). December also sees more precipitation, with 87 mm (3.4 in) falling over 16 days, compared to August's 41 mm (1.6 in) over 12 days. Additionally, humidity levels are quite similar, with December at 79% and August slightly higher at 83%. For more detailed insights into the weather trends, you can visit Kailua weather in August.
December tends to be slightly cooler than September, with average temperatures ranging from a minimum of 18°C to a maximum of 27°C, compared to September's range of 22°C to 29°C. Despite December's lower temperatures, it experiences more precipitation, with about 87 mm over 16 days, while September sees only 37 mm over 12 days. Additionally, humidity levels are relatively high in both months, with December at 79% and September at 82%. For more detailed information about September weather, you can visit Kailua weather in September.
In comparing the weather of December and October, December tends to be slightly cooler, with average temperatures ranging from a minimum of 18°C (65°F) to a maximum of 27°C (81°F), while October features warmer conditions with a minimum of 22°C (72°F) and a maximum of 29°C (84°F). Both months experience a similar level of humidity, around 79% in December and 81% in October, contributing to the tropical feel. Precipitation levels are higher in December, with 87 mm (3.4 in) over 16 days, compared to October's 66 mm (2.6 in) over 15 days. For a closer look at October's weather details, visit Kailua weather in October.
In comparing the weather between November and December, December tends to be slightly cooler with average temperatures ranging from a minimum of 18°C (65°F) to a maximum of 27°C (81°F), while November features warmer averages with a minimum of 20°C (69°F) and a maximum of 29°C (84°F). Additionally, December experiences nearly double the precipitation at 87 mm (3.4 in) over the same number of rainy days (16), compared to November's 48 mm (1.9 in). The humidity remains relatively consistent, with December at 79% and November at 80%. For more specific insights about the weather during November, you can explore Kailua weather in November.
As December settles in, Kailua experiences a transition to cooler temperatures and higher humidity compared to previous months. While the days are still pleasantly warm with a maximum of 27°C, the average temperature dips to a cozy 23°C, making it a refreshing respite from the heat of summer. This month also brings increased rainfall, with nearly half the month seeing some precipitation, contributing to the lush tropical landscape. The combination of mild temperatures and frequent showers creates a unique charm, perfect for those looking to experience the beauty of the island in a quieter, greener setting. For a deeper dive into the year-round weather patterns, check out Kailua Climate.