January Weather in Ko Olina, United States

Last updated: February 24, 2025

January in Ko Olina, United States, offers a delightful escape with temperatures ranging from a minimum of 20°C (69°F) to a pleasant maximum of 25°C (78°F). The average temperature settles at 24°C (75°F), making it an ideal time for outdoor activities. Visitors can expect some brief rain, with only 10 mm (0.4 in) of precipitation over two days, ensuring that the lush surroundings remain vibrant. While the humidity hovers around 78%, the tropical atmosphere is tempered by the gentle ocean breezes, creating a comfortable paradise for both relaxation and adventure. Enjoy the warmth and beauty of this stunning destination!

January Temperature in Ko Olina

In Ko Olina, January offers a delightful climate that sets the stage for a perfect winter escape. With minimum temperatures around 20°C (69°F) and a comfortable average of 24°C (75°F), the warmth is inviting, while peak temperatures gently rise to 25°C (78°F). This trend of mild conditions continues into February and March, where temperatures remain relatively stable, making it a fantastic time for outdoor activities. As spring approaches, April sees a slight increase in the minimum temperature to 21°C (70°F), maintaining the pleasant average and maximums. The months that follow gradually warm up, showcasing the region's tropical allure, with maximum temperatures reaching up to 28°C (82°F) by mid-year. Overall, January's temperatures herald the start of a delightful season in Ko Olina, blending comfort with the promise of beautiful Hawaiian adventures ahead.

January Weather in Ko Olina: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Ko Olina, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec747373757678797979797775
Data source: Temperature data for Ko Olina generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Ko Olina

In Ko Olina, United States, January typically greets residents and visitors with relatively dry conditions, featuring only 10 mm (0.4 in) of precipitation over just 2 days. This is notably less than the wetter months that follow, particularly February and March, which see a gradual increase in rainfall, reaching 58 mm (2.3 in) and 59 mm (2.3 in), respectively. As the year progresses, the trend shows a greater variability, with December often peaking at 70 mm (2.8 in), suggesting that while January offers a brief respite, the later months tend to deliver substantial rainfall, inviting lush landscapes in this tropical paradise. Overall, January sets the stage for a shift from its dry start to a wetter mid-year, demonstrating the unique climate patterns that characterize this beautiful region.

January Precipitation Trends in Ko Olina

The chart displays monthly precipitation patterns in Ko Olina, with values for each month alongside January's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec1059592116336913421871
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Ko Olina

In January, Ko Olina experiences a humid environment with an average humidity level of 78%. This marks the beginning of a gradual increase in moisture throughout the year, as humidity rises slightly to 79% in February. The trend continues into the spring months, peaking at 81% by April. As summer approaches, humidity reaches its highest levels, hovering around 83% from July through August. Following this peak, humidity begins a gentle decline, settling back to 79% by December. Overall, the data highlights a consistent pattern of rising humidity from early to mid-year, making the latter months feel more tropical and wet in this picturesque locale.

January Average Humidity in Ko Olina

This chart illustrates the average monthly humidity levels in Ko Olina, with January's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how January's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec78%79%78%81%82%82%83%83%82%81%80%79%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Ko Olina

In Ko Olina, January brings a UV Index of 8, signifying very high exposure levels with a burn time of just 15 minutes. As the year progresses, the UV Index climbs significantly, peaking at 13 in July, where the extreme category mandates a mere 10-minute protective window. This trend of rising UV exposure continues into the fall, before dipping to 8 in November and 7 in December, where the burn times extend to 15 and 25 minutes, respectively. Overall, the UV levels exhibit a clear pattern of intensity; January is just the beginning of a season where sun protection becomes increasingly crucial. For more insights, visit Ko Olina UV Index.

Maximum UV Index Levels in Ko Olina for January

The chart shows the monthly maximum UV Index (UVI) for Ko Olina in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec810111212121312121187
Data source: Ko Olina January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

January Sunshine in Ko Olina

In January, Ko Olina basks in a generous 219 hours of sunshine, setting a warm tone for the year ahead. As the months progress, sunlight slowly intensifies, with February experiencing a notable uptick to 255 hours. This upward trend continues to build momentum, peaking in July with an impressive 349 hours of radiant daylight. The summer months, particularly June and July, offer the most abundant sunshine, ideal for beach lovers and outdoor enthusiasts. Following the high summer, there’s a gradual tapering off as August sees a decline to 338 hours, which persists through September. By December, the days become shorter again, enveloping Ko Olina in a tranquil 253 hours of sun, reminding us of the cyclical nature of the seasons and the persistent allure of this tropical paradise.

Monthly Sunshine Duration in Ko Olina: January Highlighted

The January sunshine duration represents the total number of hours Ko Olina experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec219h255h286h308h338h338h349h338h318h301h273h253h
Data source: Ko Olina January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ko Olina During January

In Ko Olina, January offers a 63% chance of sunny weather, making it a delightful time to soak up the sun after the holiday season. As the winter months unfold, this likelihood gradually increases, peaking at 74% in both May and August, suggesting a trend towards more consistent sunshine as the year progresses. Interestingly, February sees a slight rise to 65%, while the sunshine percentage dips to 43% in December, marking the end of the year with less favorable weather. Overall, those planning a visit in January can expect a fair share of sunny days, setting the tone for a bright start to the year.

Percentage of Sunny Days in January in Ko Olina

The chart illustrates the percentage of sunny days in Ko Olina throughout the year, with January highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Ko Olina experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec63%65%54%66%74%68%61%75%71%70%64%43%
Data source: Ko Olina January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ko Olina in January

In Ko Olina, United States, January begins with 10 hours of daylight, gradually increasing to 12 hours by March and April. As the spring transitions into summer, the daylight peaks during the months of May through July, offering 13 hours of sun-filled days—perfect for enjoying the beautiful beaches and outdoor activities. Following this bright season, daylight begins to diminish, tapering back to 12 hours in August and September, before settling once more into 11 hours during October and November. The year closes with the same 10 hours of daylight as it started, creating a rhythmic ebb and flow of light that beautifully accompanies the changing seasons in this idyllic locale.

Average Daylight Hours in Ko Olina for January

The chart illustrates the variation in daylight duration in Ko Olina throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 59m11h 26m12h 2m12h 38m13h 9m13h 23m13h 15m12h 48m12h 13m11h 37m11h 5m10h 50m
Data source: Ko Olina daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Ko Olina

In Ko Olina, January ushers in a brisk average wind speed of 7.1 m/s (16 mph), setting the tone for a month filled with refreshing breezes. This invigorating start aligns with March, which also enjoys the same spirited winds, suggesting a seasonal consistency that enthusiasts for outdoor activities can eagerly anticipate. As temperatures rise into the summer months, July surprises with a notable 7.8 m/s (18 mph) wind speed, providing an exhilarating backdrop for beachgoers and water sports. However, as the year winds down, November sees a significant drop to 4.7 m/s (11 mph), hinting at a more tranquil atmosphere before the year ends with returning winds of 7.3 m/s (16 mph) in December. Through these fluctuations, Ko Olina's wind patterns create a dynamic interplay, inviting both adventure seekers and those in pursuit of serenity throughout the year.

Average January Wind Speed in Ko Olina

The chart displays monthly wind speed patterns in Ko Olina, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec7.1 m/s6.47.15.96.15.97.86.56.87.34.77.3
Data source: Ko Olina January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Ko Olina Compares to Other Months

The weather in Ko Olina changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of January's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Ko Olina and find detailed weather information for every month.

January and February in Ko Olina present a mild tropical climate with slight variations. In January, temperatures range from a minimum of 20°C (69°F) to a maximum of 25°C (78°F), accompanied by low precipitation of only 10 mm (0.4 in) over just 2 days. Humidity averages around 78%. In contrast, February experiences slightly cooler temperatures, with a minimum of 18°C (65°F) and an average of 23°C (73°F), but it witnesses a significant increase in precipitation, totaling 58 mm (2.3 in) over 7 days, creating a more humid environment at 79%. For more detailed information, check out Ko Olina weather in February.

In comparing the weather of January and March, we notice that both months have similar maximum temperatures, averaging around 25°C (78°F). January tends to be slightly warmer with a minimum of 20°C (69°F) compared to March's 19°C (67°F). However, March experiences significantly higher precipitation, accumulating 59 mm (2.3 in) over six days, while January only sees 10 mm (0.4 in) over two days. Despite the increase in rainfall, the humidity remains constant at 78% in both months, creating a consistently warm and tropical atmosphere. For more detailed insights on March weather, check out Ko Olina weather in March.

In January, the weather in Ko Olina features a mild temperature range with a minimum of 20°C (69°F) and an average high of 25°C (78°F). The month sees limited rainfall, accumulating only 10 mm (0.4 in) over 2 days, and humidity levels hover around 78%. In contrast, April presents a slightly warmer atmosphere, with temperatures starting at a minimum of 21°C (70°F) while maintaining the same average high of 25°C (78°F). However, April experiences increased precipitation, totaling 21 mm (0.8 in) over 3 days, along with a slight rise in humidity to 81%. For more details on the typical conditions, visit Ko Olina weather in April.

In comparison, the weather in January and May is relatively mild, with similar temperature ranges. January sees minimum temperatures around 20°C (69°F), with an average of 24°C (75°F) and a maximum of 25°C (78°F). With only two days of precipitation totaling 10 mm (0.4 in) and a humidity level of 78%, January offers a comfortable, dry climate. In contrast, May features slightly warmer conditions, with a minimum of 20°C (68°F), an average of 24°C (76°F), and a maximum of 27°C (80°F). Although there is more precipitation at 16 mm (0.6 in) over just one day, the humidity increases to 82%. For more detailed insights, you can check Ko Olina weather in May.

In January, the weather is generally mild, with temperatures ranging from a minimum of 20°C (69°F) to a maximum of 25°C (78°F). The month sees relatively low precipitation, totaling just 10 mm (0.4 in) across about 2 days, and an average humidity of 78%. In contrast, June experiences slightly warmer conditions, with temperatures ranging from a minimum of 23°C (73°F) to a maximum of 27°C (81°F). While June has a higher total precipitation of 33 mm (1.3 in), it occurs over just 1 day, and the humidity rises to 82%. For more details, you can check out Ko Olina weather in June.

In January, temperatures are relatively mild, with a minimum of 20°C (69°F) and a maximum of 25°C (78°F), accompanied by an average temperature of 24°C (75°F). The month sees limited precipitation, with just 10 mm (0.4 in) over two days, and humidity levels around 78%. In contrast, July experiences slightly warmer conditions, with a minimum of 24°C (75°F) and a maximum of 28°C (82°F), and an average temperature of 26°C (79°F). Precipitation is even less in July, totaling 6 mm (0.3 in) over just one day, and humidity rises to 83%. For more details, you can check Ko Olina weather in July.

When comparing the weather in January and August, it is evident that both months maintain a warm climate, though August tends to be slightly warmer. In January, temperatures range from a minimum of 20°C (69°F) to a maximum of 25°C (78°F), with an average of around 24°C (75°F). Meanwhile, August sees a minimum of 24°C (76°F) and a maximum of 28°C (83°F), resulting in an average temperature of 26°C (80°F). Both months experience low precipitation levels, with January receiving 10 mm over 2 days and August slightly less at 9 mm also over 2 days. Humidity is marginally higher in August, reaching 83% compared to January’s 78%. For more details on the climate in August, you can check out Ko Olina weather in August.

In January, the weather is pleasantly warm with temperatures ranging from a minimum of 20°C (69°F) to a maximum of 25°C (78°F). The average temperature hovers around 24°C (75°F), accompanied by relatively low precipitation of 10 mm (0.4 in) over just 2 days and humidity levels at 78%. In contrast, September experiences slightly higher temperatures, with a minimum of 24°C (76°F) and a maximum of 28°C (83°F), averaging 26°C (80°F). The month sees a small increase in precipitation, totaling 13 mm (0.5 in) over the same number of rainy days but with slightly elevated humidity at 82%. For a detailed look at what to expect, check out Ko Olina weather in September.

In January, the weather tends to be quite pleasant, with average temperatures ranging from a minimum of 20°C (69°F) to a maximum of 25°C (78°F) and only light precipitation of about 10 mm (0.4 in) over 2 days. The humidity is relatively high at 78%, making the air feel slightly warmer. In contrast, October experiences slightly warmer temperatures, with an average ranging from a minimum of 23°C (73°F) to a maximum of 28°C (83°F). However, this month also sees increased rainfall, totaling 42 mm (1.7 in) over 5 days, and a slight rise in humidity to 81%. For a deeper insight into weather patterns, visit Ko Olina weather in October.

In comparing the weather of January and November, we see that both months feature warm temperatures, but November tends to be slightly warmer with temperatures ranging from a minimum of 21°C (71°F) to a maximum of 27°C (81°F), while January experiences a slightly cooler range of 20°C (69°F) to 25°C (78°F). Additionally, November has higher precipitation levels, with 18 mm (0.7 in) spread across about 5 days, compared to January's 10 mm (0.4 in) over just 2 days. Humidity remains similar in both months, with January at 78% and November slightly higher at 80%. For a detailed look at the weather patterns, you can explore Ko Olina weather in November.

In comparing the weather between January and December, both months exhibit warm temperatures, though January tends to be slightly cooler. January has a minimum temperature of 20°C (69°F) and a maximum of 25°C (78°F), whereas December shows a minimum of 19°C (67°F) and a maximum of 26°C (79°F). Precipitation levels vary significantly, with January receiving only 10 mm (0.4 in) over 2 days, while December experiences a much wetter climate with 70 mm (2.8 in) over 5 days. Additionally, humidity levels remain similar, with January's humidity at 78% compared to December's 79%. For more detailed information on December weather, you can visit Ko Olina weather in December.

Compare Ko Olina's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Ko Olina

As winter settles in across the globe, January in Ko Olina offers a delightful reprieve with mild temperatures and limited rainfall, making it a perfect escape for sun-seekers. While other months may experience higher humidity and increased precipitation, January stands out with its comparatively dry conditions, showcasing an average temperature that feels comfortably warm. With only a couple of rainy days, visitors can enjoy more sunshine and less humidity than they might find at other times of the year. For those planning a trip, the pleasant January climate makes it an ideal time to explore the beauty of this Hawaiian paradise. For more details, check out Ko Olina Climate.