January Weather in Honolulu, United States

Last updated: February 24, 2025

In Honolulu during January, expect pleasant weather conditions characterized by a maximum temperature of 25°C (78°F) and an average of 23°C (74°F). The nights are mild, with minimum temperatures around 20°C (69°F). While the island enjoys a relatively dry month with only 16 mm (0.6 in) of precipitation spread across four days, the humidity remains high at 78%, creating a tropical ambiance. This makes January an ideal time for outdoor activities amidst the picturesque landscapes of Hawaii.

January Temperature in Honolulu

In January, Honolulu welcomes the new year with mild temperatures that beautifully set the stage for a tropical getaway. The month features a comfortable range, with minimums around 20°C (69°F) and average highs reaching 25°C (78°F). This pleasant climate invites both locals and visitors to enjoy outdoor activities, whether it's a soothing beach day or an invigorating hike. As the months progress into February and beyond, the temperatures slightly fluctuate, remaining stable between 23°C (73°F) and 25°C (78°F), showcasing Honolulu's characteristic warmth. Notably, while the nights may occasionally dip, the overall vibe stays sinfully tropical, drawing adventurers to bask in the beautiful Hawaiian sun throughout the winter months.

January Weather in Honolulu: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Honolulu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec747373747577787979787775
Data source: Temperature data for Honolulu generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Honolulu

In January, Honolulu experiences relatively low levels of precipitation, with only 16 mm (0.6 in) of rain falling across 4 days. This marks the start of the year with mild moisture, setting a tranquil tone before the wetter months ahead. As February rolls in, an increase is evident, with rainfall nearly quadrupling to 60 mm (2.4 in)—indicating the beginning of the island's wet season. This upward trend continues into March, where precipitation peaks at 66 mm (2.6 in) over the same nine-day span, capturing the essence of tropical rainfall. Following these months, rainfall tapers somewhat, but notable spikes occur again in the late fall, suggesting a pattern of seasonality that characterizes Hawaiian weather. Overall, January's modest precipitation serves as a gentle reminder of the lush greenery that follows, highlighting the dramatic shifts within Honolulu’s climate throughout the year.

January Precipitation Trends in Honolulu

The chart displays monthly precipitation patterns in Honolulu, 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.
JanFebMarAprMayJunJulAugSepOctNovDec166066302327131519452563
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Honolulu

In January, Honolulu experiences a comfortable humidity level of 78%, setting the tone for a pleasantly tropical start to the year. As the months progress into February, humidity rises slightly to 79%, and remains consistent around 78-79% through March. However, a notable shift occurs from April onwards, as humidity steadily increases, peaking at 83% during the sultry summer months of July and August. This trend reflects the city's transition into a more humid climate, moderating slightly in the fall with October at 81% and November at 80% before dipping again to 79% in December. Overall, the data illustrates how Honolulu's humidity peaks during the summer, showcasing the lush, vibrant environment that characterizes this beautiful island paradise.

January Average Humidity in Honolulu

This chart illustrates the average monthly humidity levels in Honolulu, 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 Honolulu

In January, Honolulu experiences a UV Index of 8, categorized as very high, which means you can get sunburned in just 15 minutes of unprotected exposure. As the year progresses, the UV Index steadily increases, reaching a peak of 13 from June to August, indicating an extreme level of UV radiation and a significantly reduced burn time of only 10 minutes. This trend highlights the importance of sun safety throughout the year, especially as spring approaches with a sharp rise in UV levels. Even in the cooler months of November and December, the UV Index remains at 8, reminding us that protection is essential year-round. For more detailed information, check the Honolulu UV Index.

Maximum UV Index Levels in Honolulu for January

The chart shows the monthly maximum UV Index (UVI) for Honolulu 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.
JanFebMarAprMayJunJulAugSepOctNovDec810111212131313121188
Data source: Honolulu 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 Honolulu

In Honolulu, the promise of January sunshine greets residents and visitors alike with 223 hours of bright daylight, setting the tone for a year enriched by warmth. As the days roll into February, sunshine hours increase to 252, hinting at the gradual transition towards longer days. By March, the island is bathed in 289 hours of daylight, captivating those who soak in its rays. The sun continues to climb, peaking in July with an impressive 350 hours, making summer a time of abundant brightness. Following the peak, sunlight hours begin to taper off slightly but remain generous through September and October. Even as the year winds down, November and December maintain a vibrant flair with 275 and 260 hours respectively. This rhythmic ebb and flow of sunshine not only highlights Honolulu's allure but also sets a stunning backdrop for year-round adventure and relaxation.

Monthly Sunshine Duration in Honolulu: January Highlighted

The January sunshine duration represents the total number of hours Honolulu 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.
JanFebMarAprMayJunJulAugSepOctNovDec223h252h289h310h337h339h350h339h319h302h275h260h
Data source: Honolulu January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Honolulu During January

In January, Honolulu enjoys a 60% chance of sunny weather, setting a positive tone for the new year. As the months progress, the likelihood of sunshine gradually increases, peaking in August with an impressive 74%. Interestingly, February and April also feature higher probabilities, both at 64%, suggesting that early in the year, the sun shines a bit more frequently. However, as winter transitions to spring, the chances fluctuate, dipping to 53% in March and a notable 41% in December. Overall, the emerging trend highlights a warm, inviting climate, with sunshine becoming more prevalent as the year unfolds, making Honolulu an ideal getaway for sun-seekers throughout the year.

Percentage of Sunny Days in January in Honolulu

The chart illustrates the percentage of sunny days in Honolulu 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 Honolulu experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec60%64%53%64%73%69%61%74%70%69%64%41%
Data source: Honolulu January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Honolulu in January

In Honolulu, January marks the beginning of a gradual increase in daylight, with 10 hours illuminating the beautiful landscapes. As the year unfolds, the trend becomes clear: daylight duration steadily climbs until it reaches a peak of 13 hours in the summer months of May through July. This vibrant stretch brings ample sunlight, perfect for outdoor adventures and beach activities. As summer wanes, daylight begins to taper, returning to 12 hours in August and September, before settling back into 11 hours during October and November. The cycle completes itself as December and January both revert to 10 hours, illustrating a rhythmic dance of light that characterizes Honolulu's year. This consistent ebb and flow of daylight not only enhances the island's charm but also influences the local lifestyle, encouraging residents and visitors alike to soak in the sun throughout the changing seasons.

Average Daylight Hours in Honolulu for January

The chart illustrates the variation in daylight duration in Honolulu 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 6m10h 50m
Data source: Honolulu daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Honolulu

In January, the winds of Honolulu dance at an average speed of 7.3 m/s (16 mph), providing a refreshing breath of air as the new year begins. As the month transitions into February, a gentle decline is observed with winds easing to 6.6 m/s (15 mph), setting a tranquil tone before revving up again in March to match January's velocity. The spring months bring a subtle shift, with April's winds dropping to 6.3 m/s (14 mph), but they regain momentum by May and June, hovering around 6.8 to 6.9 m/s (15 mph). The gusts reach their peak in July with a lively 8.7 m/s (19 mph), hinting at summer's vibrant energy. This trend continues into the early fall, where September and October see solid winds of around 7.7 m/s (17 mph) and 8.0 m/s (18 mph), respectively. However, a notable drop in November brings winds down to a calm 5.1 m/s (11 mph), ushering in the quieter, more serene end of the year before rebounding in December. Overall, January sets a dynamic stage for Honolulu's wind patterns, showcasing a lively interplay between calm and brisk conditions throughout the year.

Average January Wind Speed in Honolulu

The chart displays monthly wind speed patterns in Honolulu, 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.
JanFebMarAprMayJunJulAugSepOctNovDec7.3 m/s6.67.36.36.96.88.77.37.78.05.17.5
Data source: Honolulu January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Honolulu Compares to Other Months

The weather in Honolulu 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 Honolulu and find detailed weather information for every month.

In January, temperatures in Honolulu typically range from a minimum of 20°C (69°F) to a maximum of 25°C (78°F), with an average of 23°C (74°F). The month experiences relatively low precipitation, with only 16 mm (0.6 in) over about 4 days, and humidity levels hover around 78%. In contrast, February sees a slight dip in minimum temperatures, down to 17°C (63°F), while the maximum remains the same at 25°C (77°F), keeping the average stable at 23°C (73°F). However, February is notably wetter, with 60 mm (2.4 in) of precipitation spread over 9 days, and humidity rises slightly to 79%. For a more detailed look at February weather specifics, you can visit Honolulu weather in February.

In January, the weather boasts a pleasant range of temperatures with minimums around 20°C (69°F) and maximums reaching 25°C (78°F), accompanied by minimal precipitation of just 16 mm (0.6 in) over 4 days. In contrast, March offers a similar temperature profile, maintaining an average of 23°C (73°F), but sees a significant increase in rainfall, totaling 66 mm (2.6 in) across 9 days. Both months share a humidity level of 78%, but March's wetter conditions mark a notable change from the drier January climate. For more details, check out Honolulu weather in March.

In January, the weather is mild with average temperatures ranging from a minimum of 20°C (69°F) to a maximum of 25°C (78°F). The month sees relatively low precipitation at 16 mm (0.6 in) over about 4 days and has a humidity level of 78%. In contrast, April experiences slightly warmer temperatures, with an average of 24°C (75°F) while maintaining the same maximum of 25°C (78°F). However, April is wetter, recording 30 mm (1.2 in) of rainfall over 6 days, and the humidity increases to 81%. For more insights on how April compares, check out this link: Honolulu weather in April.

In January, the weather features warm temperatures with a minimum of 20°C (69°F) and an average of 23°C (74°F), reaching a maximum of 25°C (78°F). The month experiences relatively low precipitation, with only 16 mm (0.6 in) over four days and a humidity level of 78%. Conversely, May sees slightly warmer conditions, with a minimum temperature of 19°C (66°F), an average of 24°C (76°F), and a maximum of 27°C (80°F). Rainfall increases to 23 mm (0.9 in) over the same four days, along with a slight rise in humidity to 82%. For more details on the weather trends, check out Honolulu weather in May.

In January, the weather in Honolulu is pleasantly warm, with average temperatures ranging from a minimum of 20°C (69°F) to a maximum of 25°C (78°F). The month experiences relatively low precipitation, with 16 mm (0.6 in) over 4 days and a humidity level of 78%. In contrast, June sees slightly warmer temperatures, with minimums of 23°C (74°F) and maximums reaching 27°C (81°F). Precipitation increases to 27 mm (1.1 in) over just 3 days, and humidity rises slightly to 82%. For more detailed insights, check out Honolulu weather in June.

In comparing the weather between January and July, January sees a slightly cooler climate with average temperatures ranging from a minimum of 20°C (69°F) to a maximum of 25°C (78°F). During this month, rain is more frequent, with precipitation occurring on 4 days and totaling 16 mm (0.6 in), while humidity is recorded at 78%. Conversely, July is warmer and more humid, with temperatures averaging between 23°C (74°F) and 28°C (82°F). Notably, July experiences less rain, with just 13 mm (0.5 in) falling over 2 days, and humidity rises to 83%. For a more detailed look at the weather conditions in July, you can visit Honolulu weather in July.

In January, the weather features milder temperatures, with a minimum of 20°C (69°F) and a maximum of 25°C (78°F), along with a relatively high humidity level of 78%. It experiences a bit more rainfall, totaling 16 mm (0.6 in) over four days. In contrast, August presents warmer conditions, with minimum temperatures of 24°C (76°F) and maximums reaching 28°C (83°F). Despite having a slightly lower total precipitation of 15 mm (0.6 in) over just two days, humidity increases to 83%. For more detailed insights, you can visit Honolulu weather in August.

In January, the weather is generally warm with minimum temperatures around 20°C (69°F) and an average of 23°C (74°F), while the maximum reaches 25°C (78°F). The month experiences relatively low precipitation of 16 mm (0.6 in) over four days, with humidity levels at 78%. In contrast, September sees slightly higher temperatures, with minimums at 23°C (75°F), an average of 26°C (79°F), and maximums peaking at 28°C (83°F). Precipitation increases slightly to 19 mm (0.7 in) over the same number of rainy days, along with a small uptick in humidity to 82%. For a closer look at the weather conditions during this month, visit Honolulu weather in September.

In January, the weather is pleasantly warm with minimum temperatures around 20°C (69°F) and an average of 23°C (74°F), peaking at a maximum of 25°C (78°F). Rain is relatively scarce, with only 16 mm (0.6 in) of precipitation over about 4 days, and humidity averages 78%. In contrast, October brings slightly warmer conditions, with minimum temperatures of 23°C (73°F) and an average of 26°C (79°F), reaching highs of 28°C (82°F). However, October experiences more rain, totaling 45 mm (1.8 in) over about 7 days, and a slight increase in humidity to 81%. For more detailed insights about the weather in this month, feel free to check Honolulu weather in October.

In January, the weather tends to be slightly cooler, with average temperatures ranging from a minimum of 20°C (69°F) to a maximum of 25°C (78°F). The month sees about 16 mm (0.6 in) of precipitation over four days, along with a humidity level of 78%. In contrast, November is warmer, featuring average temperatures from a minimum of 21°C (70°F) to a maximum of 27°C (82°F). It experiences more precipitation at 25 mm (1.0 in) over six days, and a humidity level of 80%. For a detailed look at the climate conditions, check out Honolulu weather in November.

In comparing the weather between January and December, January tends to be slightly cooler, with average temperatures ranging from a minimum of 20°C (69°F) to a maximum of 25°C (78°F), while December boasts an average temperature range of 20°C (68°F) to 26°C (79°F). Precipitation is significantly lower in January, with only 16 mm (0.6 in) over 4 days, compared to December's 63 mm (2.5 in) over 8 days. Interestingly, humidity levels remain relatively stable, at 78% in January and 79% in December. For a deeper insight into the conditions you can expect, check out Honolulu weather in December.

Compare Honolulu's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Honolulu

In January, Honolulu experiences delightful weather that sets it apart from other months, offering a perfect blend of mild temperatures and substantial humidity. With average highs around a comfortable 23°C (74°F), the cool ocean breezes make outdoor activities enjoyable, even though rainfall may make an appearance on a few days. Compared to the hotter and drier summer months, January's mild temperatures and occasional showers create a refreshing atmosphere that invites both residents and visitors to embrace the tropical charm. For more in-depth insights on weather patterns throughout the year, check out Honolulu Climate.