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Kahului Weather in January
Kahului in January averages 26°C (79°F) during the day and 20°C (68°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Kahului in January
This month experiences about 12 days of rain according to historical data, averaging 60 mm (2.4 in). Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in Kahului in January
Kahului has excellent weather in January, with days reaching 26°C (79°F) and nights cooling to 20°C (68°F). Overall, the month follows a fairly predictable daily temperature pattern. At 20°C (68°F) overnight, nights are warm enough to sit outside comfortably in light clothing.
Sunshine in Kahului in January
The month enjoys around 216 hours of sunshine, creating mostly sunny days with good weather conditions.
Wind Speed in Kahului in January
Wind speeds average 4 m/s (8 knots) during January. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.
Average water temperature in January
The water temperature is 24°C (75°F), which most people find very comfortable. A good month for swimming and water sports.Our weather planner can help you explore other travel destinations worldwide.
Kahului Temperature in January
Min Temperature
20°C (68°F)
Max Temperature
26°C (79°F)
Water Temperature
24°C (75°F)
Chance of Rain
39%
Precipitation
60 mm (2.4 in)
Rainy days
12 days
Humidity
78%
Windspeed
4 m/s (8 knots)
Sunshine
216 hours
Percentage Sunshine
64%
Kahului Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Kahului - and find the best time to visit.
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Kahului typically stay consistent throughout January, with daily highs averaging around 26°C (79°F). Nights are pleasant, with lows around 18°C (64°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather records for Kahului in January
Browse day-by-day weather records for Kahului spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kahului historical weather extremes in January
Based on weather observations in Kahului between 1976 and 2025, these are the recorded extremes during January.
- The hottest January day on record in Kahului reached 32°C (90°F) (January 16, 2021).
- On January 30, 2008, Kahului saw its coldest January day with temperatures maxing out at 20°C (68°F).
- Kahului registered its coldest January night on January 4, 2018, with temperatures dropping to 12°C (54°F).
Best Places in the United States of America in January
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in January →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Kahului in January
Warm weather calls for comfortable, breathable clothing in January. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Rain is likely on several days, so bring a good rain jacket. With water temperatures around 24°C (75°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Kahului in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming9/10 -
Cycling8/10 -
Walking8/10 -
Camping8/10 -
Outdoor sports8/10
Kahului 3-Day Forecast
More climate data for Kahului
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Kahului climate overview or explore weather in the United States of America.
Popular in January
Where to go in January - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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