January weather forecastWaiʻanae, HI
January
Weather in January
Ocean temperature
In Waiʻanae, Hawaii, the average seawater temperature in January is 76.8°F (24.9°C).Note: For someone not comfortable with cold, swimming in 76.8°F (24.9°C) waters might be a stretch. However, with favorable conditions like abundant sunshine, mild wind, and warm air temperatures, the experience can be improved. And while wetsuits are not a must, they can be considered.
Daylight
The average length of the day in January in Waiʻanae is 11h and 0min.On the first day of the month, sunrise is at 7:10 am and sunset at 6:01 pm. On the last day of January, sunrise is at 7:10 am and sunset at 6:21 pm HST.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
In January, the average ocean temperature is 76.8°F (24.9°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 76.8°F (24.9°C) water may be enjoyable.
The average day length in January is 11h and 0min.
On the first day of January in Waiʻanae, sunrise is at 7:10 am and sunset at 6:01 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:21 pm HST.
Average sea temperature in January
Waiʻanae, HI
- Average sea temperature in January: 76.9°F
The best month for swimming (with the highest average sea temperature) is September (80.6°F).
The coldest month (with the lowest average sea temperature) is March (75.7°F).
Average daylight in January
Waiʻanae, HI
- Average daylight in January: 11h and 0min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).





