January weather forecast
Halawa, HI

The initiation of the year in Halawa, Hawaii introduces a convenient temperature spectrum. The mercury varies from 61°F (16.1°C) at its lowest to a comfortable high of 77°F (25°C). However, rainfall becomes particularly pronounced, with January recording 7.4" (188mm) over 12 days. The season is also marked by a comparatively low daylight duration. Despite this, sunshine and UV index levels dictate the use of sunscreen, even in the middle of winter.

Temperature

The months of January through March see the lowest levels of Halawa's temperatures, averaging a high of 77°F (25°C).

Rainfall

The month with the most rainfall is January, when the rain falls for 12 days and typically aggregates up to 7.36" (187mm) of precipitation.

Ocean temperature

The months with the coldest seawater are January through April, with an average ocean temperature of 75.2°F (24°C).
Note: Imagine a swim in 75.2°F (24°C) waters. How you'd feel depends on your cold sensitivity, the sun's rays, the caress of the wind, and the warmth enveloping you. Comparatively, Olympic swimmers train in waters between 77°F (25°C) and 82.4°F (28°C).

Daylight

In Halawa, Hawaii, the average length of the day in January is 11h and 1min.
On the first day of the month, sunrise is at 7:04 am and sunset at 5:56 pm. On the last day of January, sunrise is at 7:04 am and sunset at 6:16 pm HST.

Sunshine

January, February, November and December, with an average of 7h of sunshine, are months with the least sunshine in Halawa, Hawaii.

UV index

In January, the average daily maximum UV index in Halawa is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In January, the average maximum UV index of 7 translates into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended. Watch out! Reflections from sand and water can surge UV radiation exposure.