Honolulu UV index in January
Typical ultraviolet levels for Honolulu during January, from the past year of data.
Moderate UV. Protect your skin during midday hours; wearing a hat and applying sunscreen is advisable.
January average
Honolulu UV index — monthly trend
Average UV index by month over the past year, with January highlighted.
Visiting Honolulu in January?
In January, Honolulu's typical UV index is about 5.5624 — a moderate risk level. Moderate UV. Protect your skin during midday hours; wearing a hat and applying sunscreen is advisable.
Across the year, Honolulu sees the strongest UV in Summer, peaking around 13.5602 in June. Plan sun protection accordingly.