Honolulu Weather in August

What August feels like in Honolulu

As a tropical city, Honolulu is warm all year; August is not part of a clear dry or wet season. Afternoons are hot, so sightseeing works best in the morning or evening. There is little difference between day and night: nights stay warm, and evenings feel much like the afternoon. Some humidity hangs in the air, noticeable when the sun is strong.

Rain in Honolulu in August

Wet days are occasional rather than regular, about one day in 4. Rainfall per wet day is small, about 3.9 mm (0.2 in), so showers tend to pass quickly. That is close to Honolulu's typical rain per wet day for the whole year (about 4.6 mm).

Daylight and sunshine in August

On 15 August the sun rises at about 6:10 am and sets around 7:03 pm local time, giving 12 h 53 min of daylight. Days are getting shorter: 26 min less daylight than in mid-July. The sun is out for roughly 96% of those daylight hours, so skies are mostly clear.

How August compares to the rest of the year

August is the warmest month of the year in Honolulu. Against July, the average high is 0.4°C (0.7°F) higher, with 5 mm more rain. Temperatures barely move from one month to the next here. By September, typical highs are 28.4°C (83.1°F).

Who August suits

• Sightseeing: a good fit — comfortable enough to explore on foot all day.
• Parks & outdoor: less ideal — afternoons are too warm to linger outside.
• Beach: less ideal — too many rainy days.
• Hiking: less ideal — too hot for long hikes.

Tips for visiting Honolulu in August

Quick questions