Honolulu County Weather Forecast
Honolulu County weather: 78°F, overcast. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Risk assessment for Honolulu County
Derived from the current forecast window - not an official warning.
Peak gusts of 38 mph and 0 thunderstorm days in the next 16 days.
Wettest single day forecast at 0,2 in, 1,3 in across the window. Flash flooding risk rises sharply above 50 mm in a day.
16-day forecast for Honolulu County
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Fri, Aug 21 | 🌦️ Light showers | 87° / 73° | 31% · 0,2 in | 12 mph | 9 |
| Sat, Aug 22 | ☁️ Overcast | 86° / 76° | 12% | 17 mph | 9 |
| Sun, Aug 23 | 🌦️ Light drizzle | 85° / 76° | 37% · 0,1 in | 15 mph | 9 |
| Mon, Aug 24 | 🌦️ Light drizzle | 85° / 76° | 57% · 0,1 in | 15 mph | 9 |
| Tue, Aug 25 | 🌦️ Light drizzle | 85° / 75° | 41% · 0,1 in | 13 mph | 9 |
| Wed, Aug 26 | ☁️ Overcast | 84° / 74° | 13% | 13 mph | 9 |
| Thu, Aug 27 | 🌦️ Light drizzle | 82° / 73° | 16% · 0,1 in | 11 mph | 9 |
| Fri, Aug 28 | 🌦️ Light drizzle | 82° / 74° | 21% · 0,1 in | 13 mph | 9 |
| Sat, Aug 29 | 🌦️ Light drizzle | 83° / 74° | 16% · 0,1 in | 14 mph | 9 |
| Sun, Aug 30 | 🌦️ Light drizzle | 82° / 72° | 21% · 0,2 in | 14 mph | 9 |
| Mon, Aug 31 | 🌦️ Light drizzle | 84° / 73° | 38% · 0,1 in | 13 mph | 8 |
| Tue, Sep 1 | 🌦️ Light drizzle | 83° / 73° | 27% · 0,1 in | 12 mph | 8 |
| Wed, Sep 2 | 🌦️ Light drizzle | 87° / 73° | 25% · 0,1 in | 9 mph | 9 |
| Thu, Sep 3 | ⛅ Partly cloudy | 87° / 74° | 17% | 8 mph | 8 |
| Fri, Sep 4 | 🌦️ Light drizzle | 86° / 75° | 18% · 0,1 in | 10 mph | 6 |
| Sat, Sep 5 | ⛅ Partly cloudy | 86° / 76° | 29% | 12 mph | 9 |
What this means for Honolulu County
Today is about average for August. The forecast high of 87°F is in line with the 86°F typical for this month.
A 31% chance means rain is likely somewhere nearby at some point - carry a layer, but do not cancel.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 40°F - an unusually even climate through the year.
See the Honolulu County forecast by time range
Honolulu County weather - more answers
Explore Honolulu County
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Frequently asked questions
Where is Honolulu County?
Honolulu County is a county in Hawaii. Its coordinates are 21.3069, -157.8583. It lies in North America.
What is the weather like in Honolulu County right now?
It is currently 78°F (25°C) with overcast. Humidity is 86% and wind is 10 mph.
When is the best time to visit Honolulu County?
June, July, August, September, October and November offer the most comfortable conditions in Honolulu County, which has a Mediterranean climate. January, March and April are usually the hardest months for outdoor plans.
What time zone is Honolulu County in?
Honolulu County observes Pacific/Honolulu (UTC-10:00). The local time is 2:15 AM.
How many people live in Honolulu County?
Honolulu County has a population of approximately 1 million.
What is the nearest airport to Honolulu County?
The closest airports are Daniel K. Inouye International Airport (HNL), 4 mi away.
What are the top things to do in Honolulu County?
Popular options include Waikiki Beach, Pearl Harbor National Memorial, Oahu, Maui, Haleakala National Park and Kauai.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 22, 2026 at 2:15 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
