Honolulu County Weather Forecast
Honolulu County weather: 78°F, partly cloudy. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Honolulu County weather in October
Weather map for Honolulu County
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Climate in Honolulu County month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 78° | 67° | 3,9 in | ★★★★☆ |
| February | 77° | 66° | 2,0 in | ★★★★☆ |
| March | 79° | 68° | 5,7 in | ★★★☆☆ |
| April | 80° | 69° | 3,7 in | ★★★★☆ |
| May | 82° | 71° | 3,5 in | ★★★★☆ |
| June | 84° | 72° | 1,1 in | ★★★★★ |
| July | 85° | 73° | 1,1 in | ★★★★★ |
| August | 86° | 74° | 0,7 in | ★★★★★ |
| September | 86° | 74° | 0,7 in | ★★★★★ |
| October | 85° | 73° | 1,1 in | ★★★★☆ |
| November | 82° | 71° | 1,4 in | ★★★★☆ |
| December | 80° | 69° | 1,8 in | ★★★★☆ |
Climate type: Mediterranean. Source: Open-Meteo archive (ERA5).
Best time to visit Honolulu County
Go in June, July, August, September, October and November. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, March and April - expect the least comfortable mix of heat, cold or rain.
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- A packable rain shell - 2 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid January, March and April - historically the least comfortable months here.
How Honolulu County compares with nearby places
Annual averages, and the difference against Honolulu County.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Area Code 808 | 0 mi | 75°F | about the same | 27 in |
| Honolulu | 0 mi | 75°F | about the same | 27 in |
| ZIP Code 96815 | 3 mi | 76°F | about the same | 34 in |
| Waikiki | 3 mi | 76°F | about the same | 34 in |
| Waikiki Beach | 3 mi | 76°F | about the same | 34 in |
See the Honolulu County forecast by time range
Honolulu County weather - more answers
Explore Honolulu County
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
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 (26°C) with partly cloudy. Humidity is 86% and wind is 11 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 9:01 PM.
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 21, 2026 at 9:01 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
