Honolulu County Climate and Average Weather
Climate of Honolulu County: average temperatures, rainfall and seasons month by month.
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° | 66° | 3,9 in | ★★★★☆ |
| February | 77° | 66° | 2,0 in | ★★★★☆ |
| March | 79° | 68° | 5,7 in | ★★★☆☆ |
| April | 80° | 69° | 3,7 in | ★★★★☆ |
| May | 82° | 70° | 3,5 in | ★★★★☆ |
| June | 84° | 72° | 1,1 in | ★★★★★ |
| July | 85° | 73° | 1,1 in | ★★★★★ |
| August | 86° | 74° | 2,0 in | ★★★★☆ |
| September | 86° | 74° | 1,6 in | ★★★★☆ |
| October | 84° | 73° | 1,6 in | ★★★★☆ |
| November | 82° | 71° | 1,4 in | ★★★★☆ |
| December | 80° | 69° | 1,8 in | ★★★★☆ |
Climate type: Mediterranean. Source: Open-Meteo archive (ERA5).
Recent extremes in Honolulu County
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
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 | 29 in |
| Honolulu | 0 mi | 75°F | about the same | 29 in |
| ZIP Code 96815 | 3 mi | 76°F | about the same | 36 in |
| Waikiki | 3 mi | 76°F | about the same | 36 in |
| Waikiki Beach | 3 mi | 76°F | about the same | 36 in |
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 this means for Honolulu County
Today is cooler than average for October. The forecast high of 76°F is 8.6°F below the 84°F typical for this month.
A 100% chance means rain is expected over most of the area. Plan indoor alternatives. Around 2,9 in is forecast, which is enough to soak trails and slow traffic.
Visibility is down to 2,3 mi - use low beams and leave extra following distance. Wet roads are likely; braking distances roughly double in heavy rain.
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.
What to pack, what to skip
- 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.
Summary
Honolulu County is a county in Hawaii. Honolulu County is a county in the United States. It has a population of about 1 million.
Right now it is 73°F (23°C) in Honolulu County with drizzle. It feels like 79°F. Today runs from 72°F to 76°F. Chance of precipitation is 100%. Sightseeing conditions score 5.7/10 - fair - plan around the weather.
The best time to visit Honolulu County is June, July, August, September, October and November. The climate is Mediterranean. January, March and April tend to be the least comfortable months. August is the warmest month with average highs near 86°F, while February is the coldest with lows near 66°F.
The closest major airport is Daniel K. Inouye International Airport (HNL), about 4 mi away. Nearby highlights include Waikiki Beach, Pearl Harbor National Memorial, Oahu and Maui.
In plain terms. Today is cooler than average for October. The forecast high of 76°F is 8.6°F below the 84°F typical for this month. The best window to be outside is roughly 6 PM to 9 PM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Honolulu County today at 9.4/10. Visibility is down to 2,3 mi - use low beams and leave extra following distance. Wet roads are likely; braking distances roughly double in heavy rain.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Honolulu County
| Type | County |
|---|---|
| State | Hawaii |
| Country | United States |
| Continent | North America |
| Coordinates | 21°18′24.8″N 157°51′29.9″W (21.3069, -157.8583) |
| Population | 1.000.000 |
| Local time | 1:51 PM (UTC-10:00) |
| Best months | June, July, August, September, October and November |
| Climate | Mediterranean |
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.
Explore Honolulu County
Every topic we hold for this place, and the same topic for the places around it.
Climate 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 73°F (23°C) with drizzle. Humidity is 98% and wind is 6 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 1:51 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 October 28, 2026 at 1:51 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
