Oahu Weather Forecast
Oahu weather: 82°F, mainly clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Summary
Oahu is an island in Hawaii. Oahu is an island known for Waikiki, Pearl Harbor and the North Shore.
Right now it is 82°F (28°C) in Oahu with mainly clear. It feels like 85°F. Today runs from 73°F to 85°F. Chance of precipitation is 71%. Sightseeing conditions score 7.1/10 - good conditions.
The best time to visit Oahu is June, July, August, September, October and November. The climate is Mediterranean. January, March and April tend to be the least comfortable months. September is the warmest month with average highs near 85°F, while February is the coldest with lows near 63°F.
The closest major airport is Daniel K. Inouye International Airport (HNL), about 9 mi away. Nearby highlights include Pearl Harbor National Memorial, Waikiki Beach, Kauai and Hanalei Bay.
In plain terms. Today is about average for August. The forecast high of 85°F is in line with the 85°F typical for this month. The best window to be outside is roughly 7 AM to 10 AM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Oahu today at 8.2/10. Gusts to 35 mph will push high-sided vehicles on exposed roads and bridges. 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.
Weather in Oahu right now
Wear sunglasses and use SPF 30+ if you are outside for long.
Source: Open-Meteo. Updated 3:22 AM, Aug 23 local time.
See the Oahu forecast by time range
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for Oahu
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Sat, Aug 22 | 🌦️ Light drizzle | 85° / 73° | 71% · 0,0 in | 14 mph | 9 |
| Sun, Aug 23 | 🌦️ Light drizzle | 84° / 74° | 89% · 0,1 in | 15 mph | 9 |
| Mon, Aug 24 | 🌦️ Drizzle | 83° / 74° | 100% · 0,2 in | 11 mph | 9 |
| Tue, Aug 25 | 🌦️ Light drizzle | 83° / 74° | 82% · 0,1 in | 10 mph | 8 |
| Wed, Aug 26 | 🌦️ Light drizzle | 83° / 72° | 31% · 0,0 in | 12 mph | 9 |
| Thu, Aug 27 | 🌦️ Light drizzle | 81° / 70° | 51% · 0,1 in | 10 mph | 9 |
| Fri, Aug 28 | 🌦️ Light drizzle | 83° / 70° | 62% · 0,0 in | 10 mph | 9 |
| Sat, Aug 29 | 🌦️ Light drizzle | 83° / 71° | 52% · 0,1 in | 13 mph | 9 |
| Sun, Aug 30 | 🌦️ Light drizzle | 80° / 71° | 61% · 0,1 in | 10 mph | 9 |
| Mon, Aug 31 | 🌦️ Light drizzle | 83° / 71° | 76% · 0,0 in | 10 mph | 9 |
| Tue, Sep 1 | 🌦️ Light drizzle | 82° / 71° | 82% · 0,1 in | 11 mph | 8 |
| Wed, Sep 2 | 🌤️ Mainly clear | 86° / 69° | 54% | 6 mph | 9 |
| Thu, Sep 3 | 🌦️ Light drizzle | 81° / 69° | 70% · 0,1 in | 9 mph | 9 |
| Fri, Sep 4 | 🌦️ Drizzle | 84° / 72° | 71% · 0,3 in | 5 mph | 9 |
| Sat, Sep 5 | 🌦️ Light drizzle | 84° / 72° | 78% · 0,1 in | 6 mph | 9 |
| Sun, Sep 6 | 🌦️ Light drizzle | 81° / 73° | 62% · 0,0 in | 15 mph | 9 |
Climate in Oahu 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 | 77° | 64° | 4,3 in | ★★★★☆ |
| February | 76° | 63° | 2,2 in | ★★★★☆ |
| March | 78° | 66° | 6,0 in | ★★★☆☆ |
| April | 79° | 66° | 4,7 in | ★★★★☆ |
| May | 80° | 68° | 3,9 in | ★★★★☆ |
| June | 83° | 69° | 1,4 in | ★★★★★ |
| July | 83° | 71° | 1,7 in | ★★★★★ |
| August | 85° | 71° | 0,9 in | ★★★★★ |
| September | 85° | 71° | 1,1 in | ★★★★★ |
| October | 84° | 70° | 1,3 in | ★★★★☆ |
| November | 81° | 68° | 1,7 in | ★★★★☆ |
| December | 79° | 66° | 2,2 in | ★★★★☆ |
Climate type: Mediterranean. Source: Open-Meteo archive (ERA5).
Weather map for Oahu
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.
Air quality and pollen in Oahu
Air quality: Open-Meteo (CAMS). US AQI scale.
Sun, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
Best time to visit Oahu
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.
Explore Oahu
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 Oahu?
Oahu is an island in Hawaii. Its coordinates are 21.4389, -158.0001. It lies in North America.
What is the weather like in Oahu right now?
It is currently 82°F (28°C) with mainly clear. Humidity is 69% and wind is 14 mph.
When is the best time to visit Oahu?
June, July, August, September, October and November offer the most comfortable conditions in Oahu, which has a Mediterranean climate. January, March and April are usually the hardest months for outdoor plans.
What time zone is Oahu in?
Oahu observes Pacific/Honolulu (UTC-10:00). The local time is 3:22 AM.
What is the nearest airport to Oahu?
The closest airports are Daniel K. Inouye International Airport (HNL), 9 mi away.
What are the top things to do in Oahu?
Popular options include Pearl Harbor National Memorial, Waikiki Beach, Kauai, Hanalei Bay, Maui and Haleakala National Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (islands) - 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 23, 2026 at 3:22 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
