Oahu Vær Værmelding
Oahu weather: 23°C, overskyet. Time for time forecast, 14-day outlook, UV, air quality and the best time til visit.
14-day forecast for Oahu
Maks. / Min.; Nedbør; UV
| Dag | Forhold | Maks. / Min. | Nedbør | Vind | UV |
|---|---|---|---|---|---|
| ons, sep 30 | 🌧️ Byger | 28° / 22° | 100% · 8 mm | 17 km/h | 7 |
| tor, okt 1 | 🌧️ Byger | 28° / 21° | 100% · 15 mm | 14 km/h | 6 |
| fre, okt 2 | ⛈️ Violent showers | 28° / 22° | 100% · 11 mm | 9 km/h | 6 |
| lør, okt 3 | 🌦️ Light drizzle | 28° / 21° | 49% · 0 mm | 15 km/h | 8 |
| søn, okt 4 | 🌦️ Light drizzle | 27° / 21° | 47% · 0 mm | 21 km/h | 5 |
| man, okt 5 | 🌦️ Light drizzle | 28° / 21° | 67% · 1 mm | 17 km/h | 8 |
| tir, okt 6 | 🌦️ Yr | 27° / 21° | 63% · 7 mm | 11 km/h | 8 |
| ons, okt 7 | 🌦️ Light drizzle | 27° / 21° | 73% · 3 mm | 8 km/h | 5 |
| tor, okt 8 | 🌦️ Light drizzle | 28° / 21° | 74% · 1 mm | 14 km/h | 7 |
| fre, okt 9 | 🌤️ Mest klart | 28° / 22° | 65% | 17 km/h | 6 |
| lør, okt 10 | 🌦️ Yr | 25° / 21° | 76% · 5 mm | 20 km/h | 8 |
| søn, okt 11 | 🌦️ Yr | 27° / 21° | 47% · 6 mm | 22 km/h | 7 |
| man, okt 12 | 🌦️ Light drizzle | 26° / 22° | 52% · 2 mm | 21 km/h | 6 |
| tir, okt 13 | 🌦️ Light drizzle | 26° / 21° | 64% · 4 mm | 21 km/h | 8 |
The two-week trend
Steady. The second week averages within a degree of the first, so no big change is signalled.
The window averages 27°C against a september normal of 29°C - 2°C below.
The next 7 days carry about 5 times a normal week's rain for september (42 mm against 8 mm).
What this means for Oahu
Today is slightly cooler than average for september. The forecast high of 28°C is 1.5°C below the 29°C typical for this month.
A 100% chance means rain is expected over most of the area. Plan indoor alternatives.
Wet roads are likely; braking distances roughly double in heavy rain.
Northern Hemisphere, so peak summer falls in juni til august.
The gap between the warmest and coldest month averages 4°C - an unusually even climate through the year.
What til pack, what til skip
- Lightweight, light-coloured clothing and a refillable water bottle
- sønglasses, a brimmed hat and SPF 30+
- A packable rain shell - 7 of the next 7 days carry a real chance of rain
- Avoid swimming outside patrolled areas - waves are running at 1.7 m.
- If your dates are flexible, avoid januar, mars and april - historically the least comfortable months here.
Se prognosen for Oahu etter tidsintervall
Oahu weather - more answers
Explore Oahu
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Frequently asked questions
Where is Oahu?
Oahu is an island in Hawaii. Its coordinates are 21.4389, -158.0001. It lies in Nord-Amerika.
What is the weather like in Oahu akkurat nå?
It is currently 23°C (74°F) med overskyet. Luftfuktighet is 95% and wind is 6 km/h.
When is the best time til visit Oahu?
juni, juli, august, september, oktober and november offer the most comfortable conditions in Oahu, which has a Mediterranean climate. januar, mars 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 10:32 PM.
What is the nearest airport til Oahu?
The closest airports are Daniel K. Inouye International Airport (HNL), 15 km away.
What are the top things til 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. |
|---|---|
| Værmelding and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klima averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Vær 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 september 30, 2026 at 10:32 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
