Oahu Väder Prognos
Oahu weather: 24°C, mulet. Varje timme forecast, 14-day outlook, UV, air quality and the best time och visit.
Risk assessment for Oahu
Derived from the current forecast window - not an official warning.
Peak gusts of 54 km/h and 0 thunderstorm days in the next 16 days.
Wettest single day forecast at 6 mm, 51 mm across the window. Flash flooding risk rises sharply above 50 mm in a day.
16-day forecast for Oahu
Max / Min; Nederb.; UV
| Dag | Förhållanden | Max / Min | Nederb. | Vind | UV |
|---|---|---|---|---|---|
| tor, sep 17 | 🌦️ Light drizzle | 29° / 23° | 100% · 3 mm | 19 km/h | 6 |
| fre, sep 18 | 🌦️ Duggregn | 29° / 23° | 100% · 3 mm | 21 km/h | 9 |
| lör, sep 19 | 🌦️ Duggregn | 28° / 23° | 86% · 3 mm | 21 km/h | 9 |
| sön, sep 20 | 🌦️ Light drizzle | 29° / 23° | 66% · 1 mm | 21 km/h | 8 |
| mån, sep 21 | 🌦️ Light drizzle | 28° / 23° | 78% · 2 mm | 18 km/h | 8 |
| tis, sep 22 | 🌦️ Light drizzle | 29° / 23° | 88% · 3 mm | 18 km/h | 7 |
| ons, sep 23 | 🌦️ Light drizzle | 28° / 23° | 83% · 4 mm | 17 km/h | 8 |
| tor, sep 24 | 🌦️ Light drizzle | 28° / 22° | 88% · 2 mm | 17 km/h | 5 |
| fre, sep 25 | 🌦️ Light drizzle | 27° / 22° | 73% · 4 mm | 18 km/h | 8 |
| lör, sep 26 | 🌦️ Light drizzle | 26° / 22° | 72% · 6 mm | 21 km/h | 8 |
| sön, sep 27 | 🌦️ Light drizzle | 27° / 22° | 69% · 5 mm | 21 km/h | 8 |
| mån, sep 28 | 🌦️ Light drizzle | 27° / 22° | 63% · 3 mm | 18 km/h | 8 |
| tis, sep 29 | 🌦️ Light drizzle | 27° / 21° | 52% · 4 mm | 20 km/h | 8 |
| ons, sep 30 | 🌦️ Light drizzle | 27° / 21° | 48% · 4 mm | 19 km/h | 8 |
| tor, okt 1 | 🌦️ Light drizzle | 27° / 21° | 55% · 3 mm | 16 km/h | 7 |
| fre, okt 2 | 🌦️ Light drizzle | 28° / 21° | 32% · 1 mm | 20 km/h | 8 |
What this means for Oahu
Today is about average for september. The forecast high of 29°C is in line med 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 och augusti.
The gap between the warmest and coldest month averages 4°C - an unusually even climate through the year.
Se prognosen för Oahu per tidsintervall
Oahu weather - more answers
Explore Oahu
Every topic we hold for this place, and the same topic for the places around it.
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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 Nordamerika.
What is the weather like in Oahu just nu?
It is currently 24°C (75°F) med mulet. Luftfuktighet is 96% and wind is 11 km/h.
When is the best time och visit Oahu?
juni, juli, augusti, september, oktober and november offer the most comfortable conditions in Oahu, which has a Mediterranean climate. januari, 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 1:17 PM.
What is the nearest airport och Oahu?
The closest airports are Daniel K. Inouye International Airport (HNL), 15 km away.
What are the top things och 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. |
|---|---|
| Prognos and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klimat averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Väder 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 18, 2026 at 1:17 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
