Oahu Klima and Average Vær
Klima of Oahu: average temperatures, rainfall and seasons month by month.
Klima in Oahu month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Måned | Avg high | Avg low | Regnfall | Rating |
|---|---|---|---|---|
| januar | 25° | 18° | 108 mm | ★★★★☆ |
| februar | 25° | 17° | 56 mm | ★★★★☆ |
| mars | 25° | 19° | 152 mm | ★★★☆☆ |
| april | 26° | 19° | 120 mm | ★★★★☆ |
| mai | 27° | 20° | 100 mm | ★★★★☆ |
| juni | 28° | 21° | 36 mm | ★★★★★ |
| juli | 29° | 21° | 42 mm | ★★★★★ |
| august | 29° | 22° | 61 mm | ★★★★☆ |
| september | 29° | 22° | 36 mm | ★★★★☆ |
| oktober | 29° | 21° | 34 mm | ★★★★☆ |
| november | 27° | 20° | 42 mm | ★★★★☆ |
| desember | 26° | 19° | 57 mm | ★★★★☆ |
Klima type: Mediterranean. Kilde: Open-Meteo archive (ERA5).
Recent extremes in Oahu
Høyest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Oahu compares med nearby places
Annual averages, and the difference against Oahu.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Pearl Harbor National Memorial | 10 km | 25°C | +2°C warmer | 717 mm |
| Daniel K. Inouye International Airport | 15 km | 24°C | +1°C warmer | 717 mm |
| Honolulu | 21 km | 24°C | +1°C warmer | 745 mm |
| Honolulu County | 21 km | 24°C | +1°C warmer | 745 mm |
| Area Code 808 | 21 km | 24°C | +1°C warmer | 745 mm |
Beste tid å besøke Oahu
Go in juni, juli, august, september, oktober and november. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: januar, mars and april - expect the least comfortable mix of heat, cold or rain.
What this means for Oahu
Today is cooler than average for oktober. The forecast high of 24°C is 4.9°C below the 29°C typical for this month.
A 100% chance means rain is expected over most of the area. Plan indoor alternatives. Around 45 mm is forecast, which is enough til soak trails and slow traffic.
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
- sønglasses, a brimmed hat and SPF 30+
- A packable rain shell - 6 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid januar, mars and april - historically the least comfortable months here.
Sammendrag
Oahu is an island in Hawaii. Oahu is an island known for Waikiki, Pearl Harbor and the North Shore.
Akkurat nå er det 20°C (68°F) in Oahu med mest klart. Det føles som 22°C. I dag varierer temperaturen mellom 19°C til 24°C. Sannsynligheten for nedbør er 100%. Sightseeing conditions score 7.3/10 - gode forhold.
Beste tidspunkt å besøke Oahu is juni, juli, august, september, oktober and november. Klimaet er Mediterranean. januar, mars and april tend til be the least comfortable months. august is the warmest month med average highs near 29°C, while februar is the coldest med lows near 17°C.
The closest major airport is Daniel K. Inouye International Airport (HNL), about 15 km away. Nearby highlights include Pearl Harbor National Memorial, Waikiki Beach, Kauai and Hanalei Bay.
Kort sagt. Today is cooler than average for oktober. The forecast high of 24°C is 4.9°C below the 29°C typical for this month. The best window til be outside is roughly 7 AM til 10 AM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Oahu today at 9.6/10. 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 Oahu
| Type | Island |
|---|---|
| State | Hawaii |
| Land | USA |
| Kontinent | Nord-Amerika |
| Koordinater | 21°26′20″N 158°0′0.4″W (21.4389, -158.0001) |
| Known for | Waikiki, Pearl Harbor and the North Shore |
| Lokal tid | 5:33 PM (UTC-10:00) |
| Best months | juni, juli, august, september, oktober and november |
| Klima | Mediterranean |
Vær map for Oahu
Animated model layers. Pick a layer til load it.
Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.
Explore Oahu
Every topic we hold for this place, and the same topic for the places around it.
Klima 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 Nord-Amerika.
What is the weather like in Oahu akkurat nå?
It is currently 20°C (68°F) med mest klart. Luftfuktighet is 92% 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 5:33 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 oktober 27, 2026 at 5:33 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
