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CheckWeather USWaianae

Waianae weather

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Waianae weather alerts and warnings

active National Weather Service watches, warnings and advisories

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Waianae weather in numbers

from 30 years of measured normals

Waianae swings 22°F across the year, from 89°F highs in August to 67°F lows in January, and May is usually the wettest month in a year that brings about 25 in of precipitation.

Warmest month
August
89°F average high
Coldest month
January
67°F average low
Wettest month
May
25 in a year
Below freezing
Never
overnight lows stay above 32°F
Comfortable
Rarely
highs outside 60-78°F
Residents
13,000
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The weather map: all three models at once

NWS, American, European side by side around Waianae and nearby towns.Live rain radar →
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Waianae hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Waianae 10-day forecast, out to 14 days

where the models agree, and where they split

Waianae, Hawaii (HI) is at its warmest in Aug (average highs near 89°F) and coldest in Jan (lows around 67°F), with roughly 25 in of precipitation across the year. Below, compare what NWS, American, European forecast for Waianae right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United States before you trust any single number.

Waianae climate by month

average daytime high and overnight low across a typical year
Jan
79°
67°
Feb
79°
68°
Mar
80°
68°
Apr
81°
69°
May
82°
70°
Jun
86°
72°
Jul
88°
73°
Aug
89°
73°
Sep
89°
73°
Oct
87°
72°
Nov
84°
71°
Dec
82°
68°

Which forecast is most accurate in the US?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
89
/100rank #1
88±1.2°F96±1.2 mph8491% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
73
/100rank #2
82±1.8°F93±2.3 mph4972% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1999 cities. Lower error means a higher score. See which forecast model is most accurate in United States, how we measure forecast accuracy, or which model each weather app uses.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United States? Give each 1 to 5 stars.

NWSNational Blend (NBM)
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AmericanNOAA GFS
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EuropeanECMWF
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Common questions

What's the weather in Waianae today?
On this page we show what NWS, American, European each forecast for Waianae today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Waianae today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Waianae and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Waianae?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Waianae forecast is reliable, and when they split you should expect surprises. See our tested US accuracy scoreboard for how the models compare.
What is the warmest month in Waianae?
August is typically the warmest month in Waianae, with average highs around 89°F.
How cold does Waianae get?
The coldest month in Waianae is January, when overnight lows average about 67°F.
How much rain does Waianae get?
Waianae sees roughly 25 in of precipitation a year, with May usually the wettest month.

Nearby

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