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Waimalu weather

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The weather map: all three models at once

NWS, American, European side by side around Waimalu and nearby towns.Live rain radar →
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Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split

Waimalu, HI is at its warmest in Sep (average highs near 86°F) and coldest in Jan (lows around 66°F), with roughly 26 in of precipitation across the year. Below, compare what NWS, American, European forecast for Waimalu 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.

Waimalu climate by month

average daytime high and overnight low across a typical year
Jan
80°
66°
Feb
78°
67°
Mar
79°
67°
Apr
80°
68°
May
81°
69°
Jun
83°
71°
Jul
84°
72°
Aug
85°
73°
Sep
86°
72°
Oct
86°
71°
Nov
82°
70°
Dec
80°
67°

Which forecast is most accurate in the US?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
89
/100rank #1
87±1.3°F96±1.2 mph8592% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
73
/100rank #2
81±1.9°F93±2.2 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.

Common questions

What's the weather in Waimalu today?
On this page we show what NWS, American, European each forecast for Waimalu 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 Waimalu today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Waimalu 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 Waimalu?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Waimalu 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 Waimalu?
September is typically the warmest month in Waimalu, with average highs around 86°F.
How cold does Waimalu get?
The coldest month in Waimalu is January, when overnight lows average about 66°F.
How much rain does Waimalu get?
Waimalu sees roughly 26 in of precipitation a year, with May usually the wettest month.

Nearby

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