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CheckWeather US›Ha'iku

Ha'iku weather

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AmericanNOAA GFS
73°
Clear
Feels 73° · Wind 16 mph · Humidity 82%
EuropeanECMWF
77°
Mainly clear
Feels 75° · Wind 21 mph · Humidity 72%

Latest for Ha'iku: American (NOAA GFS): 73° Clear · European (ECMWF): 77° Mainly clear.

The weather map: all three models at once

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

consensus of the three models

7-day forecast

where the models agree, and where they split

Ha'iku, HI is at its warmest in Jul (average highs near 83°F) and coldest in Jan (lows around 67°F), with roughly 26 in of precipitation across the year. Below, compare what NWS, American, European forecast for Ha'iku right now, and see exactly where they disagree.

Ha'iku climate by month

average daytime high and overnight low across a typical year
Jan
78°
67°
Feb
76°
68°
Mar
77°
68°
Apr
78°
70°
May
80°
71°
Jun
82°
73°
Jul
83°
74°
Aug
83°
75°
Sep
83°
75°
Oct
83°
74°
Nov
80°
72°
Dec
78°
70°

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
Behind Apple Weather, Windy
88
/100rank #1
85±1.5°F96±1.2 mph8592% hitECMWF — European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
Behind Windy & many free apps
74
/100rank #2
82±1.8°F92±2.6 mph5374% 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 40 cities. Lower error means a higher score. The apps you know (AccuWeather, Apple Weather, The Weather Channel) are built on these models.

Common questions

What's the weather in Ha'iku today?
On this page we show what NWS, American, European each forecast for Ha'iku 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 Ha'iku today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Ha'iku 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 Ha'iku?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Ha'iku 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 Ha'iku?
July is typically the warmest month in Ha'iku, with average highs around 83°F.
How cold does Ha'iku get?
The coldest month in Ha'iku is January, when overnight lows average about 67°F.
How much rain does Ha'iku get?
Ha'iku sees roughly 26 in of precipitation a year, with February usually the wettest month.

The forecasts Americans check

The two biggest apps keep their model a secret, so we can't show their numbers, only link you to them. The National Weather Service is public, so its data sits right in the comparison above.

NWSNational Weather Service
Open model · shown above ✓AWAccuWeather
Closed model · open ↗↗TWCThe Weather Channel
Closed model · open ↗↗

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