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Every US forecast, compared
CheckWeather US›Kailua-Kona

Kailua-Kona weather

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AmericanNOAA GFS
79°
Clear
Feels 86° · Wind 1 mph · Humidity 72%
EuropeanECMWF
76°
Mainly clear
Feels 84° · Wind 1 mph · Humidity 82%

Latest for Kailua-Kona: American (NOAA GFS): 79° Clear · European (ECMWF): 76° Mainly clear.

The weather map: all three models at once

NWS, American, European side by side around Kailua-Kona 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

Kailua-Kona, HI is at its warmest in Aug (average highs near 83°F) and coldest in Feb (lows around 66°F), with roughly 46 in of precipitation across the year. Below, compare what NWS, American, European forecast for Kailua-Kona right now, and see exactly where they disagree.

Kailua-Kona climate by month

average daytime high and overnight low across a typical year
Jan
79°
67°
Feb
77°
66°
Mar
78°
68°
Apr
79°
70°
May
80°
71°
Jun
80°
72°
Jul
82°
72°
Aug
83°
72°
Sep
82°
73°
Oct
82°
72°
Nov
81°
70°
Dec
80°
68°

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 Kailua-Kona today?
On this page we show what NWS, American, European each forecast for Kailua-Kona 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 Kailua-Kona today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Kailua-Kona 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 Kailua-Kona?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Kailua-Kona 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 Kailua-Kona?
August is typically the warmest month in Kailua-Kona, with average highs around 83°F.
How cold does Kailua-Kona get?
The coldest month in Kailua-Kona is February, when overnight lows average about 66°F.
How much rain does Kailua-Kona get?
Kailua-Kona sees roughly 46 in of precipitation a year, with April 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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