Skip to main content
Every US forecast, compared
checkweather.io
CheckWeather USKailua-Kona

Kailua-Kona weather

Loading live data…

The weather map: all three models at once

NWS, American, European side by side around Kailua-Kona and nearby towns.Live rain radar →
Loading the three model maps…

Next 14 hours

consensus of the three models

14-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.

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.

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
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 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.

Nearby

More US weather