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CheckWeather US›Hawaii›McCully - Moiliili

McCully - Moiliili weather

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AmericanNOAA GFS
74°
Overcast
Feels 79° · Wind 5 mph · Humidity 79%
EuropeanECMWF
76°
Overcast
Feels 78° · Wind 12 mph · Humidity 74%

Latest for McCully - Moiliili: American (NOAA GFS): 74° Overcast · European (ECMWF): 76° Overcast.

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McCully - Moiliili weather alerts and warnings

active National Weather Service watches, warnings and advisories

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McCully - Moiliili weather in numbers

measured normals and 10 years of recorded weather

McCully - Moiliili swings 18°F across the year, from 84°F highs in August to 66°F lows in January, and December is usually the wettest month in a year that brings about 30 in of precipitation. Over 10 years of recorded weather it averages 334 days a year at 77°F or above, 26 of them at 86°F or above, 0 frost nights, and rain on 164 days.

Warmest month
August
84°F average high
Coldest month
January
66°F average low
Wettest month
December
30 in a year
Comfortable
4 months
January, February, March and April
Residents
28,000
share this forecast
Most accurate here
American
82/100 CheckWeather Score
Warm days
334 days
a year at 77°F or above
Frost nights
0 nights
a year below 32°F
Rain days
164 days
a year with 0.04 in or more

Day counts are from the ERA5 reanalysis for McCully - Moiliili’s grid square, 2016 to 2025, counted the same way for every city so the numbers compare. A reanalysis square is an area, not a weather station, so it is good for counting days and not for a single day’s record.

The weather map: all three models at once

NWS, American, European side by side around McCully - Moiliili and nearby towns.Live rain radar →
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McCully - Moiliili 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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McCully - Moiliili 10-day forecast, out to 14 days

where the models agree, and where they split

McCully - Moiliili, Hawaii (HI) is at its warmest in Aug (average highs near 84°F) and coldest in Jan (lows around 66°F), with roughly 30 in of precipitation across the year. Below, compare what NWS, American, European forecast for McCully - Moiliili 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.

McCully - Moiliili climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
77°
66°
Feb
77°
68°
Mar
78°
68°
Apr
78°
69°
May
80°
70°
Jun
81°
72°
Jul
83°
73°
Aug
84°
74°
Sep
84°
74°
Oct
84°
73°
Nov
80°
72°
Dec
77°
68°

Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.

How the weather around McCully - Moiliili has changed since 1995

McCully - Moiliili sits in the same roughly 50 km square of NASA's reanalysis as Honolulu. That square ran 1.0°F warmer in 2015-2024 than in 1995-2004. See the full 30-year picture on the Honolulu page.

Which forecast is most accurate in McCully - Moiliili?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
American logo
American ★ Best
82
/100rank #1
89±1.1°F93±2.3 mph6581% hitNOAA / NCEP (United States)College Park, Maryland, USA
European logo
European
63
/100rank #2
60±4.0°F80±6.2 mph5374% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom

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 McCully - Moiliili today?
On this page we show what NWS, American, European each forecast for McCully - Moiliili 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 McCully - Moiliili today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for McCully - Moiliili 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 McCully - Moiliili?
Over the last 30 days, the American model has been the most accurate for McCully - Moiliili (CheckWeather Score 82/100), ahead of the European at 63. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in McCully - Moiliili?
August is typically the warmest month in McCully - Moiliili, with average highs around 84°F.
How cold does McCully - Moiliili get?
The coldest month in McCully - Moiliili is January, when overnight lows average about 66°F.
How much rain does McCully - Moiliili get?
McCully - Moiliili sees roughly 30 in of precipitation a year, with December usually the wettest month.

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