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CheckWeather USHilton Head Island

Hilton Head Island weather

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NWSNational Blend (NBM)
87°
Mainly clear
Feels 99° · Wind 4 mph · Humidity 72%
AmericanNOAA GFS
89°
Clear
Feels 98° · Wind 6 mph · Humidity 57%
EuropeanECMWF
86°
Light showers
Feels 96° · Wind 3 mph · Humidity 64%

Latest for Hilton Head Island: NWS (National Blend (NBM)): 87° Mainly clear · American (NOAA GFS): 89° Clear · European (ECMWF): 86° Light showers.

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Hilton Head Island weather alerts and warnings

active National Weather Service watches, warnings and advisories

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Hilton Head Island weather in numbers

from 30 years of measured normals

Hilton Head Island swings 41°F across the year, from 88°F highs in July to 47°F lows in January, and August is usually the wettest month in a year that brings about 49 in of precipitation.

Warmest month
July
88°F average high
Coldest month
January
47°F average low
Wettest month
August
49 in a year
Below freezing
Never
overnight lows stay above 32°F
Comfortable
4 months
January, February, March and April
Residents
41,000
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The weather map: all three models at once

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

where the models agree, and where they split

Hilton Head Island, South Carolina (SC) is at its warmest in Jul (average highs near 88°F) and coldest in Jan (lows around 47°F), with roughly 49 in of precipitation across the year. Below, compare what NWS, American, European forecast for Hilton Head Island 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.

Hilton Head Island climate by month

average daytime high and overnight low across a typical year
Jan
60°
47°
Feb
64°
51°
Mar
68°
56°
Apr
73°
61°
May
79°
68°
Jun
85°
74°
Jul
88°
77°
Aug
87°
77°
Sep
82°
72°
Oct
76°
63°
Nov
69°
57°
Dec
60°
49°

Which forecast is most accurate in Hilton Head Island?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
84
/100rank #1
90±1.0°F92±2.5 mph7184% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
69
/100rank #2
82±1.8°F93±2.1 mph3665% 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.

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 Hilton Head Island today?
On this page we show what NWS, American, European each forecast for Hilton Head Island 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 Hilton Head Island today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Hilton Head Island 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 Hilton Head Island?
Over the last 30 days, the European model has been the most accurate for Hilton Head Island (CheckWeather Score 84/100), ahead of the American at 69. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Hilton Head Island?
July is typically the warmest month in Hilton Head Island, with average highs around 88°F.
How cold does Hilton Head Island get?
The coldest month in Hilton Head Island is January, when overnight lows average about 47°F.
How much rain does Hilton Head Island get?
Hilton Head Island sees roughly 49 in of precipitation a year, with August usually the wettest month.

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