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Hilton Head Island, SC vs Port Royal, SC weather comparison

Hilton Head Island

SC

Hilton Head Island and Port Royal have remarkably similar climates.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Hilton Head Island, SC and Port Royal, SC
Hilton Head IslandMetricPort Royal
218 daysSunny daysclear or partly cloudy skies218 days
44 inPrecipitationper year44 in
127 daysWet daysrain or snow per year127 days
0 inSnowfallper year0 in
58 daysHot daysabove 90 °F59 days
13 daysFreezing nightsat or below 32 °F13 days
76%Humidityaverage relative76%
68 °FAverage temperatureyear round68 °F

Monthly temperatures

Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.

Hilton Head IslandPort Royal

Daily highs

60708090JanMarMayJulSepNovHilton Head Island, Jan: 61 °FHilton Head Island, Feb: 65 °FHilton Head Island, Mar: 71 °FHilton Head Island, Apr: 77 °FHilton Head Island, May: 84 °FHilton Head Island, Jun: 89 °FHilton Head Island, Jul: 91 °FHilton Head Island, Aug: 90 °FHilton Head Island, Sep: 86 °FHilton Head Island, Oct: 79 °FHilton Head Island, Nov: 70 °FHilton Head Island, Dec: 62 °FPort Royal, Jan: 61 °FPort Royal, Feb: 64 °FPort Royal, Mar: 71 °FPort Royal, Apr: 77 °FPort Royal, May: 84 °FPort Royal, Jun: 89 °FPort Royal, Jul: 91 °FPort Royal, Aug: 90 °FPort Royal, Sep: 86 °FPort Royal, Oct: 79 °FPort Royal, Nov: 70 °FPort Royal, Dec: 62 °F

Daily lows

40506070JanMarMayJulSepNovHilton Head Island, Jan: 41 °FHilton Head Island, Feb: 44 °FHilton Head Island, Mar: 49 °FHilton Head Island, Apr: 56 °FHilton Head Island, May: 66 °FHilton Head Island, Jun: 72 °FHilton Head Island, Jul: 75 °FHilton Head Island, Aug: 74 °FHilton Head Island, Sep: 70 °FHilton Head Island, Oct: 61 °FHilton Head Island, Nov: 51 °FHilton Head Island, Dec: 44 °FPort Royal, Jan: 41 °FPort Royal, Feb: 44 °FPort Royal, Mar: 49 °FPort Royal, Apr: 56 °FPort Royal, May: 66 °FPort Royal, Jun: 72 °FPort Royal, Jul: 75 °FPort Royal, Aug: 74 °FPort Royal, Sep: 70 °FPort Royal, Oct: 61 °FPort Royal, Nov: 50 °FPort Royal, Dec: 44 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Hilton Head Island high616571778489919086797062
Port Royal high616471778489919086797062
Hilton Head Island low414449566672757470615144
Port Royal low414449566672757470615044

Monthly precipitation

Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.

Hilton Head IslandPort Royal
0.02.04.06.0JanMarMayJulSepNovHilton Head Island, Jan: 3.4 inHilton Head Island, Feb: 3.2 inHilton Head Island, Mar: 3.1 inHilton Head Island, Apr: 2.7 inHilton Head Island, May: 2.4 inHilton Head Island, Jun: 4.6 inHilton Head Island, Jul: 4.8 inHilton Head Island, Aug: 6.1 inHilton Head Island, Sep: 4.6 inHilton Head Island, Oct: 3.8 inHilton Head Island, Nov: 2.4 inHilton Head Island, Dec: 3.3 inPort Royal, Jan: 3.4 inPort Royal, Feb: 3.2 inPort Royal, Mar: 3.1 inPort Royal, Apr: 2.7 inPort Royal, May: 2.4 inPort Royal, Jun: 4.6 inPort Royal, Jul: 4.8 inPort Royal, Aug: 6.1 inPort Royal, Sep: 4.6 inPort Royal, Oct: 3.8 inPort Royal, Nov: 2.4 inPort Royal, Dec: 3.3 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Hilton Head Island3.43.23.12.72.44.64.86.14.63.82.43.3
Port Royal3.43.23.12.72.44.64.86.14.63.82.43.3

Monthly sunny days

Days each month with clear or partly cloudy skies, so compare the same month between cities.

Hilton Head IslandPort Royal
01020JanMarMayJulSepNovHilton Head Island, Jan: 17 daysHilton Head Island, Feb: 15 daysHilton Head Island, Mar: 19 daysHilton Head Island, Apr: 20 daysHilton Head Island, May: 21 daysHilton Head Island, Jun: 17 daysHilton Head Island, Jul: 18 daysHilton Head Island, Aug: 16 daysHilton Head Island, Sep: 18 daysHilton Head Island, Oct: 21 daysHilton Head Island, Nov: 20 daysHilton Head Island, Dec: 17 daysPort Royal, Jan: 17 daysPort Royal, Feb: 15 daysPort Royal, Mar: 19 daysPort Royal, Apr: 20 daysPort Royal, May: 21 daysPort Royal, Jun: 17 daysPort Royal, Jul: 18 daysPort Royal, Aug: 16 daysPort Royal, Sep: 18 daysPort Royal, Oct: 21 daysPort Royal, Nov: 20 daysPort Royal, Dec: 17 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Hilton Head Island171519202117181618212017
Port Royal171519202117181618212017

Keep comparing

Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.

Hilton Head Island vs another city

See the full Hilton Head Island, SC climate profile

More South Carolina cities

Port Royal vs another city

See the full Port Royal, SC climate profile

More South Carolina cities

About this data

Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).