Harbor Island, SC weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Harbor Island now
Loading the National Weather Service forecast…
Harbor Island weather by the hour
Harbor Island weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Harbor Island.
This week in Harbor Island
Sunrise, sunset and moon in Harbor Island
What is the weather usually like in Harbor Island?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 89°F average high
- Januarycoldest month · 39°F average low
- 51.9 inprecipitation per year · 1,318 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Harbor Island: April–May and October–November, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station EDISTO BEACH SP, SC US (USC00382730), adjusted for the elevation of Harbor Island.
Harbor Island weather month by month
Sunrise and sunset in Harbor Island through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:21 AM | 5:40 PM | 10 h 18 min |
| February | 7:02 AM | 6:08 PM | 11 h 6 min |
| March | 7:30 AM | 7:30 PM | 12 h 0 min |
| April | 6:50 AM | 7:52 PM | 13 h 1 min |
| May | 6:21 AM | 8:14 PM | 13 h 52 min |
| June | 6:12 AM | 8:31 PM | 14 h 18 min |
| July | 6:24 AM | 8:31 PM | 14 h 6 min |
| August | 6:44 AM | 8:07 PM | 13 h 23 min |
| September | 7:04 AM | 7:29 PM | 12 h 24 min |
| October | 7:24 AM | 6:50 PM | 11 h 25 min |
| November | 6:50 AM | 5:22 PM | 10 h 32 min |
| December | 7:14 AM | 5:19 PM | 10 h 4 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in Harbor Island?
Harbor Island has a humid subtropical climate. The warmest month is July, with an average high of 89°F (32°C), and the coldest is January, with average lows of 39°F (4°C).
It gets about 51.9 inches (1,318 mm) of precipitation a year. The wettest month is August and the driest is November.
The best time to visit Harbor Island is April–May and October–November. At 0 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Harbor Island
Weather in towns near Harbor Island
Questions about the weather in Harbor Island
What is the hottest month in Harbor Island?
July, with an average high of 89°F (32°C).
What is the coldest month in Harbor Island?
January, with an average low of 39°F (4°C).
How much does it rain in Harbor Island?
About 51.9 inches (1,318 mm) a year; the wettest month is August.
Does it snow in Harbor Island?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Harbor Island?
April–May and October–November, when temperatures are most pleasant and rainy days are fewer.
What climate does Harbor Island have?
Humid subtropical (Köppen Cfa).
What is the weather like in Harbor Island in November?
Highs average 68°F and lows 48°F, with about 2.6 inches of precipitation.
What time is sunrise in Harbor Island?
Around 6:50 AM in mid-November, and sunset around 5:22 PM. Today’s exact times are shown above.
Where does this Harbor Island weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Harbor Island.
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