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On Air WeatherPets Network WPET 7 · Charleston Bureau

Charleston weather, reported by Hugh

The live pet-owner forecast for Charleston, South Carolina: walk verdicts, paw-safety context, and a very good weather anchor. Real forecast data, reported with more tail wags than your usual station.

Hugh, animated pixel weather reporter
Hugh
Senior Anchor, Charleston Bureau

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Can you walk your dog in Charleston right now?

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Waiting on live conditions.

Verdicts use the same temperature bands as our vet-sourced guides to safe walking temperatures and cold-weather limits, including the humidity bump and the 7-second pavement test.

Next 12 hours in Charleston

10-day Charleston forecast

Live forecast:  Weather. Updates every few minutes.

What Charleston weather usually means for pets

Averages tell you what to plan a wardrobe around. Here is Charleston's typical year with a dog-walk comfort rating for each month, using the same bands as the live verdict above.

MonthAvg highAvg lowTypical midday walk
January60.2°F / 16°C38.9°F / 4°CSafe — great walk weather
February63.8°F / 18°C41.6°F / 5°CSafe — great walk weather
March70.1°F / 21°C47.3°F / 8°CFine for most dogs
April77.1°F / 25°C54.5°F / 13°CCaution — shade & water
May83.6°F / 29°C63°F / 17°CRisky — early/late only
June88.5°F / 31°C70.4°F / 21°CRisky — early/late only
July91.3°F / 33°C73.7°F / 23°CDangerous — skip midday
August89.8°F / 32°C73.1°F / 23°CRisky — early/late only
September85.4°F / 30°C68.3°F / 20°CRisky — early/late only
October77.9°F / 26°C57.7°F / 14°CCaution — shade & water
November69.4°F / 21°C47.1°F / 8°CFine for most dogs
December62.7°F / 17°C41.6°F / 5°CSafe — great walk weather

Record high: 105°F / 41°C (August, at Charleston International Airport, records since 1938) · Record low: 6°F / -14°C (January, at Charleston International Airport, records since 1938) · Average snowfall: 0.3″ a year, peaking in January

Climate data: NOAA/NWS 1991-2020 U.S. Climate Normals (Charleston International Airport).

Charleston weather facts every pet owner should know

  • July afternoons in Charleston average 91.3F, above the 90F danger line for dog walks, so summer exercise belongs at dawn when lows near 73.7F are the coolest you will get.
  • Nearly half of Charleston's annual rainfall arrives from June to September as thunderstorms, so keep a towel by the door and an eye on the radar before summer walks.
  • Winter is prime walking season: January highs average 60.2F, comfortable for almost any breed without a coat.
  • Measurable snow reaches Charleston about once a decade and the yearly average is just 0.3 inches, so paw booties here are for hot pavement, not ice.
Aerial view of the Charleston, South Carolina peninsula and harbor
Aerial view of the Charleston, South Carolina peninsula and harbor. Photo: Carol M. Highsmith, Public domain, via Wikimedia Commons

Charleston pet weather questions

From June through September, average highs run 88.5F to 91.3F, past the 82F risky mark and touching the 90F danger zone. Walk at sunrise, when July lows average 73.7F, and skip midday outings entirely on humid days since humidity makes heat hit dogs harder.
Charleston's humid subtropical summers keep July nights near 73.7F, so dogs get little overnight relief and panting works less efficiently. Treat any humid day above 77F with caution, and give flat-faced breeds air conditioning instead of afternoon walks.
Rarely: January, the coolest month, still averages a high of 60.2F. Small or senior dogs may want a light coat on mornings near the 38.9F average January low, but most dogs are comfortable all winter.
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