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August Weather in Myrtle Beach: What to Expect & The Best Things to Do on the Water

Beachfront with Ferris wheel, pier, and buildings at sunrise.

If you’re planning a summer vacation to Myrtle Beach, Murrells Inlet, or anywhere along South Carolina’s Grand Strand, August is one of the best months to enjoy everything the coast has to offer. From warm Atlantic waters and sunny beach days to exciting deep sea fishing charters, dolphin cruises, boat rentals, and eco tours, there’s no shortage of outdoor adventures.

Understanding what the weather is typically like in August can help you pack accordingly and make the most of your visit. Whether you’re spending the day on the beach or exploring the beautiful waterways with Crazy Sister Marina, August offers endless opportunities to experience the South Carolina coast.

What Is the Weather Like in Myrtle Beach in August?

August is typically one of the warmest months of the year in Myrtle Beach. Visitors can expect classic coastal summer weather that’s perfect for boating, fishing, and spending time on the water.

Average August Weather

  • Average daytime highs: 86–89°F
  • Average nighttime lows: 72–75°F
  • Ocean temperature: 81–84°F
  • Humidity: High
  • Rainfall: Brief afternoon showers and thunderstorms are common

Although afternoon thunderstorms occasionally develop, they are usually fast-moving and often give way to sunshine shortly afterward. Morning hours generally offer calmer conditions, making them ideal for outdoor excursions and water activities.

Sunshine, Heat & UV Tips

August brings abundant sunshine and some of the highest UV levels of the year. Visitors should plan ahead by bringing:

  • Reef-safe sunscreen
  • Sunglasses with UV protection
  • Lightweight, breathable clothing
  • Hats or visors
  • Plenty of water to stay hydrated

Taking breaks during the hottest part of the afternoon can help you stay comfortable while still enjoying everything Myrtle Beach has to offer.

Hurricane Season in August

August falls within the Atlantic hurricane season, but that doesn’t mean visitors should expect storms during their vacation. Most August days feature the warm, sunny weather the Grand Strand is known for.

As with any coastal destination, it’s simply a good idea to monitor the weather forecast before traveling. Professional operators like Crazy Sister Marina continuously monitor marine forecasts and weather conditions to help ensure guests enjoy safe and enjoyable experiences on the water.

Why August Is One of the Best Months for Boating

Warm water temperatures and long daylight hours make August one of the most popular months for getting out on the water in Murrells Inlet.

Whether you’re looking for adventure or relaxation, boating provides a refreshing escape from the summer heat while showcasing some of the most beautiful scenery along the South Carolina coast.

Popular August boating activities include:

Early morning departures often provide the calmest water conditions and cooler temperatures, making them especially popular during the summer months.

Experience August with Crazy Sister Marina

Located in the heart of Murrells Inlet, Crazy Sister Marina has been helping families create unforgettable coastal memories for more than 50 years.

Whether you’re an experienced angler or visiting the Grand Strand for the first time, there’s an adventure for everyone.

Choose from:

Every trip offers a unique opportunity to experience the beauty of Murrells Inlet while enjoying refreshing ocean breezes, incredible wildlife, and unforgettable coastal scenery.

Wildlife You May See in August

Late summer is an excellent time to spot wildlife throughout Murrells Inlet and the surrounding waterways.

Depending on your excursion, you may encounter:

  • Atlantic bottlenose dolphins
  • Brown pelicans
  • Great blue herons
  • Ospreys
  • Egrets
  • Loggerhead sea turtles (during nesting season)
  • Various coastal fish species

The warm water also creates excellent fishing opportunities, making August one of the busiest months for both recreational anglers and charter fishing trips.

Tips for Visiting Myrtle Beach in August

To make the most of your vacation:

  • Book boat tours and fishing charters early, as August is a popular travel month.
  • Plan outdoor activities during the morning or evening for cooler temperatures.
  • Stay hydrated throughout the day.
  • Wear lightweight clothing and comfortable footwear.
  • Bring a waterproof phone case for boating adventures.
  • Check the local forecast before heading out.
  • Reserve popular excursions in advance, especially during weekends.

Frequently Asked Questions

Is August a good time to visit Myrtle Beach?

Yes. August offers warm ocean temperatures, beautiful beach weather, and plenty of opportunities for boating, fishing, dolphin watching, and family-friendly attractions throughout the Grand Strand.

Is the ocean warm enough to swim in August?

Absolutely. Ocean temperatures typically range from 81–84°F, making swimming, snorkeling, and water sports extremely comfortable.

Do afternoon thunderstorms ruin vacation plans?

Not usually. Summer storms are often brief and localized, with sunshine returning shortly afterward. Morning excursions are typically the best choice for outdoor activities.

What are the best things to do in Myrtle Beach during August?

Some of the most popular August activities include visiting the beach, taking a Dolphin & Sealife Cruise, enjoying a deep sea fishing charter, renting a pontoon boat or Carolina Skiff, exploring Murrells Inlet, riding jet skis, and taking a family-friendly pirate adventure with Crazy Sister Marina.

Plan Your August Adventure

August is one of the best times of year to experience everything the Grand Strand has to offer. Warm Atlantic waters, beautiful coastal scenery, and exciting outdoor adventures make it the perfect month for creating lasting vacation memories.

Whether you’re interested in deep sea fishing, dolphin cruises, boat rentals, jet ski rentals, eco tours, or family-friendly adventures, Crazy Sister Marina is your one-stop destination for unforgettable experiences on the water. Located in scenic Murrells Inlet, just minutes from Myrtle Beach, Crazy Sister Marina makes it easy to enjoy the very best of South Carolina’s beautiful coast.

Saltwater Marsh Eco Excursion From $32

Discover Murrells Inlet and its beautiful saltwater marsh estuary as we navigate the tranquil waters observing native and migratory birds and underwater sea-life guided by a naturalist. While onboard, guests participate with a live demonstration that includes local crabs and pulling a sample dredge from the bottom of the creek bed directly into the touch tank for all to observe.