Honestly, if you're waking up in Myrtle Beach today, Sunday, January 18, 2026, and expecting that postcard-perfect Carolina blue sky, I've got some news you might not like. It's kinda gloomy. Actually, it's more than just gloomy—it’s a bit of a wet mess out there right now.
Currently, it’s 53°F outside, but with that northwest wind kicking at 9 mph, it feels more like 49°F. If you’re heading out for an early coffee, grab the heavy hoodie. You’re gonna need it. The humidity is sitting at a thick 72%, and the sky is completely blanketed in clouds.
The real deal on today's weather in Myrtle Beach South Carolina
Don't let that 53-degree start fool you. We aren't climbing much higher. In fact, the high for today is only expected to hit 49°F later as the cold front really settles in. It’s one of those weird days where the morning might actually be the "warmest" part of the day before the rain starts dragging the temperature down.
Speaking of rain, there is a massive 92% chance of light rain throughout the daytime hours. This isn't just a "maybe" situation; it’s a "keep the umbrella in the car" situation.
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The wind is the real kicker today. It’s coming out of the northwest at about 12 mph, which makes the air feel sharp. If you’re down by the boardwalk, that breeze is going to feel significantly colder coming off the water. The UV index is a measly 1, so at least you don't have to worry about a sunburn while you're dodging puddles.
Why you shouldn't go in the water today
I see people ask this every January: "Can I still swim?"
Sure, if you’re a polar bear. The Atlantic is sitting at a brisk 51°F to 58°F depending on which buoy you're looking at. Even for seasoned surfers, that’s full-wetsuit-with-booties territory. Today's light rain and 49-degree air make the ocean look more like a dark, churning mood than a vacation spot.
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What to do when the Grand Strand gets soggy
Since the beach is basically a no-go for lounging today, you’ve got to pivot. The good news? It’s Restaurant Week here in South Carolina. This is actually the best day to be stuck inside. Most people don't realize that January 18 is the final day of the event, so you can score some pretty insane three-course deals at places like Hook & Barrel or Thoroughbreds without the three-hour summer wait times.
If you have kids, today is the day for Ripley’s Aquarium at Broadway at the Beach. It’s indoors, it’s dry, and the moving sidewalk through the shark tunnel is honestly therapeutic when it's raining outside. Or, if you're near the north end, Barefoot Landing has enough covered walkways to keep you mostly dry while you hop between shops.
Tonight’s forecast: A weird twist
As we move into tonight, things get... interesting. The rain is expected to clear out, leaving us with periodic clouds, but the temperature is going to crater. We’re looking at a low of 32°F.
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Yes, freezing.
There’s actually a 20% chance of a stray snowflake or some light wintry mix overnight. It probably won't stick—the ground is still too warm from the past few weeks—but don't be shocked if you see something white falling past the streetlights late tonight. The northwest wind will stay steady, keeping the wind chill well into the 20s by Monday morning.
Actionable steps for your Sunday in Myrtle Beach
- Ditch the beach gear: Trade the flip-flops for waterproof boots or sneakers.
- Lunch is the move: Check the Restaurant Week SC website and grab a late lunch or early dinner to take advantage of the final day of discounts.
- Stay north of the sky: If you really want a view, the SkyWheel is open and—crucially—the gondolas are climate-controlled. It’s the only way to see the ocean today without getting soaked.
- Drip the pipes: If you’re in an older rental or a vacation home, that 32°F low tonight is just cold enough to be annoying. Make sure the heat is on.
Basically, today is a day for indoor vibes, heavy sweaters, and hot seafood chowder. The sun will be back eventually, but for now, just lean into the cozy, rainy winter aesthetic of the Grand Strand.