Myrtle Beach gas and diesel ease, but diesel stays far above last year
AAA’s June 21 Myrtle Beach metro averages show regular gas and diesel easing short term, but diesel still more than $1.14 above last year.
Regular gas and diesel both eased in the Myrtle Beach metro in AAA’s June 21, 2026, price check, giving drivers some near-term relief at the pump while leaving a sharper cost problem for businesses that burn a lot of diesel.
AAA listed Myrtle Beach regular gasoline at an average of $3.371 per gallon on June 21. That was down from $3.398 a day earlier, $3.536 a week earlier and $4.178 a month earlier. The same AAA metro table showed regular gas was $2.759 a year earlier, so the current average is still higher than last June even after the recent slide.
Diesel also moved lower in the short term. AAA put the Myrtle Beach metro diesel average at $4.627 on June 21, down from $4.641 yesterday, $4.797 a week ago and $5.244 a month ago.
The year-over-year comparison is where diesel remains the bigger local budget issue. AAA’s Myrtle Beach metro diesel average was $3.483 a year ago, meaning the June 21 average was more than $1.14 higher than last year’s figure.
Why the diesel gap matters locally
For households and commuters, the drop in regular gas from last week and last month can help with weekly errands, work trips, airport runs and summer travel around the Grand Strand. But AAA’s figures are metro averages, not the exact price at any one Myrtle Beach station, so drivers can still see meaningful differences from one pump to another.
Diesel is more exposed to business budgets. Contractors, landscapers, delivery routes, service fleets, tourism operators, restaurants, repair companies and other fuel-dependent businesses may be paying less than they were last month, but the year-over-year diesel gap can still work its way into job costs, delivery charges, route planning and operating margins.
How Myrtle Beach compares with state and national averages
For context only, AAA listed South Carolina’s regular gasoline average at $3.513 on June 21, above the Myrtle Beach metro’s $3.371 average. The statewide diesel average was $4.672, also slightly above Myrtle Beach’s $4.627.
AAA’s national average on the same date was $3.938 for regular gas and $5.040 for diesel. Those national numbers help show the broader market, but they should not be read as Myrtle Beach pump prices.
The U.S. Energy Information Administration’s June 16 weekly update also showed easing week over week in both U.S. and Lower Atlantic regular gasoline and diesel prices. The Lower Atlantic region includes South Carolina, but it is still regional context rather than a Myrtle Beach-specific reading. EIA’s next gasoline and diesel update is scheduled for June 23.
What to watch at the pump
The latest AAA data points to short-term relief, not a guarantee that prices will keep falling. For local drivers, the practical move is still to compare stations before filling up, especially before longer weekend trips or work routes that require multiple tanks.
What are you seeing around Myrtle Beach? Share the highest and lowest local regular gas and diesel prices you have spotted, along with the station area and time of day.
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