San Diego County gas prices have reached their highest since October 2023, driven by disruptions in global oil supply.

SAN DIEGO COUNTY, Calif. — The average price of a gallon of self-serve regular gasoline in San Diego County rose Tuesday to its highest amount since Oct. 9, 2023, increasing 1 cent to $5.947.

The average price has risen 40 of the past 41 days, increasing $1.34, including four-tenths of a cent on Monday, according to figures from the AAA and Oil Price Information Service. It increased for 36 consecutive days, was unchanged on Friday, and resumed increasing the following day.

The average price is 5.7 cents more than one week ago, $1.261 higher than one month ago and $1.029 greater than one year ago. It is 48.8 cents less than the record $6.435 set on Oct. 5, 2022.

Prices were rising slightly in line with seasonal norms before the joint U.S./Israel attack on Iran on Feb. 28 sent oil prices higher and drastically accelerated increases at the gas pump.

The national average price topped $4 for the first time since Aug. 10, 2022, rising 2.8 cents to $4.018. It is 4.1 cents more than one week ago, $1.036 higher than one month ago and 85 cents greater than one year ago.

The national average price is 99.8 cents less than the record $5.016 set on June 14, 2022.

“Gasoline and diesel prices continue to climb to multi-year highs as the effective closure of the Strait of Hormuz curtails the flow of millions of barrels of crude oil each day,” Patrick De Haan, head of petroleum analysis at GasBuddy, which provides real-time gas price information from more than 150,000 stations, said in a statement released Monday.

“The situation remains highly volatile and unpredictable, but upward pressure on fuel prices is likely to persist as long as global oil supplies are constrained by the continued disruption in the strait.

“Americans have already spent nearly $8 billion more on gasoline over the past month, a trend that poses growing risks to the broader economy, while surging diesel prices may begin to reaccelerate inflation.”

Search map for current gas prices in San Diego County:Â