South Old Bridge is a city of approximately 23,200 people in New Jersey, United States. Located in the Eastern Time Zone at 40.4°N latitude.
In 2025, South Old Bridge recorded an average annual temperature of 55°F — about 0.8°F below the 30-year normal of 56°F. The hottest day reached 103°F in June; the coldest was 4°F in January. Total precipitation was 38 inches (drier than usual). Snowfall totaled 6 inches, below the 32-inch average. The wettest month was May.
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