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Conditions at Jacksonville Beach in January
January: Mid-Winter Cold Front Machine
January delivers some of the strongest offshore-wind windows of the year at Jacksonville Beach, with ideal conditions running 18% of the time. The average swell height is 0.6m (2ft) on a 6.8s period, a classic punchy, rideable signal generated by East Coast winter storms. The dominant swells arrive from E, NE, ESE and ENE-together accounting for roughly 54% of the wave energy-while a notable 10% share from NNE adds extra north in the water. Most waves fall in the 0.5-1m (1.5-3ft) range, with only around 3% reaching 1.5m (5ft)+, so this is more about quality than size. Water temperatures sit near 17.8°C (64°F), air temperatures average 14.7°C (58°F), and precipitation is moderate at 2.76mm/day. With winds swinging between northwest post-frontal offshore breezes and northeast pre-frontal onshore flow, timing each cold front is the key to scoring groomed waves.
Average Spot conditions at Jacksonville Beach in January
Swell history for January
Wind history for January
Swell quality
Analyze the groundswell consistency at Jacksonville Beach during January. Based on historical data, there is a % probability of groundswell occurring this month. The chart below provides a detailed breakdown of the average wave height distribution, offering deep insights into the swell quality and surf potential you can expect at Jacksonville Beach for your next trip in January.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Jacksonville Beach for January. Our analysis shows that favorable offshore or side-shore winds coincide with surfable swell approximately % of the time. The accompanying graph illustrates the average size distribution of waves during these optimal wind windows at Jacksonville Beach.