Seal Beach • Statistics for January

January: Midwinter Momentum

The heart of winter delivers Seal Beach's most reliable mix of swell and wind. The wave rose is dominated by westerly energy - W at 49.9%, WSW at 33.4% and SW at 10.7% - with the 0.5-1m band making up roughly 71% of all readings. The average wave height sits near 2-3ft (0.8m), but the 12.1s average period gives those waves real push, so a 2-3ft (0.5-1m) swell wraps into the SSW-facing sandbars with a clean, hollow-ish shoulder. Larger 5-8ft (1.5-2.5m) swells are rare (around 5%) but not absent. The wind story is far more favorable than summer: ideal conditions hold about 47% of the time, with NE and NNE offshore flows most common. When high pressure sets up over the interior, early mornings can be glassy under sunny skies before the west/southwest sea breeze tries to mess things up by afternoon. Water temperature sits at 14.1°C and air temps average 14.6°C, so don't forget the hood and booties for dawn sessions.