Surf forecastStatisticsHistorical report

San Juan seasonal overview

Best Surf Season (May & September - October)

During these months, the percentage of offshore or light wind conditions peaks, offering the cleanest surfaces despite the small easterly swell. The average wave height hovers around 0.7-0.8m with periods of 5.9-6.1s, making for fun, groveling conditions on log-style equipment. Although the swell direction remains unfavorably from the east, the lighter winds allow for a decent rideable wave, especially at mid-tide.

Fair Surf Season (November - April)

Winter and early spring bring slightly larger average swell heights (0.8-0.9m) thanks to distant North Atlantic storms, but the dominant easterly wind regime often kicks up onshore chop. Only about 20-25% of the time do we get favorable winds, making it a gamble. The infrequent cold front passage can deliver a brief window of north-northwest swell and southerly offshore winds, but those days are rare and require careful timing.

Low Surf Season (June - August)

Summer sees the strongest easterly trade winds, blowing directly onshore and creating bumpy, messy conditions. Swell remains small (0.8-0.9m) and dominated by short-period easterly energy. With ideal wind percentages dropping to 18-22% in July and August, this is the slowest period for quality surf. June offers a slight uptick in favorable wind, but overall it's a time for small waves and wind protection strategies.

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Conditions at San Juan in February

February: Persistently Onshore Pattern

February mirrors January with an average swell of 0.9m and 6.2s period. Swell continues to be dominated by E (44.7%) and ESE (42.4%), with over 70% of significant wave energy in the 0.5-1m range. The wind regime is similarly locked in from the east: E (36%) and ESE (20.7%) combined with NE and ENE account for 82% of all winds. Ideal offshore winds from the south quadrant remain below 2% combined. The result is a month of mostly choppy, mushy surf, with only 23% favorable wind windows. The slight increase in trend from north-northwest swell? Negligible: NNW contributes 0.1% of total swell.

Average Spot conditions at San Juan in February

Swell history for February

0 - 0.5
0.5 - 1
1 - 1.5
1.5 - 2.0
2.0 - 2.5
> 2.5 m

Wind history for February

0 - 10
10 - 20
20 - 30
30 - 40
40 - 50
> 50 km/h

Swell quality

Analyze the groundswell consistency at San Juan during February. 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 San Juan for your next trip in February.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at San Juan for February. 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 San Juan.

Swell with good wind

Swell with good wind by size