Baltrum, Germany, is a surf spot with predominantly wind-driven conditions, offering limited ground swell throughout the year. The best months for surfers fall between late autumn and early winter, specifically from October to December, when wind swell frequencies peak at 52-58%, and mean swell sizes reach 0.8-0.9 meters. While ground swell remains minimal (1% or less), these months also see slightly better consistency in wave activity compared to the rest of the year. However, wind conditions are consistently poor across all months, with good winds occurring only 2-4% of the time and bad winds dominating at 96-98%. Summer months (May-August) are the least favorable due to lower wind swell percentages (39-40%) and smaller swell sizes (0.6m). Early spring (March-April) and late winter (January-February) provide marginal improvements over summer but still suffer from frequent flat spells (high "No Swell" percentages). Overall, Baltrum is a spot heavily dependent on short-period wind swell rather than clean ground swell, making it best suited for surfers willing to chase smaller, choppier waves during the colder months when wind swell activity is slightly more reliable.