This study evaluates the relative influence of social versus bioclimatic factors on cross-national variation in terms of the magnitude of spring suicide peaks. Time series & cross-sectional data for 28 countries were analyzed using bivariate plots & simple correlation. Suicide seasonality was positively correlated with seasonality in other kinds of social activity for the 28 countries. The article concludes that only populations in the temperate zone exhibit suicide seasonality, suggesting some contextual influence from geographical latitude. (AK)