Certain example embodiments of this invention relate to photovoltaic modules that include high contact angle coatings on one or more outermost major surfaces thereof, and/or associated methods. In certain example embodiments, the high contact angle coatings advantageously reduce the likelihood of electrical losses through parasitic leakage of the electrical current caused by moisture on surfaces of the photovoltaic modules, thereby potentially improving the efficiency of the photovoltaic devices. In certain example embodiments, the high contact angle coatings may be nitrides and/or oxides of or including Si, Ti, Ta, TaCr, NiCr, and/or Cr; hydrophobic DLC; and/or polymer-based coatings. The photovoltaic modules may be substrate-type modules or superstrate-type modules in different example embodiments.