I have icreased "SpecularAmountMultiplier" to 9 in these inis: !_Enderal_RainLight.ini, !_Enderal_RainLightFogged.ini, !_RainStorm_heavy_E.ini and !_RainyWeather_E.ini. to fake the "Wet Look" during the rain. Correct it to your liking in the Weather window - ENB GUI, the Enviroment section. But for me it looks like a problem with the textures, too strong specular map.