both温and 暖和 have the same meaning, warm.But when you use 温,tend to discribe about temperature you need plus some other word.e.g. 温水means the warm water. 温床means the warm bed with the right temperature. 暖和tend to discribe circumstance.When you use 暖和 to discribe something we say,暖和的地方，a warm place ,暖和的被子。a warm quilt.