11°C is supposed to be the perfect storage temperature for wine. However anything between 5°C and 18°C will be ok for most styles of wines, provided it is kept at a stable temperature throughout. While storing bottles of wine in your hotel, make sure that there is not much temperature variation on a daily basis. If there is an rapid change in temperature or it keeps changing daily, the cork can shrink and expand, which can cause the wine to oxidize due to contact with air.
You may have heard to serve white wine chilled and red wine at room temperature. However room temperature varies across the country. So as a general guide, serve sparkling wine at 5 to 7 degree Celsius, white wine at 7 to 10 degree Celsius and red wine at 12 to 15 degree Celsius.