The ideal storage temperature for wine is between 45°F (~7°C) to 65°F (~18°C), with the optimum storage temperature for any wine being 55°F (~13°C) . However, you can safely store wine long-term in a range between about 45°F (~7°C) to 65°F (~18°C) if there is not a large change in temperature each day. Wines stored toward the upper end of the range will change a little more quickly than wines at the bottom of the range. Wines stored at the lower end of the range may accumulate some small tartrate crystals at the bottom of the bottle or around the cork, which are not harmful but can be avoided by staying more toward the center of the temperature range.

It is important to note that the temperature that you will want to store a wine might be different than the temperature you will want to serve it. For example, red wine should be served at around 55-65°F (~13-18°C) , while white wine should be served chilled, but not too cold, at around 40-50°F (~4-10°C) for light, dry white wines and sparkling wine, 50-60°F (~10-16°C) for full-bodied white wines and light fruity red wines, and 60-65°F (~16-18°C) for full-bodied red wines and port wine.

It is also important to keep the humidity level around 70 percent to prevent the cork from drying out. Avoid storing wine in a household refrigerator, as the temperature is too cold for long-term wine storage. Additionally, vibrations from the fridge or from picking up the bottle multiple times can affect the flavor.

In summary, the ideal storage temperature for wine is between 45°F (~7°C) to 65°F (~18°C), with the optimum storage temperature for any wine being 55°F (~13°C). Red wine should be served at around 55-65°F (~13-18°C), while white wine should be served chilled, but not too cold, at around 40-50°F (~4-10°C) for light, dry white wines and sparkling wine, 50-60°F (~10-16°C) for full-bodied white wines and light fruity red wines, and 60-65°F (~16-18°C) for full-bodied red wines and port wine.