The NPB announced the dates and stadiums for the 2013 All-Star Series.

• July 19 (Fri) - Sapporo Dome
• July 20 (Sat) - Jingu Stadium
• July 21 (Sun) - Extra Day
• July 22 (Mon) - Iwaki Green Stadium
• July 23 (Tues) - Extra Day

The third game of the series will once against be a part of the NPB's continued plans to help support northern Japan's rebuilding and revitalization efforts by holding an All-Star game in an area that was hit by the Tohoku Earthquake.  It should also be noted that this will be the first time an All-Star game is played in Fukushima.

Source: Sponichi 9/5/2012, Official announcement