Traditionally spring has started on the night of March 20/21, although the Met Office classes the first day of spring as March 1.
The platform holder previously confirmed plans to release Pikmin 3 during the Wii U launch window, a period it defined as beginning on November 18, 2012 and ending on March 31, 2013.
Assuming we go by the traditional spring dates and Pikmin 3 doesn't miss Wii U's launch window, the game will release on Tuesday March 26, 2013 in the US and three days later in the UK.
Check out the latest batch of Pikmin 3 screenshots.
Nintendo has confirmed a Wii U release date of November 18 in the US, and a Wii U release date of November 30 in Europe. The company has set the US Wii U price at $299 for the basic model, while the UK Wii U price starts at £230.