Hote Matsuri is held on March 10. Shiogama, Japan. This event in the first decade of the month march is annual.
Girls Day or Hinamatsuri in Japan on March 3 (Momo-no Sekku);
Kasuga Matsuri on March 13 (Kasuga Grand Shrine, Nara, Japan);
White Day in Japan on March 14 (also South Korea, Vietnam, Taiwan, Hong Kong, Malaysia and China on March 14, one month after Valentine's Day - ホワイトデ);
Hōnen Matsuri in Japan on March 15 (豊年祭, "Harvest Festival" is a fertility festival celebrated every year on March 15 in Japan. Hōnen means prosperous year in Japanese, implying a rich harvest, while a matsuri is a festival);
Vernal Equinox Day in Japan on March 21 (it’s a public holiday, and a time for traditions and an appreciation of the world at large);
Broadcasting Day in Japan on March 22 (On March 22, 1925, Japan's first broadcaster took to the airwaves.)