The seasonal availability of mandarins varies by variety and growing region. However, most mandarins are harvested during the winter months. In the U.S., the peak harvest season for mandarins is usually between November and April. Some of the most common tangerine varieties and their harvest times are Satsuma: harvest between September and January. Clementine: Harvest from November to January. Tangerine: Harvest from November to January. Tangerine (honey): Harvest from January to March. Tangerine (Murcott): Harvest from February to April. Tangerine (Ortanique): Harvest from January to March.