The handling of dry bulk, the Latvian seaport's leading trade, advanced by 20.6% year-on-year to 14.5mt.
With 7.55mt (+4.8% yoy), general cargo came in second, followed by 1.47mt of liquid bulk (-35.3% yoy).
Riga's container traffic rose by 10.8% yoy to 460,689 TEUs.
The port also welcomed 75,737 passengers (vs 2,011 in 2011).