http://meteorshowersonline.com/showers/iota_aquarids.html
http://www2.jpl.nasa.gov/calendar/#1008 

This stream consists of two fairly diffuse branches. The Southern Iota Aquarids possess a duration extending from July 1-September 18. The August 6 maximum (λ=133°) produces an hourly rate of 7-8 from a radiant position of RA=337°, DECL=-12°. The Northern Iota Aquarids occur during August 11- September 10. Maximum occurs on August 25 (λ=152°), at which time 5-10 meteors per hour can be seen from RA=350°, DECL=0°. Both streams produce meteors with an average magnitude slightly fainter than 3. The daily motion of the southern stream's radiant is +1.07° in RA and +0.18° in DECL, while the northern radiant moves +1.03° in RA and +0.13° in DECL.