Considered one of the best showers each year, the Perseids produces about 60 meteors per hour. Starting at mid to late evening on the nights of August 11/12 and 12/13, watch for the Perseid meteors to streak across this short summer night from late night until dawn, with only a little interference from the waning crescent moon.
The date (in the northern hemisphere) when night and day are nearly of the same length and Sun crosses the celestial equator (i.e., declination 0) moving southward (in the northern hemisphere).
http://scienceworld.wolfram.com/astronomy/AutumnalEquinox.html
Watch before dawn on Sunday. With the waxing crescent moon setting before midnight (on October 20), that means a dark sky between midnight and dawn, or during the best viewing hours for the Orionid meteors. On a dark, moonless night, the Orionids exhibit a maximum of about 15 meteors per hour. These fast-moving meteors occasionally leave persistent trains and bright fireballs. If you trace these meteors backward, they seem to come from the Club of the famous constellation Orion the Hunter. You might know Orion’s bright, ruddy star Betelgeuse. The radiant is north of Betelgeuse. The Orionids have a broad and irregular peak that isn’t easy to predict. More meteors tend to fly after midnight, and the Orionids are typically at their best in the wee hours before dawn. The best viewing for the Orionids in 2012 will probably be before dawn on October 21..