The Eta Aquarids is an above average shower, capable of producing up to 60 meteors per hour at its peak. Most of the activity is seen in the Southern Hemisphere. In the Northern Hemisphere, the rate can reach about 30 meteors per hour. It is produced by dust particles left behind by comet Halley, which has known and observed since ancient times. The shower runs annually from April 19 to May 28. It peaks this year on the night of May 6 and the morning of the May 7. The waning gibbous moon will block most of the fainter meteors this year, but you should be able to catch quite A few good ones if you are patient. Best viewing will be from a dark location after midnight. Meteors will radiate from the constellation Aquarius, but can appear anywhere in the sky.
http://www.seasky.org
In the northern hemisphere, the longest day of the year when the Sun is farthest north. The summer solstice marks the first day of the season of summer. In the southern hemisphere, this is your winter solstice, marking the shortest day of the year. The declination of the Sun on the (northern) summer solstice is known as the tropic of cancer (23° 27′).
http://scienceworld.wolfram.com/astronomy/SummerSolstice.html