There are currently a few comets observable:

C/2013 R1 (Lovejoy): A morning comet visible in binoculars
this comet begins the month in Ophiuchus at magnitude 7.1. Look for a 7' coma. It should fade by about 1.3 magnitudes, moving into Serpens Cauda by month's end

C/2012 X1 (LINEAR): A morning comet visible in small telescopes
This comet begins the month in Ophiuchus at magnitude 8.7. Look for a 4' coma. It should brighten slowly, moving into Aquila by month's end.

C/2012 K1 (PANSTARRS): A morning comet visible in a 6-inch (15 cm) telescope

C/2011 J2 (LINEAR): A northern hemisphere evening comet visible in a 12.5-inch (32 cm) telescope

290P/Jager: An evening comet visible in a 14-inch (36 cm) telescope

C/2013 V3 (Nevski): A morning comet visible in very large telescopes

C/2010 S1 (LINEAR): A morning comet visible in very large telescopes

134P/Kowal-Vavrova: A morning comet visible in very large telescopes

For more details and location visit [link to cometchasing.skyhound.com]