| This is a month wise list of most Tamil festivals in year 2013. Most of the Tamil festivals are determined based on the position of the Sun and the Moon. Tamil Festivals depend on geographic location and might differ for two cities and difference is quite noticeable for cities in different time zone. Hence one should set the location before looking into the festival list. |
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| 11 | Friday | | | 13 | Sunday | Bogi Pandigai | | 14 | Monday | | | 15 | Tuesday | Mattu Pongal | | 27 | Sunday | | |
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| 09 | Saturday | Thai Amavasai | | 17 | Sunday | | | 25 | Monday | | |
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| 10 | Sunday | | | 14 | Thursday | | | 27 | Wednesday | | |
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| 11 | Thursday | | | 14 | Sunday | | | 19 | Friday | | | 25 | Thursday | | |
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| 04 | Saturday | Agni Nakshatram Begins | | 13 | Monday | | | 14 | Tuesday | | | 15 | Wednesday | | | 24 | Friday | | | 28 | Tuesday | Agni Nakshatram Ends | |
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| 02 | Friday | Aadi Perukku | | 06 | Tuesday | Aadi Amavasai | | 09 | Friday | Andal Jayanthi | | 11 | Sunday | | | 16 | Friday | | | 20 | Tuesday | | | 24 | Saturday | Maha Sangada Hara Chathurti | | 28 | Wednesday | | |
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| 07 | Saturday | | | 09 | Monday | | | 16 | Monday | | | 23 | Monday | | |
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| 04 | Friday | | | 05 | Saturday | | | 13 | Sunday | | |
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| 07 | Saturday | | | 15 | Sunday | | | 18 | Wednesday | | | | |
January 2013 
