{{Infobox month | image = | alt = | caption = | native_name = {{lang|ta|Vaikāsi}} | calendar = [[Tamil calendar]] | num = 2 | days = 31 or 32 | season = [[Vasanta (season)|Ila-venil]] (Spring) | gregorian = May–June | holidays = [[Vaikasi Visakam]] | prev_month = [[Chithirai]] | next_month = [[Aani (month)|Aani]] }} '''Vaikasi''' is the second month of the [[Tamil calendar]].<ref>{{cite web |url=https://www.timeanddate.com/calendar/tamil-calendar.html|title=Tamil Calendar – Months |work=Time and Date |access-date=1 October 2025}}</ref> The name of the month is derived from the position of the [[Moon]] near the [[Vishākhā|Vaisakha]] [[nakshatra]] (star) on the [[purnima|pournami]] ([[full moon]]) day.<ref>{{cite book|title=Heavens and Earth: The Story of Astrology Through Ages and Cultures|author=Garima Garg|year=2022|isbn=978-9-354-92705-8|publisher=[[Penguin Random House]]|page=75}}</ref> The month corresponds to [[Vasanta (season)|ila-venil]] (spring) season, and falls in May–June in the [[Gregorian calendar]].<ref>{{cite book|title=The Circle of Six Seasons|author=Martha Ann Selby|year=2003|isbn=978-0-141-00772-4|page=xxix}}</ref><ref name="Siddhantha">{{cite book|title=The Siddhantas and the Indian Calendar|author1=Robert Sewell|author2=John Faithful Fleet|year=1989|publisher=[[Asian Educational Services]]|page=334}}</ref>
In the [[Hindu calendar|Hindu]] [[lunar calendar]], it corresponds to the second month of [[Vaishakha]], falling in the Gregorian months of April–May.<ref name="Siddhantha"/>
In the Hindu [[solar calendar]], it corresponds to the second month of [[Vṛṣabha]] and begins with the [[Sun]]'s entry into [[Taurus (constellation)|Taurus]].<ref>{{cite web|url=https://www.hindunet.org/home/interfaith_relations/hirani/hindu_panchang.htm |title=Hindu Panchang|work=Hindu Net|access-date=1 October 2025}}</ref>
In the [[Vaishnav]] calendar, it corresponds to the second month of [[Madhusudanah]].<ref>{{cite web |url=https://www.vaisnavacalendar.info/aboutcalendar.htm|title=Vaisnava Calendar Reminder Services – About Calendar |work=Vaisnava Calendar |access-date=1 October 2025}}</ref><ref>{{cite web |url=https://www.isvara.org/archive/on-the-calendar-by-srila-prabhupada/ |title=Something about the Vaisnava Calendar |work=ISVARA |access-date=1 October 2025}}</ref>
== Festivals == [[Vaikasi Visakam]] commemorates the birth of [[Hindu]] [[Hindu deity|god]] [[Murugan]]. It falls on the day the [[Moon]] transits the [[Visaka]] [[nakshatra]]m in the month of Vaikasi.<ref name="India">{{cite book|title=Indian Encyclopedia|author=Subodh Kant|isbn=978-8-177-55257-7|year=2002|publisher=Cosmo Publications|page=7821}}</ref><ref>{{cite web|title=Vaikasi Visakam: Date, Time, Significance |url=https://timesofindia.indiatimes.com/religion/festivals/vaikasi-visakam-2024-date-time-rituals-and-how-it-is-celebrated/articleshow/110325901.cms|access-date=1 June 2024|newspaper=[[The Times of India]] }}</ref>
==See also== {{Portal|Hinduism}} * [[Astronomical basis of the Hindu calendar]] * [[Hindu astronomy]]
==References== {{Reflist}}
{{Tamil calendar}}
[[Category:Months of the Tamil calendar|*02]]