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Purnima (full moon) dates in Chicago, 2027

Illinois, United States · 41.88°, -87.63° · America/Chicago

Written and reviewed by The Kriya Yogi · Updated 5 October 2026

In 2027, Chicago has 12 Purnima dates, from Thu, Jan 21 to Mon, Dec 13. 8 match the Indian date, 4 fall a day earlier. The full-moon lunar day, traditionally a day for meditation, satsang and gratitude to teachers.
DateFortnightTithi window (local)SunriseDetailsvs India
Thu, Jan 21PurnimaThu, Jan 21, 10:01 AM – Fri, Jan 22, 6:18 AM7:13 AMFull moon at Fri, Jan 22, 6:18 AMTithi begins and ends between two sunrises1 day earlier
Sat, Feb 20PurnimaFri, Feb 19, 8:31 PM – Sat, Feb 20, 5:24 PM6:41 AMFull moon at Sat, Feb 20, 5:24 PMSame
Sun, Mar 21PurnimaSun, Mar 21, 7:54 AM – Mon, Mar 22, 5:46 AM6:53 AMFull moon at Mon, Mar 22, 5:46 AMTithi begins and ends between two sunrises1 day earlier
Tue, Apr 20PurnimaMon, Apr 19, 6:25 PM – Tue, Apr 20, 5:30 PM6:04 AMFull moon at Tue, Apr 20, 5:30 PMSame
Thu, May 20PurnimaWed, May 19, 5:36 AM – Thu, May 20, 6:02 AM5:27 AMFull moon at Thu, May 20, 6:02 AMSame
Fri, Jun 18PurnimaThu, Jun 17, 6:07 PM – Fri, Jun 18, 7:46 PM5:16 AMFull moon at Fri, Jun 18, 7:46 PMSame
Sun, Jul 18PurnimaSat, Jul 17, 8:21 AM – Sun, Jul 18, 10:47 AM5:31 AMFull moon at Sun, Jul 18, 10:47 AMSame
Mon, Aug 16PurnimaMon, Aug 16, 12:02 AM – Tue, Aug 17, 2:31 AM6:00 AMFull moon at Tue, Aug 17, 2:31 AM1 day earlier
Wed, Sep 15PurnimaTue, Sep 14, 4:20 PM – Wed, Sep 15, 6:05 PM6:31 AMFull moon at Wed, Sep 15, 6:05 PMSame
Fri, Oct 15PurnimaThu, Oct 14, 8:20 AM – Fri, Oct 15, 8:48 AM7:03 AMFull moon at Fri, Oct 15, 8:48 AMSame
Sat, Nov 13PurnimaFri, Nov 12, 10:27 PM – Sat, Nov 13, 9:28 PM6:38 AMFull moon at Sat, Nov 13, 9:28 PM1 day earlier
Mon, Dec 13PurnimaSun, Dec 12, 12:28 PM – Mon, Dec 13, 10:12 AM7:10 AMFull moon at Mon, Dec 13, 10:12 AMSame

What Purnima is and how it is kept: the Purnima 2027 guide. Daily sunrise and brahma muhurta: Chicago practice calendar.

Purnima in Chicago: questions

+ How many Purnima days are there in 2027 in Chicago?
12, computed for Chicago's coordinates and the America/Chicago time zone. The first falls on Thu, Jan 21 and the last on Mon, Dec 13.
+ Are Chicago Purnima dates the same as in India?
Not always. A tithi starts at the same instant everywhere, but the sunrise that decides the day happens at a different moment in Chicago. In 2027, 8 of 12 dates match the Indian (Ujjain) date, 4 fall a day earlier and 0 a day later.
+ How is the date decided?
This calendar uses the local day on which the Purnima tithi is in force at sunrise. The exact full-moon instant is also shown, because many people observe the evening the moon is fullest. 2 of this year's 12 entries for Chicago are flagged because of that. Local temples may follow a particular sampradaya's rule, so check with them for ritual purposes.
+ How accurate are these times?
Times come from truncated astronomical series and should fall within a few minutes of a full ephemeris. Near a boundary a published panchanga may assign a different day. They are for planning practice, not for precise ritual muhurta.

Other observances in Chicago

Purnima 2027 nearby