Catholic liturgical calendar · US

December 2027 Liturgical Calendar

December 2027 moves from Advent (weeks 1–4) into Christmas Time on December 25. Solemnities and feasts: The Immaculate Conception (Dec 8), Christmas (Dec 25), The Holy Family of Jesus, Mary and Joseph (Dec 26), St. John (Dec 27) and Holy Innocents, Martyrs (Dec 28), with 4 memorials. Sundays follow Year C of the Lectionary, weekdays Cycle II.

Updated October 20, 2026

In this month

2 solemnities
3 feasts
4 memorials
4 Sundays

Colors

18 violet
10 white
2 red
1 rose

Day by day

December 2027, day by day
Date	Celebration	Rank	Color	Lectionary	Saint of the day	Mass readings (US)
1Wed	Wednesday of the First Week of Advent	Weekday	Violet	Cycle II	Saint of the daySt. Edmund Campion	FirstIsaiah 25:6-10a PsalmPsalm 23:1-3a, 3b-4, 5, 6 GospelMatthew 15:29-37
2Thu	Thursday of the First Week of Advent	Weekday	Violet	Cycle II	Saint of the daySt. Bibiana	FirstIsaiah 26:1-6 PsalmPsalm 118:1 and 8-9, 19-21, 25-27a GospelMatthew 7:21, 24-27
3Fri	St. Francis Xavier,Priest	Memorial	White	Cycle II	Saint of the daySt. Francis Xavier	FirstIsaiah 29:17-24 PsalmPsalm 27:1, 4, 13-14 GospelMatthew 9:27-31
4Sat	Saturday of the First Week of Advent	Weekday	Violet	Cycle II	Saint of the daySt. John Damascene	FirstIsaiah 30:19-21, 23-26 PsalmPsalm 147:1-2, 3-4, 5-6 GospelMatthew 9:35—10:1, 5a, 6-8
5Sun	Second Sunday of Advent	Sunday	Violet	Year C	Saint of the daySt. Sabas	FirstBaruch 5:1-9 PsalmPsalm 126:1-2, 2-3, 4-5, 6 SecondPhilippians 1:4-6, 8-11 GospelLuke 3:1-6
6Mon	Monday of the Second Week of Advent	Weekday	Violet	Cycle II	Saint of the daySt. Nicholas	FirstIsaiah 35:1-10 PsalmPsalm 85:9ab and 10, 11-12, 13-14 GospelLuke 5:17-26
7Tue	St. Ambrose,Bishop and Doctor of the Church	Memorial	White	Cycle II	Saint of the daySt. Ambrose	FirstIsaiah 40:1-11 PsalmPsalm 96:1-2, 3 and 10ac, 11-12, 13 GospelMatthew 18:12-14
8Wed	Immaculate Conception of the Blessed Virgin Mary	Solemnity	White	Year C	Saint of the dayBlessed Virgin Mary	FirstGenesis 3:9-15, 20 PsalmPsalm 98:1, 2-3ab, 3cd-4 SecondEphesians 1:3-6, 11-12 GospelLuke 1:26-38
9Thu	Thursday of the Second Week of Advent	Weekday	Violet	Cycle II	Saint of the daySt. Juan Diego	FirstIsaiah 41:13-20 PsalmPsalm 145:1 and 9, 10-11, 12-13ab GospelMatthew 11:11-15
10Fri	Friday of the Second Week of Advent	Weekday	Violet	Cycle II	Saint of the daySt. John Roberts	FirstIsaiah 48:17-19 PsalmPsalm 1:1-2, 3, 4 and 6 GospelMatthew 11:16-19
11Sat	Saturday of the Second Week of Advent	Weekday	Violet	Cycle II	Saint of the daySt. Damasus I	FirstSirach 48:1-4, 9-11 PsalmPsalm 80:2ac and 3b, 15-16, 18-19 GospelMatthew 17:9a, 10-13
12Sun	Third Sunday of Advent 1	Sunday	Rose or violet	Year C	Saint of the daySt. Finnian of Clonard	FirstZephaniah 3:14-18a PsalmIsaiah 12:2-3, 4, 5-6 SecondPhilippians 4:4-7 GospelLuke 3:10-18
13Mon	St. Lucy,Virgin and Martyr	Memorial	Red	Cycle II	Saint of the daySt. Lucy	FirstNumbers 24:2-7, 15-17a PsalmPsalm 25:4-5ab, 6 and 7bc, 8-9 GospelMatthew 21:23-27
14Tue	St. John of the Cross,Priest and Doctor of the Church	Memorial	White	Cycle II	Saint of the daySt. John of the Cross	FirstZephaniah 3:1-2, 9-13 PsalmPsalm 34:2-3, 6-7, 17-18, 19 and 23 GospelMatthew 21:28-32
15Wed	Wednesday of the Third Week of Advent	Weekday	Violet	Cycle II	Saint of the daySt. Maria Crocifissa Di Rosa	FirstIsaiah 45:6c-8, 18, 21c-25 PsalmPsalm 85:9ab, 10, 11-12, 13-14 GospelLuke 7:18b-23
16Thu	Thursday of the Third Week of Advent	Weekday	Violet	Cycle II	Saint of the daySt. Adelaide	FirstIsaiah 54:1-10 PsalmPsalm 30:2 and 4, 5-6, 11-12a and 13b GospelLuke 7:24-30
17Fri	Friday of the Third Week of Advent	Weekday	Violet	Cycle II	Saint of the daySt. John of Matha	FirstGenesis 49:2, 8-10 PsalmPsalm 72:1-2, 3-4ab, 7-8, 17 GospelMatthew 1:1-17
18Sat	Saturday of the Third Week of Advent	Weekday	Violet	Cycle II	Saint of the daySt. Flannan	FirstJeremiah 23:5-8 PsalmPsalm 72:1-2, 12-13, 18-19 GospelMatthew 1:18-25
19Sun	Fourth Sunday of Advent	Sunday	Violet	Year C	Saint of the daySt. Anastasius I	FirstMicah 5:1-4a PsalmPsalm 80:2-3, 15-16, 18-19 SecondHebrews 10:5-10 GospelLuke 1:39-45
20Mon	Monday of the Fourth Week of Advent	Weekday	Violet	Cycle II	Saint of the daySt. Dominic of Silos	FirstIsaiah 7:10-14 PsalmPsalm 24:1-2, 3-4ab, 5-6 GospelLuke 1:26-38
21Tue	Tuesday of the Fourth Week of Advent	Weekday	Violet	Cycle II	Saint of the daySt. Peter Canisius	FirstSong of Songs 2:8-14 PsalmPsalm 33:2-3, 11-12, 20-21 GospelLuke 1:39-45
22Wed	Wednesday of the Fourth Week of Advent	Weekday	Violet	Cycle II	Saint of the daySts. Chaeremon and Ischyrion	First1 Samuel 1:24-28 Psalm1 Samuel 2:1, 4-5, 6-7, 8abcd GospelLuke 1:46-56
23Thu	Thursday of the Fourth Week of Advent	Weekday	Violet	Cycle II	Saint of the daySt. John of Kanty	FirstMalachi 3:1-4, 23-24 PsalmPsalm 25:4-5ab, 8-9, 10 and 14 GospelLuke 1:57-66
24Fri	Friday of the Fourth Week of Advent	Weekday	Violet	Cycle II	Saint of the daySts. Adam and Eve	First2 Samuel 7:1-5, 8b-12, 14a, 16 PsalmPsalm 89:2-3, 4-5, 27 and 29 GospelLuke 1:67-79
25Sat	The Nativity of the Lord (Christmas)	Solemnity	White	Year C	Saint of the daySt. Anastasia	FirstIsaiah 52:7-10 PsalmPsalm 98:1, 2-3, 3-4, 5-6 SecondHebrews 1:1-6 GospelJohn 1:1-18 Mass during the Day. Also: Vigil Mass; Mass during the Night; Mass at Dawn.
26Sun	The Holy Family of Jesus, Mary and Joseph	Feast	White	Year C	Saint of the daySt. Stephen	FirstSirach 3:2-6, 12-14 PsalmPsalm 128:1-2, 3, 4-5 SecondColossians 3:12-21 or 3:12-17 GospelLuke 2:41-52
27Mon	St. John,Apostle and Evangelist	Feast	White	Cycle II	Saint of the daySt. John the Apostle	First1 John 1:1-4 PsalmPsalm 97:1-2, 5-6, 11-12 GospelJohn 20:1a and 2-8
28Tue	Holy Innocents, Martyrs	Feast	Red	Cycle II	Saint of the dayThe Holy Innocents	First1 John 1:5—2:2 PsalmPsalm 124:2-3, 4-5, 7cd-8 GospelMatthew 2:13-18
29Wed	The Fifth Day in the Octave of Christmas	Weekday	White	Cycle II	Saint of the daySt. Thomas Becket	First1 John 2:3-11 PsalmPsalm 96:1-2a, 2b-3, 5b-6 GospelLuke 2:22-35
30Thu	The Sixth Day in the Octave of Christmas	Weekday	White	Cycle II	Saint of the daySt. Egwin	First1 John 2:12-17 PsalmPsalm 96:7-8a, 8b-9, 10 GospelLuke 2:36-40
31Fri	The Seventh Day in the Octave of Christmas	Weekday	White	Cycle II	Saint of the daySt. Sylvester I	First1 John 2:18-21 PsalmPsalm 96:1-2, 11-12, 13 GospelJohn 1:1-18

1Gaudete Sunday: rose vestments may be worn; violet is also correct.

Where this comes from

Computed by Bless from the US Lectionary cycle — confirm with your parish.

Psalm citations keep the Hebrew numbering the US Lectionary prints; the chapter links open the CPDV, which numbers the Psalms as the Vulgate does (Psalm 85 there is Psalm 84). The calendar is the US one; seasons, colors and ranks are as Bless ships them, with known data errors corrected.

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