01st

Lammas (Wiccan)
Lughnasadh (Celtic)
Blodeuwedd's Day (Welsh)
Festival of New Bread (Celtic)
Festival of Xiuhtecuhtli (Aztec)
Festival of Dryads Begins (Macedonian)
Green Corn Ceremony (Hopi/Creek)

02nd

Feast of Our Lady Of Angels (Costa Rican)
William II Rufus' Day (Norman)

03rd

New Moon
Festival of Dryads Ends (Macedonian)
Brauronia - Feast of Artemis (Attican/Athenian)

04th

Feast of the Blessed Virgin Mary (European)

05th

Vigil of St. Oswald
St. James' Day

06th

Tan Hill Festival (Celtic)
Festival of Thoth (Egyptian)

07th

Breaking of the Nile (Egyptian)

08th

Tij Day (Nepalese)

09th

Feast of the Milky Way (Chinese)

10th

St. Lawrence's Day

11th

Puck Fair (Irish)

12th

St. Claire's Day
Light of Isis (Egyptian)
Blessing of the Boats (Egyptian)

13th

Hecate's Day (Greek)

14th

Festival of Vesta (Roman)
Fieschi's Cake Day (Italian)

15th

Moon Festival for Chang-O (Chinese)
Asuncion (Mexican)
Festival of Diana of the Wild Wood (Greek/Roman)

16th

Festival of the Minstrels (European)
St. Roch's Day
Arrianrhod's Day (Celtic)
Day of the Great Mother (Pan-Pagan)

17th

Odin's Ordeal Begins (Odinist)
Amenatus (Egyptian)
Diana's Feast (Roman)

18th

Full Moon
St. Helena's Day
Blessing of the Grapes (Armenian)
Moon Sister Chang-O (Chinese)
Feast of Pacha Mama (Peruvian)
Feast of the Plow of Sita (Indian)
Nagyboldogasszony Napja (Hungarian)

19th

Full Moon
Egyptian New Year
Wedding of Adonis and Aphrodite (Greek)
Wedding of Isis and Osiris (Egyptian)
Wedding of Venus and Adonis (Roman)
Feast of Kuan Yin (Chinese)
O-Bon Festival (Japanese)
Naga-Panchami (Dravidian/Indian)
Asalha Puja (Buddhist)
Guru Purnima (Hinduist)

20th

Day of Inanna (Mesopotamia)

22nd

Aedesia's Day (Greek)

23rd

Day of Moira (Greek)
Day of Nemesea (Greek)
Vertumnalia (Roman)
Festival of Vulcan and the Nymphs (Roman)

24th

Mania (Roman)
St. Bartholomew
Mundus Cereris (European)

25th

Paryushana Parva (Hindu)
Odin's Ordeal Ends (Odinist)
Opisconsivia (Italian)

26th

Ilmatar's Feast Day (Finnish)
Women's Equality Day

27th

Worship of Mother Goddess Devaki (East Indian)
Nativity of Isis (Egyptian)

28th

Nativity of Nephthys (Egyptian)

29th

Hathor's Day (Egyptian)
Pardon of the Sea (British)
Urda's Day (Greek)

30th

St. Rose of Lima Day (Peruvian)
Aga-Ou (Haitian Voodoo)
Alexandrian New Year (Greco-Egyptian)
Charisteria (Roman)

31st

Anant Chaturdasi (Hindu)

Movable Days:

Choosuk Moon Festivals (Korean)
Onam (Hindu)
Janmashtami (Hindu)
Snake Dance Festival (Hopi)