01st

New Moon
Labor Day (USA)
Day of Radha (Indian)
Feast of Gauri (Indian)
Thargelia (Mediterranean)
St. Giles

02nd

St. Sulien

03rd

La Kon (Native American)
Cromwell's Day (English)

04th

St. Bartholomew's Day 

05th

Day of Nanda Devi (East Indian)

07th

Festival of Durga (Bengalese)
Feast of Yemoja (Santeria)

08th

Pinnhut Festival (Native American)
Navidad de la Virgen (Mexican)
Birthday of the Harvest Goddess (Russian)
Water Festival (Tibetan)
Almabtrieb (German/Austrian)

09th

Kiku No Sekku (Japanese)
Horned Dance at Abbots Bromley (Pagan)
Asclepigenia (Greek)

10th

T'wan Yuan Chieh (Chinese)

11th

Day of Queens (Egyptian)

12th

Astraea's Day (Greek)

13th

Lectisternia (Roman)
Banquet of Venus (Roman)

14th

Feast of Lights (Egyptian)
Slaughter of the Pig at Santa Maria delle Grazie (Italian)

15th

Acorn Festival (Native American)
Feast of Our Lady of Sorrows

16th

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

17th

Hildegard von Bingen's Day (German)

19th

Feast of Thoth (Egyptian)

20th

Quetzalcoatl's Birthday (Aztec)
Alexander the Great's Birthday (Greek)

21st

Raud the Strong's Martyrdom (Norwegian)
Mabon Eve (Wiccan)
Rites of Eleusis (Greek)
Feast of Divine Life
St. Matthew's Day

22nd

Fall Equinox
Mabon (Wiccan)
Greater Eleusian Mysteries Begin (Greek)
Death of Tiamat (Sumerian)
Alban Elfed (Druidic)
Winter Finding (Norse)
Carpo's Festival (Pagan)
Carman's Day (Pagan)

23rd

Day of Mielikki (Finnish)
Festival of Nemesis (Greek)
Worldwide Day of Prayer and Meditation to Heal Mother Earth

24th

Feast of Obatala (Santeria)

26th

Feast of Santa Justinia (Mexican)

27th

Day of Willows (Mesopotamia)
Choosuk (South Korean/Taiwanese)
Athenae's Birthday (Greek)

28th

Michaelmas Eve
Confucius' Birthday (Chinese)
The Holy Night (Greek)

29th

Michaelmas
Festival of Nemesis (Greek)
Feast of Gwynn ap Nudd (Celtic)
Heimdall's Day (Norse)

30th

Medetrinalia (Roman)
Festival of Themis (Delphian)
Greater Eleusian Mysteries End (Greek)

Movable Days:

Chinese Harvest Festival
Rosh Hashanah (Jewish)
Yom Kippur (Jewish)