August includes World Humanitarian Day, as well as several events for people of different faiths.

DateNational Day
01-Aug Lammas - Christian
01-Aug Fast in honour of Holy Mother of Lord Jesus - Orthodox Christian
01-Aug Lughnasadh - Imbok - Wicca/Pagan Northern and Southern Hemispheres
02-Aug Summer Bank Holiday - Scotland 
06-Aug Transfiguration Sunday - Christian
09-Aug International Day of the World's Indigenous Peoples
10-Aug Al-Hirja Muharram - Islamic New Year
12-Aug International Youth Day
15-Aug Assumption of the Blessed Virgin Mary - Catholic Christian
15-Aug Dormition of the Theotokos - Greek Orthodox
19-Aug Ashura - Muslim
19-Aug World Humanitarian Day
22-Aug Raksha Bandhan - Hindu
22-Aug Queenship of Mary - Catholic Christian
29-Aug Beheading of Saint John the Baptist - Christian
30-Aug Krishna Janmashtami - Hindu
30-Aug Bank Holiday - England, Wales and Northern Ireland