Wat Dhammarangsee offers a wide range of religious, cultural and community support activities. The religious activities are namely, daily chanting in Pali and meditation in the morning and evening, both opened to the public free of charge. On the weekend the abbot offers a Dhamma talk. There are two one-day retreats every year in April around the time of the Thai New Year, and before the end of the Rain Retreat in October. The retreats are usually attended by around 70 people. A short duration of the retreats is largely due to insufficient accommodation and other amenities, which makes it impossible for the centre to hold overnight retreats. The centre also has a library collection of books on Buddhism, mainly in Thai and a few in English. The library is open to the public. There are a number of major community festivals at the centre each month. These festivals include Maga Puja Day, Visak Puja Day, Asalaha Puja Day, the Rain Retreat Day, Ancestor Day (sart) and the end of Rain Retreat celebration.

Since the year 2000, Wat Dhammarangsee has been offering the Sanam Luang Dhamma study course. (Buddha’s teaching) The course, which was instigated by Ven. Phra Tanee, is taught in both English and Thai every Sunday afternoon at the centre and may also be undertaken by correspondence. The course runs for three years and the participants are required to sit for an examination at the end of each year. The centre has also used some of the materials from the program as the basis preparation for a course on Buddhism at VCE level, which will be offered to a High School student who is doing Asian Studies as an elective subject. According to Ken Chan, a community representative:

“This course is a real contribution of our temple. In Thailand this course is only available to the monks, and all monks have to do this course. Here we are very lucky to be able to do what is really a part of the monks' education. When some students had to do the exam in English we had to write to Thailand to ask permission if the exam can be done in English and they granted the permission.”

The course is also a significant community activity and at the end of the three years as many as 32 monks from Canberra, Sydney and Adelaide, as well as the home temple in Thailand, are invited to join in the end of the course celebration.

The main focus of Wat Dhammarangsee is the practice of meditation and an in depth study of the Buddha's teachings, following the traditional Theravada order.