Born in 1887 in Nötsch in the Gailtal, attended the middle school in Trieste, then the Academy of Fine Arts in Vienna.
In 1909, on the initiative of Schiele, he founded the “Neukunstgruppe” with Böhler, Peschka, Faistauer and others in protest against the then prevailing academicism. First exhibitions in Vienna in 1909 and 1911. On the recommendation of Gustav Klimt and Carl Moll Wiegele and Kolig 1912 received a scholarship for a stay in Paris.
Interned in North Africa during the First World War, he comes as an exchange prisoner to Switzerland, where he lives until 1925. Intensive contacts with well-known artists and collectors. 1925 return to Nötsch, participation in several joint exhibitions in Vienna, Klagenfurt and Salzburg.
Several art trips to Italy, 1932 accompanied by Otto Demus to Venice, Padua and Florence. In a bombing raid on Nötsch in 1944, Wiegele dies under the rubble of his house.
Together with Kolig, he is the center of the “Nötscher Kreis” and, like him, is one of the most important representatives of classical modernism in Austria.