"Insolação Total (horas)". Normais Climatológicas do Brasil 1991-2020 (in Portuguese). Instituto Nacional de Meteorologia. Archived from the original on 24 March 2022. Retrieved 25 May 2024.
Alegre, Prefeitura Municipal de Porto. "Turismo". www2.portoalegre.rs.gov.br (in Brazilian Portuguese). Archived from the original on 2014-08-28. Retrieved 2021-05-15.
Alegre, Prefeitura Municipal de Porto. "Turismo". www2.portoalegre.rs.gov.br (in Brazilian Portuguese). Archived from the original on 2014-08-28. Retrieved 2021-05-15.
"Insolação Total (horas)". Normais Climatológicas do Brasil 1991-2020 (in Portuguese). Instituto Nacional de Meteorologia. Archived from the original on 24 March 2022. Retrieved 25 May 2024.