Typically, over periods of months, Ruapehu's crater lake (Te Wai ā-moe) experiences heating and cooling cycles. In late December 2020 the lake heated to around 43°C marking the high point of the previous cycle. Early 2021 the lake cooled through to February 2021, before starting to heat again in early March. A maximum of 41°C was reached on 12 April 2021. The lake then started to cool down to 20°C on 2 July. The lake temperature started to rise again last week and is currently 23°C. Read allThe activity of the volcano continued at fluctuacting levels as in December last year the elevated volcanic activity was recorded, but this unrest decreased on 11 January 2021. Read allThe activity of the volcano continues at fluctuating levels during the past few months and currently continues at low levels. Read all