Intense and long-duration of marine heatwave (MHW) events were recorded three times near the coral reef area in Nusa Dua, Bali, Indonesia from 2015 to 2022. Historical mapping of coral reefs based on satellite imagery shows that during the MHW in west monsoon season, 39% of coral reef coverage was lost as sea surface temperature exceeded the coral thermal threshold of 29°C. In contrast, the east monsoon serves as the recovery period since the temperature is lower (24-25°C) due to upwelling occurrence.
