A report released Wednesday by China's State Oceanic Administration warned that sea levels monitored last year reached the highest level since 1980.

The average sea level along the Chinese coast in 2016 was 38 mm higher than that of 2015 and 82 mm higher than the average level between 1993 and 2011, the report said.

Over the period from 1980 to 2016, sea level readings at China's coastal regions rose at an average rate of 3.2 mm per year, according to the report.

The report ascribed this situation to influences of climate change as well as El Nino and La Nina events.

Sun Shuxian, vice director of the administration warned that higher sea level may result in aggravated risks of storm tides, floods, coastal erosion, salt tides and seawater encroachment.

Another report released by the administration on Wednesday stated that the marine environment in waters under China's jurisdiction was "basically stable" in 2016.

However, it also noted some "outstanding problems" such as offshore pollution, an unhealthy marine ecosystem and environmental risks such as reoccurrence of red tides.