Maximum Tides Threaten Riau Islands Coast; BMKG Urges Fishermen to Suspend Sailing if Weather Deteriorates

Potential maximum tides and extreme weather conditions are expected to persist in the Riau Islands (Kepri) region until at least 8 March 2026. Coastal residents, fishermen, and port facility users have been urged to increase vigilance against possible impacts.

This warning was issued by the Meteorology, Climatology and Geophysics Agency (BMKG) following an anticipated rise in sea levels that could trigger tidal flooding in several coastal areas.

Forecasters from BMKG’s Hang Nadim Airport Meteorological Station explained that this maximum tide phenomenon is influenced by the new moon phase, which astronomically can increase sea level height.

“Besides maximum tides, we are also monitoring potential increases in wind speed and wave height in Riau Islands waters. This condition requires attention from fishermen and maritime transport operators,” a spokesperson said on Monday (2 March).

The agency added that moderate to heavy rainfall is also possible, particularly during daytime to evening hours. Such weather could be accompanied by strong winds and lightning that may disrupt activities at sea and in coastal areas.

BMKG has reminded fishermen to always monitor the latest weather forecast information before going out to sea and to refrain from conducting activities if conditions are deemed risky. Port operators and maritime transport users have also been asked to anticipate possible operational disruptions due to weather factors.

In practice, fishermen are beginning to experience weather changes. One fisherman from Batam’s coast, Amir (45), said he chose to be more cautious since the maximum tide warning was issued.

“We have received information about waves and strong winds. If the weather is not good, we usually choose not to sail. The risk is too great if we force it,” he said.

Another fisherman, Afrijal (38), also hopes that weather forecast information continues to be updated so they can determine sailing times more safely.

“Information from BMKG is very helpful to us. If there is still potential for extreme weather until 8 March, we will be more vigilant,” he said.

Residents living in flood-prone areas have been urged to secure valuable belongings and pay attention to surrounding environmental conditions. BMKG has assured that weather and sea condition monitoring continues to be conducted intensively, with early warnings to be issued promptly if there is potential for dangerous extreme weather.