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INCOIS Coastal Swell Surge & Wave Telemetry

Real-time ocean state forecasting, Kallakkadal swell surge advisories, and wave height telemetry across Kerala’s 590 km coastal zone powered by the Indian National Centre for Ocean Information Services (INCOIS).

Last Synchronized09 Aug 2026, 08:30 am IST Stream Active

INCOIS Coastal Emergency Advisory:High waves (2.8m - 3.4m) expected along Vizhinjam to Kasaragod coast. Fishermen advised not to venture into deep sea.

Peak Wave Height

3.4 m

Offshore breaking wave amplitude along southern coast

Swell Period

16.2 s

Long-period Southern Ocean swell wave interval

Kallakkadal Surge Status

Orange Alert (High Swell)

High-tide overtopping watch active for low-lying beaches

Fishermen Sea Warning

Strict Warning Active

Squally winds 45-55 kmph along Kerala-Lakshadweep coast

Coastal Zone Wave Height & Sea State Telemetry (9 Coastal Districts)

590 km Shoreline Monitored

Thiruvananthapuram (Vizhinjam & Poonthura)

High Alert

Wave Height:3.4 m

Sea State:Rough

Swell waves up to 3.4m breaking near coast. Shoreline erosion monitored.

Kollam (Neendakara & Azheekal)

Moderate Alert

Wave Height:3.1 m

Sea State:Rough

High wave warning active. Fishing vessels advised to remain harbored.

Alappuzha (Thottappally & Ambalapuzha)

High Alert

Wave Height:3.2 m

Sea State:Rough

Seawall overtopping risk during high tide hours (14:30 & 02:15 IST).

Ernakulam (Chellanam & Fort Kochi)

High Alert

Wave Height:2.9 m

Sea State:Moderate-Rough

Chellanam coastal tetrapod barrier monitoring active. High wave runup reported.

Thrissur (Kodungallur & Munambam)

Moderate Alert

Wave Height:2.8 m

Sea State:Moderate

Estuary mouth turbid flow with high wave action.

Malappuram (Ponnani & Tanur)

Moderate Alert

Wave Height:3 m

Sea State:Rough

Ponnani harbour mouth swell surge caution.

Kozhikode (Beypore & Vadakara)

High Alert

Wave Height:3.3 m

Sea State:Rough

Squally winds gusting to 55 kmph along Beypore port waters.

Kannur (Azheekkode & Thalassery)

Moderate Alert

Wave Height:2.7 m

Sea State:Moderate

Coastal wave height steady at 2.7m.

Kasaragod (Manjeshwaram & Nileshwaram)

Moderate Alert

Wave Height:2.9 m

Sea State:Moderate

Estuary high tide watch in effect.

Data Source: INCOIS (Indian National Centre for Ocean Information Services, Ministry of Earth Sciences) & IMD Coastal Weather Station Network.Visit Official INCOIS Portal ↗