629
FZPQ50 PGUM 271828
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
428 AM ChST Fri Nov 28 2025

.DISCUSSION...There will be a moderate risk of rip currents along
north and east facing reefs of the Marianas for at least the next
several days, and it could become high for a shorter time. Scattered
showers and isolated thunderstorms will also add to the mix of marine
weather and hazards, including a moderate risk of lightning starting
Saturday.

$$

GUZ001-MPZ001>003-280930-
Guam-Rota-Tinian-Saipan-
428 AM ChST Fri Nov 28 2025

36 hour Surf Zone Forecast for the Marianas from 600 AM Friday
through 600 PM Saturday

.TODAY...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............4 to 6 feet.
      East  facing reefs............6 to 8 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............2 to 4 feet.
Swell/Period
      Primary swell................East at 5 to 6 feet.
      Primary period...............8 seconds.
Water Temperature
      Ritidian buoy..........85 Degrees.
Max Heat Index.........Around 99.
Winds...............East at 10 to 20 mph.

.TONIGHT...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............4 to 6 feet.
      East  facing reefs............6 to 8 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............2 to 4 feet.
Swell/Period
      Primary swell................East at 4 to 6 feet.
      Primary period...............8 seconds.
Winds...............East at 10 to 20 mph.

.SATURDAY...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............5 to 7 feet.
      East  facing reefs............5 to 7 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............2 to 4 feet.
Swell/Period
      Primary swell................Northeast at 4 to 6 feet.
      Primary period...............8 seconds.
Max Heat Index.........Around 101.
Winds...............East at 10 to 20 mph.


Tide information for the next 36 hours...

At Apra Harbor, Guam...
Low  tide  0.0 feet at  6:44 AM Friday
High tide  2.1 feet at  2:23 PM Friday
Low  tide  1.2 feet at  8:43 PM Friday
High tide  1.5 feet at 12:48 AM Saturday
Low  tide  0.2 feet at  7:41 AM Saturday
High tide  2.2 feet at  2:56 PM Saturday
Low  tide  0.9 feet at  9:34 PM Saturday

At Rota Island...
Low  tide  0.0 feet at  6:38 AM Friday
High tide  2.0 feet at  2:20 PM Friday
Low  tide  1.1 feet at  8:37 PM Friday
High tide  1.4 feet at 12:45 AM Saturday
Low  tide  0.2 feet at  7:35 AM Saturday
High tide  2.1 feet at  2:53 PM Saturday
Low  tide  0.8 feet at  9:28 PM Saturday

At Tinian Island...
Low  tide -0.1 feet at  6:25 AM Friday
High tide  1.6 feet at  2:11 PM Friday
Low  tide  1.0 feet at  8:21 PM Friday
High tide  1.1 feet at 12:00 AM Saturday
Low  tide  0.1 feet at  7:11 AM Saturday
High tide  1.6 feet at  2:29 PM Saturday
Low  tide  0.7 feet at  9:08 PM Saturday

At Tanapag Harbor, Saipan...
Low  tide  0.2 feet at  6:54 AM Friday
High tide  2.2 feet at  2:33 PM Friday
Low  tide  1.3 feet at  9:06 PM Friday
High tide  1.5 feet at 12:50 AM Saturday
Low  tide  0.4 feet at  7:50 AM Saturday
High tide  2.2 feet at  3:06 PM Saturday
Low  tide  1.0 feet at  9:48 PM Saturday

* Low Risk of rip currents - Strong currents can still occur near
jetties and reef channels. Always have a flotation device with you
in the water.

Moderate Risk of rip currents - Wave conditions support stronger or
more frequent rip currents. Always have a flotation device with you
in the water.

High Risk of rip currents - Large waves will produce strong rip
currents, especially along narrow reefs and beaches. Rip currents
will be life threatening. If caught in a rip current, swim parallel
to the beach rather than against the current.

$$