667
FZPQ50 PGUM 250619
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
419 PM ChST Tue Nov 25 2025

.DISCUSSION...There is a high risk of rip currents along east
facing reefs, and a moderate risk along north facing reefs. The
elevated east swell will continue to produce high risk of rip
currents through at least Wednesday night. It still remains possible
that this statement may need to be extended into Thursday, as the
trade swell may take longer to relax. Once the trade swell starts
relaxing surf and risk for rip currents will diminish.

$$

GUZ001-MPZ001>003-252200-
Guam-Rota-Tinian-Saipan-
419 PM ChST Tue Nov 25 2025

...HIGH RISK OF RIP CURRENTS THROUGH LATE WEDNESDAY NIGHT
ALONG EAST FACING REEFS...

36 hour Surf Zone Forecast for the Marianas from 600 PM Tuesday
through 600 AM Thursday

.TONIGHT...
Rip Current Risk.....High.
Surf Height
      North facing reefs............4 to 5 feet.
      East  facing reefs............7 to 9 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............1 to 2 feet.
Swell/Period
      Primary swell................East at 5 to 7 feet.
      Primary period...............9 seconds.
Water Temperature
      Ritidian buoy..........86 Degrees.
Winds...............East at 10 to 20 mph.

.WEDNESDAY...
Rip Current Risk.....High.
Surf Height
      North facing reefs............4 to 5 feet.
      East  facing reefs............7 to 9 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............1 to 2 feet.
Swell/Period
      Primary swell................East at 5 to 7 feet.
      Primary period...............9 seconds.
Max Heat Index.........Around 102.
Winds...............East at 10 to 20 mph.

.WEDNESDAY NIGHT...
Rip Current Risk.....High.
Surf Height
      North facing reefs............4 to 5 feet.
      East  facing reefs............7 to 9 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............1 to 2 feet.
Swell/Period
      Primary swell................East at 5 to 7 feet.
      Primary period...............9 seconds.
Winds...............East at 10 to 20 mph.


Tide information for the next 36 hours...

At Apra Harbor, Guam...
Low  tide  1.6 feet at  5:21 PM Tuesday
High tide  1.8 feet at  9:15 PM Tuesday
Low  tide -0.3 feet at  5:03 AM Wednesday
High tide  2.0 feet at 12:59 PM Wednesday
Low  tide  1.5 feet at  6:27 PM Wednesday
High tide  1.7 feet at 10:05 PM Wednesday
Low  tide -0.2 feet at  5:52 AM Thursday

At Rota Island...
Low  tide  1.5 feet at  5:15 PM Tuesday
High tide  1.7 feet at  9:12 PM Tuesday
Low  tide -0.3 feet at  4:57 AM Wednesday
High tide  1.9 feet at 12:56 PM Wednesday
Low  tide  1.4 feet at  6:21 PM Wednesday
High tide  1.6 feet at 10:02 PM Wednesday
Low  tide -0.2 feet at  5:46 AM Thursday

At Tinian Island...
Low  tide  1.4 feet at  5:05 PM Tuesday
High tide  1.5 feet at  8:12 PM Tuesday
Low  tide -0.2 feet at  4:56 AM Wednesday
High tide  1.6 feet at  1:28 PM Wednesday
Low  tide  1.3 feet at  6:14 PM Wednesday
High tide  1.4 feet at  9:05 PM Wednesday
Low  tide -0.2 feet at  5:40 AM Thursday

At Tanapag Harbor, Saipan...
Low  tide  1.7 feet at  5:37 PM Tuesday
High tide  1.9 feet at  8:48 PM Tuesday
Low  tide -0.1 feet at  5:10 AM Wednesday
High tide  2.1 feet at  1:19 PM Wednesday
Low  tide  1.7 feet at  6:58 PM Wednesday
High tide  1.7 feet at  9:33 PM Wednesday
Low  tide  0.0 feet at  6:00 AM Thursday

* 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.

$$