077
FZPQ50 PGUM 050706
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
506 PM ChST Sun Oct 5 2025

.DISCUSSION...There is a low risk of rip currents along all reefs
through Monday. Then as the east swell slowly builds Monday night and
Tuesday, the risk of rip currents is expected to become moderate along
east facing reefs. The east swell should start to subside Wednesday,
but the moderate risk of rip currents may linger through at least
Wednesday night. A moderate risk of lightning will continue
through Wednesday.

$$

GUZ001-MPZ001>003-052215-
Guam-Rota-Tinian-Saipan-
506 PM ChST Sun Oct 5 2025

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

.TONIGHT...
Rip Current Risk.....Low *.
Surf Height
      North facing reefs............1 to 3 feet.
      East  facing reefs............2 to 4 feet.
      South facing reefs............1 to 2 feet.
      West  facing reefs............Around 1 foot.
Swell/Period
      Primary swell................East at 2 to 3 feet.
      Primary period...............8 seconds.
Water Temperature
      Ritidian buoy..........87 Degrees.
Winds...............Light and variable.

.MONDAY...
Rip Current Risk.....Low *.
Surf Height
      North facing reefs............1 to 3 feet.
      East  facing reefs............2 to 4 feet.
      South facing reefs............1 to 2 feet.
      West  facing reefs............Around 1 foot.
Swell/Period
      Primary swell................East at 2 to 3 feet.
      Primary period...............8 seconds.
Max Heat Index.........Around 100.
Winds...............Light and variable, becoming southeast
                    at 5 to 10 mph in the afternoon.

.MONDAY NIGHT...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............2 to 4 feet.
      East  facing reefs............3 to 5 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............1 to 2 feet.
Swell/Period
      Primary swell................East at 2 to 4 feet.
      Primary period...............8 seconds.
Winds...............East at 5 to 15 mph.


Tide information for the next 36 hours...

At Apra Harbor, Guam...
High tide  2.4 feet at  6:34 PM Sunday
Low  tide  0.7 feet at 12:37 AM Monday
High tide  2.4 feet at  6:27 AM Monday
Low  tide  0.3 feet at 12:44 PM Monday
High tide  2.5 feet at  6:58 PM Monday
Low  tide  0.4 feet at  1:15 AM Tuesday
High tide  2.5 feet at  7:23 AM Tuesday

At Rota Island...
High tide  2.3 feet at  6:31 PM Sunday
Low  tide  0.7 feet at 12:31 AM Monday
High tide  2.2 feet at  6:24 AM Monday
Low  tide  0.3 feet at 12:38 PM Monday
High tide  2.4 feet at  6:55 PM Monday
Low  tide  0.4 feet at  1:09 AM Tuesday
High tide  2.3 feet at  7:20 AM Tuesday

At Tinian Island...
High tide  1.5 feet at  6:00 PM Sunday
Low  tide  0.6 feet at 11:57 PM Sunday
High tide  1.5 feet at  5:41 AM Monday
Low  tide  0.2 feet at 12:03 PM Monday
High tide  1.6 feet at  6:20 PM Monday
Low  tide  0.3 feet at 12:42 AM Tuesday
High tide  1.5 feet at  6:48 AM Tuesday

At Tanapag Harbor, Saipan...
High tide  2.1 feet at  6:45 PM Sunday
Low  tide  0.8 feet at 12:33 AM Monday
High tide  2.1 feet at  6:35 AM Monday
Low  tide  0.3 feet at 12:48 PM Monday
High tide  2.2 feet at  7:09 PM Monday
Low  tide  0.4 feet at  1:16 AM Tuesday
High tide  2.2 feet at  7:35 AM Tuesday

* 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.

$$