153
FZPQ50 PGUM 141911
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
511 AM ChST Sat Nov 15 2025

.DISCUSSION...There will be a moderate risk of rip currents along
north and east facing reefs of the Marianas through at least the
middle of next week.

$$

GUZ001-MPZ001>003-151015-
Guam-Rota-Tinian-Saipan-
511 AM ChST Sat Nov 15 2025

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

.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 4 to 5 feet.
      Primary period...............9 seconds.
Water Temperature
      Ritidian buoy..........86 Degrees.
Max Heat Index.........Around 101.
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 5 feet.
      Primary period...............9 seconds.
Winds...............East at 10 to 20 mph.

.SUNDAY...
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.
Max Heat Index.........Around 101.
Winds...............East at 15 to 20 mph.


Tide information for the next 36 hours...

At Apra Harbor, Guam...
Low  tide  0.5 feet at 10:02 AM Saturday
High tide  2.2 feet at  4:44 PM Saturday
Low  tide  0.5 feet at 11:24 PM Saturday
High tide  1.7 feet at  5:23 AM Sunday
Low  tide  0.8 feet at 10:54 AM Sunday
High tide  2.2 feet at  5:09 PM Sunday
Low  tide  0.2 feet at 11:59 PM Sunday

At Rota Island...
Low  tide  0.5 feet at  9:56 AM Saturday
High tide  2.0 feet at  4:41 PM Saturday
Low  tide  0.5 feet at 11:18 PM Saturday
High tide  1.6 feet at  5:20 AM Sunday
Low  tide  0.7 feet at 10:48 AM Sunday
High tide  2.0 feet at  5:06 PM Sunday
Low  tide  0.2 feet at 11:53 PM Sunday

At Tinian Island...
Low  tide  0.3 feet at  9:15 AM Saturday
High tide  1.6 feet at  3:59 PM Saturday
Low  tide  0.4 feet at 10:47 PM Saturday
High tide  1.1 feet at  4:28 AM Sunday
Low  tide  0.6 feet at  9:58 AM Sunday
High tide  1.6 feet at  4:19 PM Sunday
Low  tide  0.2 feet at 11:26 PM Sunday

At Tanapag Harbor, Saipan...
Low  tide  0.7 feet at 10:10 AM Saturday
High tide  2.1 feet at  4:51 PM Saturday
Low  tide  0.6 feet at 11:26 PM Saturday
High tide  1.7 feet at  5:39 AM Sunday
Low  tide  0.9 feet at 10:55 AM Sunday
High tide  2.1 feet at  5:15 PM Sunday
Low  tide  0.3 feet at 11:58 PM Sunday

* 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.

$$