413
FZPQ50 PGUM 150600
SRFGUM

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

.DISCUSSION...There will be a moderate risk of rip currents along
north and east facing reefs through at least the middle of next week.
The east swell is expected to begin to build around midweek and
could result in the rip current risk becoming high along east facing
Tuesday or Wednesday.

$$

GUZ001-MPZ001>003-152100-
Guam-Rota-Tinian-Saipan-
400 PM ChST Sat Nov 15 2025

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

.TONIGHT...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............3 to 5 feet.
      East  facing reefs............6 to 8 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............1 to 3 feet.
Swell/Period
      Primary swell................East at 4 to 6 feet.
      Primary period...............8 seconds.
Water Temperature
      Ritidian buoy..........86 Degrees.
Winds...............East at 15 to 20 mph.

.SUNDAY...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............3 to 5 feet.
      East  facing reefs............6 to 8 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............1 to 3 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.

.SUNDAY NIGHT...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............3 to 5 feet.
      East  facing reefs............6 to 8 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............1 to 3 feet.
Swell/Period
      Primary swell................East at 4 to 6 feet.
      Primary period...............8 seconds.
Winds...............East at 10 to 20 mph.


Tide information for the next 36 hours...

At Apra Harbor, Guam...
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...
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...
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...
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.

$$