834
FZPQ50 PGUM 140713
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
513 PM ChST Mon Sep 14 2026

.DISCUSSION...
There is a moderate risk of rip currents along north- and east-facing
reefs through at least Tuesday night. There is a moderate risk of
lightning through Tuesday night.

$$

GUZ001-MPZ001>003-142215-
Guam-Rota-Tinian-Saipan-
513 PM ChST Mon Sep 14 2026

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

.TONIGHT...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............3 to 5 feet.
      East  facing reefs............4 to 6 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............1 to 3 feet.
Swell/Period
      Primary swell................Northeast at 4 to 5 feet.
      Primary period...............9 seconds.
Water Temperature
      Pago buoy..........86 Degrees.
Winds...............Northeast to north at 5 to 15 mph.

.TUESDAY...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............3 to 5 feet.
      East  facing reefs............5 to 6 feet.
      South facing reefs............2 to 3 feet.
      West  facing reefs............1 to 3 feet.
Swell/Period
      Primary swell................Northeast at 4 to 5 feet.
      Primary period...............9 seconds.
      Secondary swell..............Southeast at around 3 feet.
      Secondary period.............8 seconds.
Max Heat Index.........Around 103.
Winds...............Northwest to northeast at 5 to 10 mph.

.TUESDAY NIGHT...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............3 to 5 feet.
      East  facing reefs............4 to 6 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............1 to 3 feet.
Swell/Period
      Primary swell................Northeast at 4 to 5 feet.
      Primary period...............9 seconds.
      Secondary swell..............South at around 3 feet.
      Secondary period.............8 seconds.
Winds...............North to northwest at 5 to 10 mph.


Tide information for the next 36 hours...

At Apra Harbor, Guam...
High tide  2.4 feet at  9:17 PM Monday
Low  tide  0.3 feet at  4:08 AM Tuesday
High tide  2.2 feet at 10:36 AM Tuesday
Low  tide  1.2 feet at  4:19 PM Tuesday
High tide  2.2 feet at  9:40 PM Tuesday
Low  tide  0.2 feet at  4:47 AM Wednesday

At Rota Island...
High tide  2.2 feet at  9:14 PM Monday
Low  tide  0.3 feet at  4:02 AM Tuesday
High tide  2.1 feet at 10:33 AM Tuesday
Low  tide  1.2 feet at  4:13 PM Tuesday
High tide  2.1 feet at  9:37 PM Tuesday
Low  tide  0.2 feet at  4:41 AM Wednesday

At Tinian Island...
High tide  1.7 feet at  9:15 PM Monday
Low  tide  0.1 feet at  3:45 AM Tuesday
High tide  1.6 feet at 10:34 AM Tuesday
Low  tide  0.4 feet at  3:56 PM Tuesday
High tide  1.7 feet at  9:38 PM Tuesday
Low  tide  0.1 feet at  4:24 AM Wednesday

At Tanapag Harbor, Saipan...
High tide  2.0 feet at  9:36 PM Monday
Low  tide  0.2 feet at  4:19 AM Tuesday
High tide  1.9 feet at 11:03 AM Tuesday
Low  tide  1.1 feet at  4:26 PM Tuesday
High tide  2.0 feet at  9:57 PM Tuesday
Low  tide  0.2 feet at  5:01 AM Wednesday

* 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.

$$