815
FZPQ50 PGUM 080552
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
352 PM ChST Mon Sep 8 2025

.DISCUSSION...Surf along all reefs are below 5 feet. The risk of
rip currents is low on all reefs. Surf may rise around the middle
of the week and allowing the risk of rip currents to increase
to moderate along east facing reefs. A moderate risk for
lightning will persist for the next few days, especially near
Guam`s western coastline.

$$

GUZ001-MPZ001>003-082100-
Guam-Rota-Tinian-Saipan-
352 PM ChST Mon Sep 8 2025

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

.TONIGHT...
Rip Current Risk.....Low *.
Surf Height
      North facing reefs............2 to 4 feet.
      East  facing reefs............2 to 4 feet.
      South facing reefs............Around 1 foot.
      West  facing reefs............Around 1 foot.
Swell/Period
      Primary swell................East at 2 to 3 feet.
      Primary period...............9 seconds.
Water Temperature
      Ipan buoy..........86 Degrees.
Winds...............Northeast at around 10 mph.

.TUESDAY...
Rip Current Risk.....Low *.
Surf Height
      North facing reefs............2 to 4 feet.
      East  facing reefs............2 to 4 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............Around 1 foot.
Swell/Period
      Primary swell................Northeast at 2 to 4 feet.
      Primary period...............9 seconds.
Max Heat Index.........Around 101.
Winds...............East at 10 to 15 mph.

.TUESDAY NIGHT...
Rip Current Risk.....Low *.
Surf Height
      North facing reefs............2 to 4 feet.
      East  facing reefs............2 to 4 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............Around 1 foot.
      Primary swell................Northeast at 2 to 4 feet.
      Primary period...............9 seconds.
Winds...............East at 10 to 15 mph.


Tide information for the next 36 hours...

At Apra Harbor, Guam...
High tide  2.6 feet at  8:20 PM Monday
Low  tide  0.8 feet at  2:22 AM Tuesday
High tide  2.6 feet at  8:10 AM Tuesday
Low  tide  0.4 feet at  2:37 PM Tuesday
High tide  2.6 feet at  8:46 PM Tuesday
Low  tide  0.5 feet at  3:04 AM Wednesday

At Rota Island...
High tide  2.4 feet at  8:17 PM Monday
Low  tide  0.8 feet at  2:16 AM Tuesday
High tide  2.5 feet at  8:07 AM Tuesday
Low  tide  0.3 feet at  2:31 PM Tuesday
High tide  2.4 feet at  8:43 PM Tuesday
Low  tide  0.5 feet at  2:58 AM Wednesday

At Tinian Island...
High tide  1.6 feet at  7:52 PM Monday
Low  tide  0.6 feet at  1:50 AM Tuesday
High tide  1.6 feet at  7:31 AM Tuesday
Low  tide  0.3 feet at  2:03 PM Tuesday
High tide  1.6 feet at  8:13 PM Tuesday
Low  tide  0.4 feet at  2:39 AM Wednesday

At Tanapag Harbor, Saipan...
High tide  2.1 feet at  8:40 PM Monday
Low  tide  0.8 feet at  2:30 AM Tuesday
High tide  2.2 feet at  8:22 AM Tuesday
Low  tide  0.2 feet at  2:49 PM Tuesday
High tide  2.1 feet at  9:03 PM Tuesday
Low  tide  0.5 feet at  3:12 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.

$$