206
FZPQ50 PGUM 010600
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
400 PM ChST Mon Sep 1 2025

.DISCUSSION...There is a moderate risk of rip currents along
south facing reefs. Surf is expected to fall by about a foot
by Tuesday. Surf is expected to remain low through the rest
of the week. There is a moderate risk if lightning through
Wednesday.

$$

GUZ001-MPZ001>003-011900-
Guam-Rota-Tinian-Saipan-
400 PM ChST Mon Sep 1 2025

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............Around 1 foot.
      East  facing reefs............2 to 4 feet.
      South facing reefs............3 to 5 feet.
      West  facing reefs............1 to 3 feet.
Swell/Period
      Primary swell................Southeast at around 3 feet.
      Primary period...............8 seconds.
Water Temperature
      Ritidian buoy.......... 86 Degrees.
Winds...............Northeast at 10 to 15 mph.

.TUESDAY...
Rip Current Risk.....Low *.
Surf Height
      North facing reefs............Around 1 foot.
      East  facing reefs............2 to 4 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............Around 1 foot.
Swell/Period
      Primary swell................East at 1 to 3 feet.
      Primary period...............8 seconds.
Max Heat Index.........Around 99.
Winds...............East at 10 to 20 mph.

.TUESDAY NIGHT...
Rip Current Risk.....Low *.
Surf Height
      North facing reefs............1 to 3 feet.
      East  facing reefs............2 to 4 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............1 to 2 feet.
Swell/Period
      Primary swell................East at 2 to 3 feet.
      Primary period...............8 seconds.
Winds...............Southeast at 10 to 15 mph.


Tide information for the next 36 hours...

At Apra Harbor, Guam...
High tide  2.0 feet at  4:24 PM Monday
Low  tide  1.8 feet at  8:43 PM Monday
High tide  2.0 feet at 12:59 AM Tuesday
Low  tide  0.3 feet at  9:08 AM Tuesday
High tide  2.1 feet at  5:26 PM Tuesday
Low  tide  1.8 feet at 10:09 PM Tuesday
High tide  2.0 feet at  2:17 AM Wednesday

At Rota Island...
High tide  1.9 feet at  4:21 PM Monday
Low  tide  1.7 feet at  8:37 PM Monday
High tide  1.9 feet at 12:56 AM Tuesday
Low  tide  0.3 feet at  9:02 AM Tuesday
High tide  1.9 feet at  5:23 PM Tuesday
Low  tide  1.6 feet at 10:03 PM Tuesday
High tide  1.9 feet at  2:14 AM Wednesday

At Tinian Island...
High tide  1.4 feet at  4:46 PM Monday
Low  tide  1.3 feet at  7:34 PM Monday
High tide  1.5 feet at 12:05 AM Tuesday
Low  tide  0.0 feet at  9:00 AM Tuesday
High tide  1.4 feet at  5:34 PM Tuesday
Low  tide  1.3 feet at  8:55 PM Tuesday
High tide  1.5 feet at  1:09 AM Wednesday

At Tanapag Harbor, Saipan...
High tide  1.7 feet at  5:09 PM Monday
Low  tide  1.6 feet at  7:50 PM Monday
High tide  1.9 feet at 12:43 AM Tuesday
Low  tide  0.2 feet at  9:25 AM Tuesday
High tide  1.8 feet at  5:56 PM Tuesday
Low  tide  1.7 feet at  9:35 PM Tuesday
High tide  1.9 feet at  1:40 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.

$$