966
FZPQ50 PGUM 011852
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
452 AM ChST Tue Sep 2 2025

.DISCUSSION...There will be a moderate risk of rip currents along
east facing reefs through at least Wednesday. By the weekend the risk
of rip currents will likely be low along all reefs. There will also
be a moderate risk of lightning through the weekend.

$$

GUZ001-MPZ001>003-021000-
Guam-Rota-Tinian-Saipan-
452 AM ChST Tue Sep 2 2025

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

.TODAY...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............2 to 4 feet.
      East  facing reefs............4 to 6 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............Around 1 foot.
Swell/Period
      Primary swell................East at 2 to 4 feet.
      Primary period...............8 seconds.
Water Temperature
      Ritidian buoy..........86 Degrees.
Max Heat Index.........Around 99.
Winds...............East at 10 to 20 mph.

.TONIGHT...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............2 to 4 feet.
      East  facing reefs............4 to 6 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............Around 1 foot.
Swell/Period
      Primary swell................East at 2 to 4 feet.
      Primary period...............8 seconds.
Winds...............Southeast at 10 to 15 mph.

.WEDNESDAY...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............2 to 4 feet.
      East  facing reefs............4 to 6 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............Around 1 foot.
Swell/Period
      Primary swell................East at 2 to 4 feet.
      Primary period...............8 seconds.
Max Heat Index.........Around 99.
Winds...............Southeast at around 10 mph.


Tide information for the next 36 hours...

At Apra Harbor, Guam...
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
Low  tide  0.2 feet at 10:11 AM Wednesday
High tide  2.2 feet at  6:07 PM Wednesday
Low  tide  1.7 feet at 11:06 PM Wednesday

At Rota Island...
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
Low  tide  0.2 feet at 10:05 AM Wednesday
High tide  2.0 feet at  6:04 PM Wednesday
Low  tide  1.6 feet at 11:00 PM Wednesday

At Tinian Island...
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
Low  tide -0.1 feet at  9:54 AM Wednesday
High tide  1.4 feet at  6:08 PM Wednesday
Low  tide  1.3 feet at  9:54 PM Wednesday

At Tanapag Harbor, Saipan...
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  tide  0.1 feet at 10:21 AM Wednesday
High tide  1.9 feet at  6:30 PM Wednesday
Low  tide  1.6 feet at 10:40 PM 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.

$$