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FZPQ50 PGUM 040600
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
400 PM ChST Sat Oct 4 2025

.DISCUSSION...There is a low risk of rip currents along all reefs
through at least Wednesday. There also remains a moderate risk of
lightning through at least Wednesday.

$$

GUZ001-MPZ001>003-041930-
Guam-Rota-Tinian-Saipan-
400 PM ChST Sat Oct 4 2025

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

.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................Northeast at 2 to 3 feet.
      Primary period...............8 seconds.
Water Temperature
      Ritidian buoy..........86 Degrees.
Winds...............Light and variable.

.SUNDAY...
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................Northeast at 2 to 3 feet.
      Primary period...............8 seconds.
Max Heat Index.........Around 99.
Winds...............Light and variable.

.SUNDAY NIGHT...
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...............8 seconds.
Winds...............Southeast at 10 mph in the evening becoming
                    light.


Tide information for the next 36 hours...

At Apra Harbor, Guam...
Low  tide  1.0 feet at 12:00 AM Sunday
High tide  2.2 feet at  5:30 AM Sunday
Low  tide  0.2 feet at 12:00 PM Sunday
High tide  2.4 feet at  6:34 PM Sunday
Low  tide  0.7 feet at 12:37 AM Monday
High tide  2.4 feet at  6:27 AM Monday

At Rota Island...
Low  tide  1.0 feet at 11:54 PM Saturday
High tide  2.1 feet at  5:27 AM Sunday
Low  tide  0.2 feet at 11:54 AM Sunday
High tide  2.3 feet at  6:31 PM Sunday
Low  tide  0.7 feet at 12:31 AM Monday
High tide  2.2 feet at  6:24 AM Monday

At Tinian Island...
Low  tide  0.8 feet at 11:14 PM Saturday
High tide  1.4 feet at  4:31 AM Sunday
Low  tide  0.1 feet at 11:21 AM Sunday
High tide  1.5 feet at  6:00 PM Sunday
Low  tide  0.6 feet at 11:57 PM Sunday
High tide  1.5 feet at  5:41 AM Monday

At Tanapag Harbor, Saipan...
Low  tide  1.0 feet at 11:53 PM Saturday
High tide  2.0 feet at  5:34 AM Sunday
Low  tide  0.2 feet at 12:01 PM Sunday
High tide  2.1 feet at  6:45 PM Sunday
Low  tide  0.8 feet at 12:33 AM Monday
High tide  2.1 feet at  6:35 AM Monday

* 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.

$$