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FZPQ50 PGUM 240600
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
400 PM ChST Sun Aug 24 2025

.DISCUSSION...There will be a low risk of rip currents along all
reefs through Monday. The risk along east facing reefs will then
become moderate through at least Friday. There will also be a
moderate risk of lightning this week.

$$

GUZ001-MPZ001>003-241915-
Guam-Rota-Tinian-Saipan-
400 PM ChST Sun Aug 24 2025

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

.TONIGHT...
Rip Current Risk.....Low *.
Surf Height
      North facing reefs............1 to 3 feet.
      East  facing reefs............2 to 4 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............Around 1 foot.
      Primary swell................East at 1 to 3 feet.
      Primary period...............8 seconds.
Water Temperature
      Ritidian buoy..........86 Degrees.
Winds...............East at around 10 mph.

.MONDAY...
Rip Current Risk.....Low *.
Surf Height
      North facing reefs............1 to 3 feet.
      East  facing reefs............3 to 4 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............Around 1 foot.
Swell/Period
      Primary swell................East at 2 to 3 feet.
      Primary period...............8 seconds.
Max Heat Index.........Around 102.
Winds...............East at around 10 mph.

.MONDAY NIGHT...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............1 to 3 feet.
      East  facing reefs............3 to 5 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............Around 1 foot.
Swell/Period
      Primary swell................East at 2 to 4 feet.
      Primary period...............8 seconds.
Winds...............Northeast at 10 to 15 mph.


Tide information for the next 36 hours...

At Apra Harbor, Guam...
High tide  2.4 feet at  9:04 PM Sunday
Low  tide  1.1 feet at  2:57 AM Monday
High tide  2.4 feet at  8:21 AM Monday
Low  tide  0.4 feet at  3:05 PM Monday
High tide  2.4 feet at  9:26 PM Monday
Low  tide  1.0 feet at  3:33 AM Tuesday

At Rota Island...
High tide  2.3 feet at  9:01 PM Sunday
Low  tide  1.1 feet at  2:51 AM Monday
High tide  2.3 feet at  8:18 AM Monday
Low  tide  0.3 feet at  2:59 PM Monday
High tide  2.3 feet at  9:23 PM Monday
Low  tide  0.9 feet at  3:27 AM Tuesday

At Tinian Island...
High tide  1.6 feet at  8:43 PM Sunday
Low  tide  0.9 feet at  2:27 AM Monday
High tide  1.6 feet at  7:37 AM Monday
Low  tide  0.2 feet at  2:35 PM Monday
High tide  1.6 feet at  9:02 PM Monday
Low  tide  0.7 feet at  3:11 AM Tuesday

At Tanapag Harbor, Saipan...
High tide  2.1 feet at  9:25 PM Sunday
Low  tide  1.0 feet at  3:10 AM Monday
High tide  2.0 feet at  8:34 AM Monday
Low  tide  0.2 feet at  3:16 PM Monday
High tide  2.1 feet at  9:50 PM Monday
Low  tide  0.9 feet at  3:46 AM Tuesday

* 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.

$$