244
FZPQ50 PGUM 050529
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
329 PM ChST Sat Jul 5 2025

.DISCUSSION...A moderate risk of rip currents will continue
along east facing reefs through Sunday, becoming low Sunday
night. A low risk will persist along all other reefs. Surf and rip
risk could rise by around midweek along north and especially west
facing reefs due to a west-northwest swell emanating from a
distant tropical disturbance to our northwest. A moderate risk of
lightning is expected Sunday into next week.

$$

GUZ001-MPZ001>003-052030-
Guam-Rota-Tinian-Saipan-
329 PM ChST Sat Jul 5 2025

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

.TONIGHT...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............1 to 2 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 3 to 4 feet.
      Primary period...............9 seconds.
Water Temperature
      Ritidian buoy................87 Degrees.
Winds..............................Light and variable.

.SUNDAY...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............1 to 2 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...............9 seconds.
Max Heat Index.....................Around 101.
Winds..........................South to southwest 5 to 10 mph.

.SUNDAY NIGHT...
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 2 feet.
      West  facing reefs............Around 1 foot.
Swell/Period
      Primary swell................East at 2 to 3 feet.
      Primary period...............9 seconds.
Winds..............................Light and variable.


Tide information for the next 36 hours...

At Apra Harbor, Guam...
Low  tide  1.7 feet at  9:21 PM Saturday
High tide  2.4 feet at  3:03 AM Sunday
Low  tide  0.4 feet at 10:43 AM Sunday
High tide  2.1 feet at  6:21 PM Sunday
Low  tide  1.8 feet at 10:31 PM Sunday
High tide  2.3 feet at  3:42 AM Monday

At Rota Island...
Low  tide  1.6 feet at  9:15 PM Saturday
High tide  2.2 feet at  3:00 AM Sunday
Low  tide  0.4 feet at 10:37 AM Sunday
High tide  2.0 feet at  6:18 PM Sunday
Low  tide  1.7 feet at 10:25 PM Sunday
High tide  2.2 feet at  3:39 AM Monday

At Tinian Island...
Low  tide  1.2 feet at  8:16 PM Saturday
High tide  1.7 feet at  2:12 AM Sunday
Low  tide  0.0 feet at 10:29 AM Sunday
High tide  1.4 feet at  6:35 PM Sunday
Low  tide  1.4 feet at  9:18 PM Sunday
High tide  1.7 feet at  2:40 AM Monday

At Tanapag Harbor, Saipan...
Low  tide  1.4 feet at  8:40 PM Saturday
High tide  2.1 feet at  2:50 AM Sunday
Low  tide  0.1 feet at 10:54 AM Sunday
High tide  1.7 feet at  7:02 PM Sunday
Low  tide  1.6 feet at  9:38 PM Sunday
High tide  2.1 feet at  3:19 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. If caught in a
rip current, swim parallel to the beach rather than against the
current.

$$