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FZPQ50 PGUM 280546
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
346 PM ChST Sat Jun 28 2025

.DISCUSSION...A moderate risk of rip currents is expected along east
facing reefs of the Marianas for at least the next several days, with
rip current risk to briefly become moderate along west reefs starting
Tuesday. A moderate risk of lightning is expected through Tuesday as
well.

$$

GUZ001-MPZ001>003-282000-
Guam-Rota-Tinian-Saipan-
346 PM ChST Sat Jun 28 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............2 to 4 feet.
      East  facing reefs............3 to 5 feet.
      South facing reefs............1 to 2 feet.
      West  facing reefs............2 to 3 feet.
Swell/Period
      Primary swell................East at 3 to 4 feet.
      Primary period...............8 seconds.
Water Temperature
      Ritidian buoy..........86 Degrees.
Winds...............Southwest at 10 mph.

.SUNDAY...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............2 to 4 feet.
      East  facing reefs............3 to 5 feet.
      South facing reefs............1 to 2 feet.
      West  facing reefs............2 to 3 feet.
Swell/Period
      Primary swell................East at 3 to 4 feet.
      Primary period...............8 seconds.
Max Heat Index.........Around 99.
Winds...............Southwest at 10 to 15 mph.

.SUNDAY NIGHT...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............2 to 4 feet.
      East  facing reefs............3 to 5 feet.
      South facing reefs............1 to 2 feet.
      West  facing reefs............2 to 3 feet.
Swell/Period
      Primary swell................East at 3 to 4 feet.
      Primary period...............8 seconds.
Winds...............Southwest at 10 to 20 mph.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
Low  tide -0.3 feet at  3:59 PM Saturday
High tide  2.6 feet at 11:22 PM Saturday
Low  tide  1.8 feet at  4:46 AM Sunday
High tide  2.5 feet at  9:17 AM Sunday
Low  tide  0.0 feet at  4:43 PM Sunday
High tide  2.6 feet at 12:03 AM Monday

At Rota Island...
Low  tide -0.3 feet at  3:53 PM Saturday
High tide  2.4 feet at 11:19 PM Saturday
Low  tide  1.6 feet at  4:40 AM Sunday
High tide  2.3 feet at  9:14 AM Sunday
Low  tide  0.0 feet at  4:37 PM Sunday
High tide  2.4 feet at 12:00 AM Monday

At Tinian Island...
Low  tide -0.4 feet at  3:34 PM Saturday
High tide  1.8 feet at 11:21 PM Saturday
Low  tide  1.4 feet at  4:13 AM Sunday
High tide  1.7 feet at  8:19 AM Sunday
Low  tide -0.2 feet at  4:17 PM Sunday
High tide  1.7 feet at 11:56 PM Sunday

At Tanapag Harbor, Saipan...
Low  tide -0.5 feet at  4:05 PM Saturday
High tide  2.4 feet at 11:51 PM Saturday
Low  tide  1.6 feet at  5:21 AM Sunday
High tide  1.9 feet at  9:20 AM Sunday
Low  tide -0.3 feet at  4:50 PM Sunday
High tide  2.3 feet at 12:27 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.

$$