018
FZPQ50 PGUM 240725
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
Issued by National Weather Service Honolulu HI
525 PM ChST Tue Jun 24 2025

.DISCUSSION...A low risk of rip currents will become moderate along
east facing reefs Wednesday afternoon. There will be a moderate risk
for lightning through the week.

$$

GUZ001-MPZ001>003-242200-
Guam-Rota-Tinian-Saipan-
525 PM ChST Tue Jun 24 2025

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

.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............Flat.
Swell/Period
      Primary swell................East at 2 to 4 feet.
      Primary period...............8 seconds.
Water Temperature
      Ritidian buoy..........86 Degrees.
Winds...............East to northeast around 10 mph in the evening
                    becoming light.

.WEDNESDAY...
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............Flat.
Swell/Period
      Primary swell................East at 3 to 4 feet.
      Primary period...............8 seconds.
Max Heat Index.........Around 102.
Winds...............East to southeast at 10 to 15 mph.

.WEDNESDAY NIGHT...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............1 to 3 feet.
      East  facing reefs............4 to 6 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............Flat.
Swell/Period
      Primary swell................East at 3 to 5 feet.
      Primary period...............8 seconds.
Winds...............Southeast at 10 to 20 mph.


Tide information for the next 36 hours...

At Apra Harbor, Guam...
Low  tide -0.5 feet at 12:41 PM Tuesday
High tide  2.7 feet at  8:12 PM Tuesday
Low  tide  2.0 feet at  1:04 AM Wednesday
High tide  2.8 feet at  5:55 AM Wednesday
Low  tide -0.6 feet at  1:33 PM Wednesday
High tide  2.7 feet at  9:03 PM Wednesday
Low  tide  2.0 feet at  2:04 AM Thursday

At Rota Island...
Low  tide -0.5 feet at 12:35 PM Tuesday
High tide  2.5 feet at  8:09 PM Tuesday
Low  tide  1.8 feet at 12:58 AM Wednesday
High tide  2.6 feet at  5:52 AM Wednesday
Low  tide -0.6 feet at  1:27 PM Wednesday
High tide  2.5 feet at  9:00 PM Wednesday
Low  tide  1.8 feet at  1:58 AM Thursday

At Tinian Island...
Low  tide -0.2 feet at 12:18 PM Tuesday
High tide  2.0 feet at  8:10 PM Tuesday
Low  tide  0.6 feet at 12:41 AM Wednesday
High tide  2.1 feet at  5:53 AM Wednesday
Low  tide -0.2 feet at  1:10 PM Wednesday
High tide  2.0 feet at  9:01 PM Wednesday
Low  tide  0.6 feet at  1:41 AM Thursday

At Tanapag Harbor, Saipan...
Low  tide -0.8 feet at 12:42 PM Tuesday
High tide  2.3 feet at  8:38 PM Tuesday
Low  tide  1.9 feet at 12:53 AM Wednesday
High tide  2.4 feet at  5:36 AM Wednesday
Low  tide -0.8 feet at  1:37 PM Wednesday
High tide  2.4 feet at  9:30 PM Wednesday
Low  tide  1.9 feet at  2:15 AM Thursday

* 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.

$$