214
FZPQ50 PGUM 020600
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
400 PM ChST Tue Sep 2 2025

.DISCUSSION...There will be a moderate risk of rip currents along
east facing reefs through at least Wednesday night. By the weekend the risk
of rip currents will likely be low along all reefs. There will also
be a moderate risk of lightning through the weekend.

$$

GUZ001-MPZ001>003-021915-
Guam-Rota-Tinian-Saipan-
400 PM ChST Tue Sep 2 2025

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

.TONIGHT...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............2 to 4 feet.
      East  facing reefs............4 to 6 feet.
      South facing reefs............2 to 4 feet.
      West  facing reefs............Around 1 foot.
Swell/Period
      Primary swell................East at 3 to 4 feet.
      Primary period...............8 seconds.
Water Temperature
      Ritidian buoy..........86 Degrees.
Winds...............Southeast at 20 mph shifting to the east 10
                    mph after midnight.

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

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


Tide information for the next 36 hours...

At Apra Harbor, Guam...
High tide  2.1 feet at  5:26 PM Tuesday
Low  tide  1.8 feet at 10:09 PM Tuesday
High tide  2.0 feet at  2:17 AM Wednesday
Low  tide  0.2 feet at 10:11 AM Wednesday
High tide  2.2 feet at  6:07 PM Wednesday
Low  tide  1.7 feet at 11:06 PM Wednesday
High tide  2.1 feet at  3:35 AM Thursday

At Rota Island...
High tide  1.9 feet at  5:23 PM Tuesday
Low  tide  1.6 feet at 10:03 PM Tuesday
High tide  1.9 feet at  2:14 AM Wednesday
Low  tide  0.2 feet at 10:05 AM Wednesday
High tide  2.0 feet at  6:04 PM Wednesday
Low  tide  1.6 feet at 11:00 PM Wednesday
High tide  2.0 feet at  3:32 AM Thursday

At Tinian Island...
High tide  1.4 feet at  5:34 PM Tuesday
Low  tide  1.3 feet at  8:55 PM Tuesday
High tide  1.5 feet at  1:09 AM Wednesday
Low  tide -0.1 feet at  9:54 AM Wednesday
High tide  1.4 feet at  6:08 PM Wednesday
Low  tide  1.3 feet at  9:54 PM Wednesday
High tide  1.5 feet at  2:18 AM Thursday

At Tanapag Harbor, Saipan...
High tide  1.8 feet at  5:56 PM Tuesday
Low  tide  1.7 feet at  9:35 PM Tuesday
High tide  1.9 feet at  1:40 AM Wednesday
Low  tide  0.1 feet at 10:21 AM Wednesday
High tide  1.9 feet at  6:30 PM Wednesday
Low  tide  1.6 feet at 10:40 PM Wednesday
High tide  1.9 feet at  3:08 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. Rip currents
will be life threatening. If caught in a rip current, swim parallel
to the beach rather than against the current.

$$