842
FZPQ50 PGUM 090609
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
409 PM ChST Wed Jul 9 2025

.DISCUSSION....A low risk of rip currents continues along all reefs
through Thursday night. Rip risk could become moderate along east
facing reefs late this week as the trade swell increases.

$$

GUZ001-MPZ001>003-092115-
Guam-Rota-Tinian-Saipan-
409 PM ChST Wed Jul 9 2025

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

.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............1 to 2 feet.
Swell/Period
      Primary swell................Southeast at 2 to 3 feet.
      Primary period...............8 seconds.
Water Temperature
      Ritidian buoy..........85 Degrees.
Winds...............South at around 10 mph.

.THURSDAY...
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............1 to 2 feet.
Swell/Period
      Primary swell................Southeast at 2 to 3 feet.
      Primary period...............8 seconds.
Max Heat Index.........Around 102.
Winds...............Southeast at around 10 mph.

.THURSDAY 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 3 feet.
      West  facing reefs............Around 1 foot.
Swell/Period
      Primary swell................East at 2 to 3 feet.
      Primary period...............8 seconds.
Winds...............Southeast at around 10 mph.


Tide information for the next 36 hours...

At Apra Harbor, Guam...
High tide  2.4 feet at  8:27 PM Wednesday
Low  tide  1.9 feet at  1:22 AM Thursday
High tide  2.4 feet at  5:57 AM Thursday
Low  tide -0.2 feet at  1:29 PM Thursday
High tide  2.5 feet at  9:01 PM Thursday
Low  tide  1.9 feet at  2:03 AM Friday

At Rota Island...
High tide  2.3 feet at  8:24 PM Wednesday
Low  tide  1.8 feet at  1:16 AM Thursday
High tide  2.3 feet at  5:54 AM Thursday
Low  tide -0.2 feet at  1:23 PM Thursday
High tide  2.3 feet at  8:58 PM Thursday
Low  tide  1.8 feet at  1:57 AM Friday

At Tinian Island...
High tide  1.7 feet at  8:39 PM Wednesday
Low  tide  1.5 feet at 12:05 AM Thursday
High tide  1.8 feet at  4:43 AM Thursday
Low  tide -0.3 feet at  1:09 PM Thursday
High tide  1.7 feet at  9:16 PM Thursday
Low  tide  1.6 feet at 12:54 AM Friday

At Tanapag Harbor, Saipan...
High tide  2.0 feet at  9:03 PM Wednesday
Low  tide  1.8 feet at 12:45 AM Thursday
High tide  2.1 feet at  5:27 AM Thursday
Low  tide -0.4 feet at  1:39 PM Thursday
High tide  2.1 feet at  9:37 PM Thursday
Low  tide  1.8 feet at  2:03 AM Friday

* 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.

$$