013
FZPQ50 PGUM 081827
SRFGUM

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

.DISCUSSION...A low risk of rip currents continues along all reefs
this week. Surf and rip risk could rise toward the weekend along
west and north facing reefs, due to west-northwest swell emanating
from a tropical disturbance to the distant northwest. A moderate
risk of lightning is expected for most of the week due to an
unsettled weather pattern.

$$

GUZ001-MPZ001>003-091000-
Guam-Rota-Tinian-Saipan-
427 AM ChST Wed Jul 9 2025

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

.TODAY...
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............Around 1 feet.
Swell/Period
      Primary swell................East at 2 to 3 feet.
      Primary period...............8 seconds.
Water Temperature
      Ritidian buoy..........86 Degrees.
Max Heat Index.........Around 101.
Winds...............South at 10 to 15 mph.

.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............Around 1 feet.
Swell/Period
      Primary swell................East at 2 to 3 feet.
      Primary period...............8 seconds.
Winds...............Southeast at 10 to 15 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............Around 1 feet.
Swell/Period
      Primary swell................East at 2 to 3 feet.
      Primary period...............8 seconds.
Max Heat Index.........Around 102.
Winds...............Southeast at 10 to 15 mph.


Tide information for the next 36 hours...

At Apra Harbor, Guam...
High tide  2.4 feet at  5:12 AM Wednesday
Low  tide -0.1 feet at 12:48 PM Wednesday
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

At Rota Island...
High tide  2.2 feet at  5:09 AM Wednesday
Low  tide -0.1 feet at 12:42 PM Wednesday
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

At Tinian Island...
Low  tide -0.2 feet at 12:28 PM Wednesday
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

At Tanapag Harbor, Saipan...
High tide  2.1 feet at  4:42 AM Wednesday
Low  tide -0.3 feet at 12:55 PM Wednesday
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 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.

$$