762
FZPQ50 PGUM 061800
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
400 AM ChST Mon Jul 7 2025

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

$$

GUZ001-MPZ001>003-070815-
Guam-Rota-Tinian-Saipan-
400 AM ChST Mon Jul 7 2025

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

.TODAY...
Rip Current Risk.....Low *.
Surf Height
      North facing reefs............2 to 3 feet.
      East  facing reefs............3 to 5 feet.
      South facing reefs............1 to 2 feet.
      West  facing reefs..........Around 1 foot.
Swell/Period
      Primary swell................East at 2 to 3 feet.
      Primary period...............8 seconds.
Water Temperature
      Ritidian buoy..........86 Degrees.
Max Heat Index.........Around 100.
Winds...............Southwest at 10 to 15 mph.

.TONIGHT...
Rip Current Risk.....Low *.
Surf Height
      North facing reefs............2 to 3 feet.
      East  facing reefs............3 to 5 feet.
      South facing reefs............1 to 2 feet.
      West  facing reefs..........Around 1 foot.
Swell/Period
      Primary swell................East at 2 to 3 feet.
      Primary period...............8 seconds.
Winds...............Southwest at 10 to 15 mph.

.TUESDAY...
Rip Current Risk.....Low *.
Surf Height
      North facing reefs............1 to 2 feet.
      East  facing reefs............2 to 3 feet.
      South facing reefs..........Around 1 foot.
      West  facing reefs..........Around 1 foot.
Swell/Period
      Primary swell................East at around 2 feet.
      Primary period...............8 seconds.
Max Heat Index.........Around 102.
Winds...............South at 10 to 15 mph.

Tide information for the next 36 hours...

At Apra Harbor, Guam...
Low  tide  0.2 feet at 11:25 AM Monday
High tide  2.2 feet at  7:10 PM Monday
Low  tide  1.9 feet at 11:38 PM Monday
High tide  2.3 feet at  4:26 AM Tuesday
Low  tide  0.0 feet at 12:07 PM Tuesday
High tide  2.3 feet at  7:50 PM Tuesday

At Rota Island...
Low  tide  0.2 feet at 11:19 AM Monday
High tide  2.1 feet at  7:07 PM Monday
Low  tide  1.8 feet at 11:32 PM Monday
High tide  2.2 feet at  4:23 AM Tuesday
Low  tide  0.0 feet at 12:01 PM Tuesday
High tide  2.2 feet at  7:47 PM Tuesday

At Tinian Island...
Low  tide -0.1 feet at 11:08 AM Monday
High tide  1.5 feet at  7:22 PM Monday
Low  tide  1.5 feet at 10:19 PM Monday
High tide  1.7 feet at  3:16 AM Tuesday
Low  tide -0.2 feet at 11:47 AM Tuesday
High tide  1.6 feet at  8:02 PM Tuesday

At Tanapag Harbor, Saipan...
Low  tide  0.0 feet at 11:31 AM Monday
High tide  1.8 feet at  7:52 PM Monday
Low  tide  1.7 feet at 10:36 PM Monday
High tide  2.1 feet at  3:58 AM Tuesday
Low  tide -0.2 feet at 12:11 PM Tuesday
High tide  1.9 feet at  8:29 PM Tuesday

* 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.

$$