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FZPQ50 PGUM 021849
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
449 AM ChST Thu Jul 3 2025

.DISCUSSION...There will be a moderate risk of rip currents along
east facing reefs of the Marianas through the weekend, except maybe
briefly tonight. There will be little change in surf through the
weekend.

$$

GUZ001-MPZ001>003-031000-
Guam-Rota-Tinian-Saipan-
449 AM ChST Thu Jul 3 2025

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

.TODAY...
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............1 to 3 feet.
Swell/Period
      Primary swell................East at around 3 feet.
      Primary period...............8 seconds.
Water Temperature
      Ritidian buoy..........86 Degrees.
Max Heat Index.........Around 99.
Winds...............Southeast at around 10 mph.

.TONIGHT...
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............1 to 3 feet.
Swell/Period
      Primary swell................East at around 3 feet.
      Primary period...............8 seconds.
Winds...............Southeast at around 10 mph.

.FRIDAY...
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............2 to 4 feet.
Swell/Period
      Primary swell................East at 3 to 4 feet.
      Primary period...............8 seconds.
Max Heat Index.........Around 102.
Winds...............Southeast at around 10 mph.


Tide information for the next 36 hours...

At Apra Harbor, Guam...
Low  tide  1.1 feet at  8:26 AM Thursday
High tide  1.8 feet at  2:01 PM Thursday
Low  tide  1.2 feet at  7:27 PM Thursday
High tide  2.4 feet at  2:02 AM Friday
Low  tide  0.8 feet at  9:15 AM Friday
High tide  1.9 feet at  3:45 PM Friday
Low  tide  1.5 feet at  8:18 PM Friday

At Rota Island...
Low  tide  1.0 feet at  8:20 AM Thursday
High tide  1.7 feet at  1:58 PM Thursday
Low  tide  1.1 feet at  7:21 PM Thursday
High tide  2.3 feet at  1:59 AM Friday
Low  tide  0.8 feet at  9:09 AM Friday
High tide  1.7 feet at  3:42 PM Friday
Low  tide  1.4 feet at  8:12 PM Friday

At Tinian Island...
Low  tide  0.6 feet at  8:20 AM Thursday
High tide  1.1 feet at  1:46 PM Thursday
Low  tide  0.8 feet at  6:44 PM Thursday
High tide  1.7 feet at  1:28 AM Friday
Low  tide  0.4 feet at  9:07 AM Friday
High tide  1.1 feet at  3:42 PM Friday
Low  tide  1.0 feet at  7:24 PM Friday

At Tanapag Harbor, Saipan...
Low  tide  0.8 feet at  8:53 AM Thursday
High tide  1.3 feet at  2:12 PM Thursday
Low  tide  0.9 feet at  7:20 PM Thursday
High tide  2.1 feet at  2:08 AM Friday
Low  tide  0.5 feet at  9:38 AM Friday
High tide  1.4 feet at  4:16 PM Friday
Low  tide  1.2 feet at  7:55 PM 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. If caught in a
rip current, swim parallel to the beach rather than against the
current.

$$