Surf Forecast
Issued by NWS Tiyan, Guam

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14
596
FZPQ50 PGUM 311802
SRFGUM

Surf Zone Forecast for the Mariana Islands
National Weather Service Tiyan GU
402 AM ChST Sun Jun 1 2025

.DISCUSSION...A moderate risk of rip currents is expected along east
facing reefs through at least the first half of this week. A moderate
risk of lightning is expected through Monday.

$$

GUZ001-MPZ001>003-010915-
Guam-Rota-Tinian-Saipan-
402 AM ChST Sun Jun 1 2025

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

.TODAY...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............2 to 4 feet.
      East  facing reefs............4 to 6 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............1 to 2 feet.
Swell/Period
      Primary swell................East at 3 to 5 feet.
      Primary period...............8 seconds.
Water Temperature
      Ritidian buoy..........85 Degrees.
Max Heat Index.........Around 102.
Winds...............Southeast at around 10 mph.

.TONIGHT...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............2 to 4 feet.
      East  facing reefs............4 to 6 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............1 to 2 feet.
Swell/Period
      Primary swell................East at 3 to 4 feet.
      Primary period...............9 seconds.
Winds...............East at around 10 mph in the evening
                    becoming light.

.MONDAY...
Rip Current Risk.....Moderate *.
Surf Height
      North facing reefs............2 to 4 feet.
      East  facing reefs............4 to 6 feet.
      South facing reefs............1 to 3 feet.
      West  facing reefs............1 to 2 feet.
Swell/Period
      Primary swell................East at 3 to 4 feet.
      Primary period...............9 seconds.
Max Heat Index.........Around 101.
Winds...............East at around 10 mph.


Tide information for the next 36 hours...

At Apra Harbor, Guam...
Low  tide  1.8 feet at  6:12 AM Sunday
High tide  2.3 feet at 10:24 AM Sunday
Low  tide  0.0 feet at  6:00 PM Sunday
High tide  2.5 feet at  1:36 AM Monday
Low  tide  1.6 feet at  7:18 AM Monday
High tide  2.1 feet at 11:30 AM Monday

At Rota Island...
Low  tide  1.7 feet at  6:06 AM Sunday
High tide  2.1 feet at 10:21 AM Sunday
Low  tide  0.0 feet at  5:54 PM Sunday
High tide  2.3 feet at  1:33 AM Monday
Low  tide  1.5 feet at  7:12 AM Monday
High tide  1.9 feet at 11:27 AM Monday

At Tinian Island...
Low  tide  1.4 feet at  5:48 AM Sunday
High tide  1.6 feet at  9:24 AM Sunday
Low  tide -0.1 feet at  5:36 PM Sunday
High tide  1.8 feet at  1:30 AM Monday
Low  tide  1.3 feet at  7:00 AM Monday
High tide  1.4 feet at 10:36 AM Monday

At Tanapag Harbor, Saipan...
Low  tide  1.6 feet at  7:04 AM Sunday
High tide  1.8 feet at 10:21 AM Sunday
Low  tide -0.2 feet at  6:07 PM Sunday
High tide  2.3 feet at  1:51 AM Monday
Low  tide  1.4 feet at  8:08 AM Monday
High tide  1.6 feet at 11:45 AM Monday

* 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.

$$