136
FZPQ50 PGUM 210722
SRFGUM
SURF ZONE FORECAST FOR THE MARIANA ISLANDS
NATIONAL WEATHER SERVICE TIYAN GU
522 PM CHST SUN JUN 21 2026
DISCUSSION
THERE IS A MODERATE RISK OF RIP CURRENTS ALONG SOUTH- AND EAST-FACING
REEFS TONIGHT. THERE IS A LOW RISK OF LIGHTNING DURING THE AFTERNOON
HOURS OF MONDAY.
GUZ001-MPZ001>003-212230-
GUAM-ROTA-TINIAN-SAIPAN-
522 PM CHST SUN JUN 21 2026
36 HOUR SURF ZONE FORECAST FOR THE MARIANAS FROM 600 PM SUNDAY
THROUGH 600 AM TUESDAY
TONIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............1 TO 2 FEET.
EAST FACING REEFS............3 TO 5 FEET.
SOUTH FACING REEFS............3 TO 5 FEET.
WEST FACING REEFS............1 TO 2 FEET.
SWELL/PERIOD
PRIMARY SWELL................EAST AT 3 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............SOUTHEAST AT 2 FEET.
SECONDARY PERIOD.............10 SECONDS.
WATER TEMPERATURE
TANAPAG BUOY.......... 87 DEGREES.
WINDS...............SOUTHEAST AT 10 MPH IN THE EVENING
BECOMING LIGHT.
MONDAY
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............2 TO 3 FEET.
EAST FACING REEFS............4 TO 6 FEET.
SOUTH FACING REEFS............3 TO 5 FEET.
WEST FACING REEFS............2 TO 3 FEET.
SWELL/PERIOD
PRIMARY SWELL................EAST AT 4 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............SOUTHWEST AT 2 FEET.
SECONDARY PERIOD.............10 SECONDS.
MAX HEAT INDEX.........AROUND 101.
WINDS...............LIGHT AND VARIABLE.
MONDAY NIGHT
RIP CURRENT RISK.....MODERATE *.
SURF HEIGHT
NORTH FACING REEFS............2 TO 3 FEET.
EAST FACING REEFS............4 TO 6 FEET.
SOUTH FACING REEFS............3 TO 5 FEET.
WEST FACING REEFS............2 TO 3 FEET.
SWELL/PERIOD
PRIMARY SWELL................EAST AT 4 FEET.
PRIMARY PERIOD...............8 SECONDS.
SECONDARY SWELL..............SOUTHWEST AT 2 FEET.
SECONDARY PERIOD.............10 SECONDS.
WINDS...............LIGHT AND VARIABLE.
TIDE INFORMATION FOR THE NEXT 36 HOURS...
AT APRA HARBOR, GUAM...
LOW TIDE 0.6 FEET AT 6:46 PM SUNDAY
HIGH TIDE 2.6 FEET AT 1:46 AM MONDAY
LOW TIDE 1.1 FEET AT 8:20 AM MONDAY
HIGH TIDE 1.9 FEET AT 1:40 PM MONDAY
LOW TIDE 1.0 FEET AT 7:35 PM MONDAY
HIGH TIDE 2.6 FEET AT 2:19 AM TUESDAY
AT ROTA ISLAND...
LOW TIDE 0.6 FEET AT 6:40 PM SUNDAY
HIGH TIDE 2.5 FEET AT 1:43 AM MONDAY
LOW TIDE 1.1 FEET AT 8:14 AM MONDAY
HIGH TIDE 1.8 FEET AT 1:37 PM MONDAY
LOW TIDE 0.9 FEET AT 7:29 PM MONDAY
HIGH TIDE 2.4 FEET AT 2:16 AM TUESDAY
AT TINIAN ISLAND...
LOW TIDE 0.2 FEET AT 6:23 PM SUNDAY
HIGH TIDE 1.9 FEET AT 1:44 AM MONDAY
LOW TIDE 0.4 FEET AT 7:57 AM MONDAY
HIGH TIDE 1.4 FEET AT 1:38 PM MONDAY
LOW TIDE 0.3 FEET AT 7:12 PM MONDAY
HIGH TIDE 1.9 FEET AT 2:17 AM TUESDAY
AT TANAPAG HARBOR, SAIPAN...
LOW TIDE 0.3 FEET AT 6:52 PM SUNDAY
HIGH TIDE 2.3 FEET AT 1:53 AM MONDAY
LOW TIDE 0.8 FEET AT 8:42 AM MONDAY
HIGH TIDE 1.5 FEET AT 1:54 PM MONDAY
LOW TIDE 0.7 FEET AT 7:38 PM MONDAY
HIGH TIDE 2.2 FEET AT 2:23 AM 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. RIP CURRENTS
WILL BE LIFE THREATENING. IF CAUGHT IN A RIP CURRENT, SWIM PARALLEL
TO THE BEACH RATHER THAN AGAINST THE CURRENT.
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