455 

FPMY50 PGUM 301658

ZFPGUM



Zone Forecast for Guam and the Northern Marianas

National Weather Service Tiyan GU

258 AM ChST Wed Dec 31 2025



GUZ001-MPZ001-310815-

Guam-Rota-

258 AM ChST Wed Dec 31 2025



...HIGH SURF ADVISORY REMAINS IN EFFECT ALONG NORTH FACING REEFS 

UNTIL 4 PM CHST WEDNESDAY... 

...HIGH RIP CURRENT RISK REMAINS IN EFFECT ALONG NORTH FACING REEFS 

UNTIL 4 PM CHST THIS AFTERNOON...



.TODAY...Partly sunny with isolated showers. East winds 15 to 20 

mph. Highs around 85. Chance of showers 20 percent. 

.TONIGHT...Mostly cloudy with scattered showers. East winds 10 to

15 mph. Lows around 77. Chance of showers 30 percent.   

.NEW YEARS DAY...Partly cloudy with isolated showers. East winds 15 

to 20 mph. Highs around 85. Chance of showers 20 percent. 

.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Isolated showers. East

winds 10 to 15 mph. Lows around 77. Highs around 85. Chance of

showers 10 percent. 

.FRIDAY NIGHT THROUGH TUESDAY...Partly cloudy with a 20 percent 

chance of showers. Lows in the upper 70s. Highs in the upper 80s. 



$$



MPZ002-003-310815-

Tinian-Saipan-

258 AM ChST Wed Dec 31 2025



...HIGH SURF ADVISORY REMAINS IN EFFECT ALONG NORTH FACING REEFS 

UNTIL 4 PM CHST WEDNESDAY... 

...HIGH RIP CURRENT RISK REMAINS IN EFFECT ALONG NORTH FACING REEFS 

UNTIL 4 PM CHST THIS AFTERNOON...



.TODAY...Partly sunny with scattered showers. East winds 15 to 20 

mph. Highs around 85. Chance of showers 40 percent. 

.TONIGHT...Mostly cloudy with scattered showers. East winds 10 to

15 mph. Lows around 79. Chance of showers 40 percent.   

.NEW YEARS DAY...Partly cloudy with isolated showers. East winds

10 to 15 mph. Highs around 85. Chance of showers 10 percent.   

.THURSDAY NIGHT AND FRIDAY...Partly cloudy with isolated showers.

Southeast winds 10 to 15 mph. Lows around 79. Highs around 86.

Chance of showers 10 percent. 

.FRIDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy with a 20 percent

chance of showers. Lows in the upper 70s. Highs in the upper 80s.   

.TUESDAY...Partly sunny with a 20 percent chance of showers. Highs 

in the upper 80s. 



$$