FPMY50 PGUM 121817

ZFPGUM



Zone Forecast for Guam and the Northern Marianas

National Weather Service Tiyan GU

417 AM ChST Sat Dec 13 2025



GUZ001-MPZ001-130830-

Guam-Rota-

417 AM ChST Sat Dec 13 2025



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

mph. Highs near 86. Chance of showers 20 percent.

.TONIGHT...Mostly cloudy with isolated showers. East winds 15 to 20 

mph. Lows around 78. Chance of showers 20 percent.

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

mph. Highs near 86. Chance of showers 20 percent.

.SUNDAY NIGHT AND MONDAY...Partly cloudy with isolated showers. East

winds 15 to 20 mph. Lows around 78. Highs near 86. Chance of showers

20 percent.

.MONDAY NIGHT...Mostly cloudy with a 20 percent chance of showers.

Lows in the upper 70s.

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

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



$$



MPZ002-003-130830-

Tinian-Saipan-

417 AM ChST Sat Dec 13 2025



...SURF IS EXPECTED TO APPROACH HAZARDOUS LEVELS ALONG NORTH FACING 

REEFS OVER THE WEEKEND... 

...THE RISK OF RIP CURRENTS IS EXPECTED TO APPROACH HIGH ALONG NORTH

AND EAST FACING REEFS FOR THE WEEKEND... 



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

mph. Highs near 86. Chance of showers 20 percent.

.TONIGHT...Mostly cloudy with isolated showers. East winds 15 to 20 

mph. Lows around 79. Chance of showers 20 percent.

.SUNDAY...Breezy. Partly sunny with isolated showers. East winds

20 to 25 mph. Highs near 86. Chance of showers 20 percent.

.SUNDAY NIGHT AND MONDAY...Partly cloudy. Isolated showers. East 

winds 15 to 20 mph. Lows around 79. Highs near 86. Chance of showers

20 percent.

.MONDAY NIGHT THROUGH WEDNESDAY...Breezy. Partly cloudy with a

20 percent chance of showers. Lows in the upper 70s. Highs in the

upper 80s.

.WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of

showers. Lows in the upper 70s.

.THURSDAY THROUGH FRIDAY...Breezy. Partly cloudy with a 20 percent

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



$$