591
FPMY50 PGUM 010543
ZFPGUM

Zone Forecast for Guam and the Northern Marianas
National Weather Service Tiyan GU
343 PM ChST Mon Dec 1 2025

GUZ001-MPZ001-012100-
Guam-Rota-
343 PM ChST Mon Dec 1 2025

...HIGH SURF ADVISORY IN EFFECT UNTIL 5 PM CHST TUESDAY ALONG NORTH
FACING REEFS...
...HIGH RISK OF RIP CURRENTS THROUGH WEDNESDAY AFTERNOON ALONG NORTH
AND EAST FACING REEFS...

.TONIGHT...Mostly cloudy with scattered showers. Isolated
thunderstorms near Guam. East winds 15 to 20 mph. Lows around 77.
Chance of showers 50 percent for Guam, 30 percent for Rota.
.TUESDAY...Partly sunny with isolated showers. East winds 15 to 20
mph. Highs around 88. Chance of showers 20 percent.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy with isolated showers.
East winds 10 to 15 mph. Lows around 78. Highs around 88. Chance of
showers 20 percent.
.WEDNESDAY NIGHT...Mostly cloudy with isolated showers. East winds
15 to 20 mph. Lows around 78. Chance of showers 20 percent.
.THURSDAY...Partly sunny with isolated showers and thunderstorms.
East winds 10 to 15 mph. Highs around 88. Chance of showers
20 percent.
.THURSDAY NIGHT...Mostly cloudy with a 40 percent chance of showers
and a slight chance of thunderstorms. Lows in the upper 70s.
.FRIDAY...Partly sunny with a 30 percent chance of showers. Highs in
the upper 80s.
.FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of showers.
Lows in the upper 70s.
.SATURDAY THROUGH MONDAY...Partly cloudy with a 20 percent chance of
showers. Highs in the upper 80s. Lows in the upper 70s.

$$

MPZ002-003-012100-
Tinian-Saipan-
343 PM ChST Mon Dec 1 2025

...HIGH SURF ADVISORY IN EFFECT UNTIL 5 PM CHST TUESDAY ALONG NORTH
FACING REEFS...
...HIGH RISK OF RIP CURRENTS THROUGH WEDNESDAY AFTERNOON ALONG NORTH
AND EAST FACING REEFS...

.TONIGHT...Mostly cloudy with scattered showers becoming partly
cloudy with isolated showers late evening. East winds 15 to 20 mph.
Lows around 78. Chance of showers 30 percent.
.TUESDAY AND TUESDAY NIGHT...Partly cloudy with isolated light
showers. Southeast winds 15 to 20 mph. Highs around 88. Lows around
77. Chance of showers 10 percent.
.WEDNESDAY THROUGH THURSDAY...Partly cloudy with isolated showers.
East winds 15 to 20 mph. Highs around 88. Lows around 78. Chance of
showers 20 percent.
.THURSDAY NIGHT...Mostly cloudy with a 40 percent chance of showers.
Lows in the upper 70s.
.FRIDAY...Partly sunny with a 20 percent chance of showers. Highs in
the upper 80s.
.FRIDAY NIGHT THROUGH MONDAY...Partly cloudy with a 20 percent
chance of showers. Lows in the upper 70s. Highs in the upper 80s.

$$