Pago Pago, American Samoa Weather Conditions

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Current Conditions

  • 79°
  • Clear
  • Wind: ENE 5 mph
  • Humidity: 74%
  • Visibility: 10.0 miles
  • Dew Point: 70°
  • Pressure: 29.84 in. 0

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Next 12 Hours

4  am
7  am
10  am
1  pm
4  pm
Overcast
Overcast
Overcast
Overcast
Overcast
Overcast
Overcast
Overcast
Mostly Cloudy
Mostly Cloudy
76°
75°
78°
81°
80°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Overcast
  • High: 81 °
  • Low: 75 °
  • Overcast
  • Tuesday
  • Partly Cloudy
  • High: 81 °
  • Low: 75 °
  • Partly Cloudy
  • Wednesday
  • Clear
  • High: 82 °
  • Low: 76 °
  • Clear
  • Thursday
  • Clear
  • High: 83 °
  • Low: 76 °
  • Clear
  • Friday
  • Partly Cloudy
  • High: 82 °
  • Low: 76 °
  • Partly Cloudy

Forecast for Pago Pago, American Samoa

Updated: 9:15 am SST on December 07, 2005

  • Today

    Occasional showers with isolated thunderstorms. Highs in the mid 80s. Variable winds 10 mph...with higher gusts in showers.

  • Tonight and Thursday

    Scattered showers with isolated thunderstorms. Lows near 80. High near 90. Variable winds 10 mph.

  • Friday and Saturday

    Occasional showers. Highs in the upper 80s. Lows near 80. Variable winds 10 mph.

  • Sunday

    A few showers. Highs near 90. Northwest winds 10 to 15 mph.

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NWS Forecaster Discussion




Area forecast discussion...updated 
National Weather Service tiyan GU 
450 PM chst Monday Aug 31 2015 


Updated to add micronesian discussion sections 


Synopsis... 
radar and satellite show isolated showers and thunderstorms 
across the area with heavier showers fueled by island effect 
convection. A monsoon trough runs through a weak circulation 
southwest of Guam near 11n143e. Also...a weak disturbance well NE 
of Saipan is causing showers and thunderstorms near 16n157e. VAD 
gradient winds are light easterly and buoys range from 3 feet at 
ipan to 5 to 6 feet at tanapag. 


&& 


Discussion... 
generally fair weather is expected this week except a moist lower 
atmosphere and light surface winds will trigger isolated showers 
and thunderstorms across the marianas through Wednesday at least. 
Most models indicate some middle-level drying by Thursday...but also 
indicate the weak monsoon trough currently along 11n-12n will edge 
northward as this week progresses. 


&& 


Marine... 
gentle to moderate marine conditions will continue. Wave grids 
were adjusted slightly based on wave watch model and wind grids 
were refreshed with gfs40 31/00z output. 


&& 


Eastern micronesia... 
stream line analysis shows a monsoon trough stretching east- 
southeastward across the western Pacific from 15n130e through weak 
circulations centered just southwest of Guam near 11n143e and just 
southwest of Majuro near 6n171e...then heads eastward past the 
date line at 6n. Scattered to numerous showers and isolated 
thunderstorms are found across a broad area of eastern micronesia 
mainly east of Kosrae south of 8n. The fringes of deep convection 
have made progress over Majuro and Kosrae waters with unsettled 
weather expected to persist on Majuro through at least Tuesday and 
through tonight on Kosrae. For Pohnpei...models show the bulk of 
scattered showers staying south and east of Pohnpei all week so 
opted to leave isolated coverage through the long term. Active 
weather in general is expected to slowly fade over the next few 
days with skies likely remaining mostly cloudy as broad but weak 
low-level convergence will persist across the region. 


&& 


Western micronesia... 
scattered showers are present within convergent monsoonal flow 
across Palau and Yap state. The zone of low-level convergence and 
associated shower activity is expected to shift south of Yap over 
the next 24 hours but remain over Koror through at least Tuesday 
night. Ridging tries to move over Palau and Yap state from the 
south...allowing drier conditions to move into the area by 
midweek. Quiet conditions are expected on Chuuk for the next 
couple of days. Activity from Pohnpei state will make it into 
Chuuk state by midweek...increasing cloud cover and possibly 
adding periods of scattered showers. 


&& 


Gum watches/warnings/advisories... 
GU...none. 
Marianas waters...none. 
&& 


$$ 


Simpson/Williams 



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