Pago Pago, American Samoa Weather Conditions

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Current Conditions

  • 84°
  • Scattered Clouds
  • Wind: SW 9 mph
  • Humidity: 61%
  • Visibility: 10.0 miles
  • Dew Point: 69°
  • Pressure: 29.92 in. 0
  • Heat Index: 88

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Next 12 Hours

5  pm
8  pm
11  pm
2  am
5  am
Rain Showers
Rain Showers
Rain Showers
Rain Showers
Rain Showers
Rain Showers
Partly Cloudy
Partly Cloudy
Clear
Clear
81°
81°
79°
77°
75°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Rain Showers
  • High: 86 °
  • Low: 75 °
  • Rain Showers
  • Sunday
  • Rain Showers
  • High: 86 °
  • Low: 75 °
  • Rain Showers
  • Monday
  • Rain Showers
  • High: 84 °
  • Low: 75 °
  • Rain Showers
  • Tuesday
  • Chance of Rain
  • High: 86 °
  • Low: 75 °
  • Chance of Rain
  • Wednesday
  • Partly Cloudy
  • High: 88 °
  • Low: 75 °
  • Partly Cloudy

Forecast for Pago Pago, American Samoa

Updated: 5:00 PM HST on October 25, 2014

  • Saturday

    Partly cloudy with rain showers in the afternoon. High of 86F. Winds less than 5 mph. Chance of rain 30%.

  • Saturday Night

    Partly cloudy with rain showers. Low of 75F. Winds less than 5 mph. Chance of rain 20%.

  • Sunday

    Partly cloudy with rain showers in the afternoon. High of 86F. Winds less than 5 mph. Chance of rain 20%.

  • Sunday Night

    Partly cloudy. Low of 75F. Winds less than 5 mph.

  • Monday

    Clear in the morning, then partly cloudy with rain showers. High of 84F. Winds from the South at 5 to 10 mph shifting to the West in the afternoon. Chance of rain 20%.

  • Monday Night

    Partly cloudy with rain showers. Low of 75F. Winds less than 5 mph. Chance of rain 20%.

  • Tuesday

    Clear in the morning, then partly cloudy with a chance of rain. High of 86F. Winds less than 5 mph. Chance of rain 20%.

  • Tuesday Night

    Partly cloudy with a chance of rain. Low of 75F. Winds less than 5 mph. Chance of rain 50%.

  • Wednesday

    Partly cloudy. High of 88F. Winds from the WNW at 5 to 10 mph.

  • Wednesday Night

    Partly cloudy. Low of 75F. Winds less than 5 mph.

  • Thursday

    Partly cloudy with a chance of a thunderstorm. High of 84F. Winds from the NNE at 5 to 10 mph. Chance of rain 40%.

  • Thursday Night

    Partly cloudy with a chance of a thunderstorm. Low of 75F. Winds from the North at 5 to 10 mph. Chance of rain 50%.

  • Friday

    Partly cloudy with a chance of a thunderstorm. High of 84F. Winds less than 5 mph. Chance of rain 50%.

  • Friday Night

    Partly cloudy. Low of 75F. Winds less than 5 mph.

  • Saturday

    Partly cloudy with a chance of a thunderstorm. High of 84F. Winds less than 5 mph. Chance of rain 50%.

  • Saturday Night

    Partly cloudy with a chance of a thunderstorm. Low of 73F. Winds from the NNW at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.4 in. possible.

  • Sunday

    Mostly cloudy with a chance of a thunderstorm. High of 86F. Winds from the ENE at 10 to 15 mph. Chance of rain 50%.

  • Sunday Night

    Overcast with a chance of a thunderstorm. Low of 73F. Winds from the ENE at 10 to 15 mph. Chance of rain 60% with rainfall amounts near 0.5 in. possible.

  • Monday

    Mostly cloudy with a chance of a thunderstorm. High of 86F. Winds from the ENE at 5 to 10 mph. Chance of rain 60%.

  • Monday Night

    Mostly cloudy with a chance of a thunderstorm. Low of 73F. Winds from the ENE at 5 to 10 mph. Chance of rain 40%.

  • Tuesday

    Partly cloudy with a chance of a thunderstorm. High of 86F. Winds from the NE at 5 to 10 mph. Chance of rain 20%.

  • Tuesday Night

    Partly cloudy. Low of 73F. Winds from the ENE at 5 to 15 mph.

  • Wednesday

    Clear. High of 86F. Winds from the NE at 5 to 15 mph.

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NWS Forecaster Discussion




Area forecast discussion 
National Weather Service tiyan GU 
656 am chst sun Oct 26 2014 


Marianas synopsis... 
trade-wind disturbances are situated west of the marianas around 
148e...and out to the east around 148-150e. Radar shows showers 
increasing east of the islands. Seas are between 5 and 7 feet at 
the ritidian and tanapag buoys. 


&& 


Discussion... 
models continue to show a slowly developing monsoon pattern over 
the next week to 10 days...with a wetter period developing for the 
marianas at some point--depending on the model. Have changed very 
little in the forecast other than to extend isolated thunder 
through Thursday night. Both the European model (ecmwf) and GFS are forecasting 
conditions more favorable for tropical cyclone development in the 
western Pacific basin than we have seen lately...mainly late this 
week and next week. 


&& 


Marine/surf... 
not much sign yet of declining swell height at the buoys...but 
will leave the high surf advisory alone and let day shift decide 
whether it needs to be extended. Once the surf drops...the rip 
risk will be moderate the rest of the week. 


&& 


Eastern micronesia... 
surface ridging between the tail end of a monsoon trough near Chuuk 
and a surface trough over the Marshall Islands will maintain 
relatively fair weather for Pohnpei through this evening...and for 
Kosrae until tonight. Wet weather associated with the surface trough 
is going to linger near Majuro through this afternoon. Once the surface 
trough moves west of the Marshalls this evening...a drier period 
is expected. On the other hand...shower coverage will increase over 
Kosrae on Monday...and Pohnpei by Monday evening as this same trough 
arrives. Latest ascat satellite imagery reveals a near-equatorial 
trough meandering eastward from a circulation near the date line 
at 5n178e to beyond 6n155w. A fresh trade-wind surge passing south 
of Hawaii will likely enhance surface convergence along this trough 
over the next few days. As the trough slowly progresses westward 
starting Monday afternoon...convection near it will begin to affect 
Majuro. This same pattern will also occur near Kosrae and Pohnpei 
around Monday night. Toward midweek...weaker trades should allow 
convection to decrease near the near-equatorial trough over the 
region. 


North-northeast swells will gradually subside and let surf across 
Chuuk and Pohnpei states to fall below hazardous levels this 
afternoon. Readings from the buoy at Kalo Majuro indicate north- 
northeast swells are peaking near 4 feet at 11 seconds. Surf of 5 to 
6 feet will continue to combine with Spring high tides of 4 to 5 feet 
through Monday. This will lead to possible beach erosion but no 
inundation is anticipated. 


&& 


Western micronesia... 
a circulation embedded in the eastern end of a weak monsoon trough 
will pass southwest of weno island in Chuuk state today. Converging 
winds along its northern periphery will keep sporadic convection 
near Chuuk lagoon through this evening. By Monday...the surface ridge 
sliding westward from Pohnpei should introduce quieter weather. 
Toward midweek...the remnants of a surface trough currently over 
the Marshall Islands might put an end to the quiet weather. Refer 
to the second paragraph under the eastern micronesia discussion 
above for hazardous surf conditions through this afternoon. 


A weak monsoon trough will linger near Koror and Yap for the next 
few days. Gentle winds near this trough will not generate much 
rainfall across either locale. Instead...a series of small trade 
disturbances merging into the trough from the north will trigger 
periodic showers and a few thunderstorms for both places through 
Monday night. Afterward...uncertainty exists for the long term 
forecast depending on the future status of the circulation tracking 
westward from Chuuk. Both the GFS and UKMET suggest no major 
development as the circulation passes through western micronesia next 
week. However European model (ecmwf) and navgem are strengthening this system and 
establishing moderate monsoonal flow across the region near 
midweek. For now...just mentioned isolated thunderstorms in the 
long term forecast. Residual north-northeast swells will continue 
to produce higher risk of rip currents across Yap state and Palau 
through Monday. 


&& 


Gum watches/warnings/advisories... 
GU...high surf advisory until 4 PM chst this afternoon for 
guz001>004. 


Marianas waters...none. 
&& 


$$ 


Middlebrooke/chan 



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