Apra harbor
NOAA CO-OPS station 1630000
Observed , 11 minutes ago
Challenging
Today
Light and variable winds. Water 87°F, air 85°F. Today: Southwest Wind 5 To 10 Kt.
It tells you it is rough now. The app tells you before it gets rough, with alerts at the wind and wave limits you set.
Get Buoycast for iPhoneWind
Speed
2.9kn
Gust
4.7kn
Direction
4° N
Trend
Rising
Last 12 hours0 to 8.9 kn
Water Level
-0.1ft
Datum
MLLW
Last 12 hours-0.1 to 1.9 ft
Air temp
85°F
78 to 88°F today
Water temp
87°F
86 to 87°F today
Pressure
1012mbar
Tendency
Rising
3 hour change
+0.4 mbar
Last 12 hours1011 to 1013 mbar
Zone forecast
Today
Southwest Wind 5 To 10 Kt. Seas 4 To 5 Ft. Wave Detail: North 4 Ft At 8 Seconds, West 2 Ft At 4 Seconds, West 2 Ft At 8 Seconds And Northeast 2 Ft At 9 Seconds.
Tonight
West Wind 10 Kt. Seas Around 4 Ft. Wave Detail: Northeast 3 Ft At 8 Seconds, West 2 Ft At 4 Seconds And West 2 Ft At 9 Seconds. Scattered Showers With Isolated Thunderstorms.
Friday
West Wind 5 To 10 Kt. Seas Around 4 Ft. Wave Detail: Northeast 3 Ft At 8 Seconds, West 2 Ft At 4 Seconds And West 2 Ft At 9 Seconds. Scattered Showers With Isolated Thunderstorms.
NWS zone Guam Coastal Waters
Last 24 hours
Every 3 hours, over the last 12 hours. Air 78 to 88°F, water 86 to 87°F, pressure 1,011 to 1,013 mbar over the same window.
1 station within 30 NM
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Get Buoycast for iPhoneCommon questions
Can I be notified when conditions change at station 1630000?
Buoycast Pro lets you set your own limits on wind, waves or pressure and sends a threshold notification when this station crosses them.
Does this page show NOAA warnings for this area?
Watches, warnings, and advisories for Guam Coastal Waters appear alongside the conditions, here and in the app. Pro also pushes NOAA watches, warnings, and advisories when they are issued.
Can I see the forecast against what station 1630000 measured?
This page shows measurements only. Buoycast Pro charts the NOAA forecast against them so you can see where the two diverge.
Can I keep station 1630000 for next time?
Save it as a favorite and Buoycast opens on the stations you run.
Station 1630000
13°26'35" N 144°39'22" E
Measured by 400+ NOAA CO-OPS stations. Observations from the Center for Operational Oceanographic Products and Services, forecasts and advisories from the National Weather Service. Not for navigation.