Marine Weather and Tides
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
|Sunrise 6:21AM||Sunset 6:00PM||Sunday October 22, 2017 3:21 PM AST (19:21 UTC)||Moonrise 8:39AM||Moonset 8:17PM||Illumination 7%|
EDIT (on/off)  Help
|AMZ735 Coastal Waters Of Southern Puerto Rico Out 10 Nm- 1028 Am Ast Sun Oct 22 2017 |
.small craft should exercise caution...
Rest of today..East winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 7 seconds. Isolated showers.
Tonight..East winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 7 seconds. Isolated showers through the night.
Monday..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated showers.
Monday night..East winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 7 seconds. Isolated showers.
Tuesday..East winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas up to 5 feet. Dominant period 7 seconds. Scattered showers.
Wednesday..East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Isolated showers.
Thursday..Northeast winds 5 to 10 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Isolated showers.
|AMZ700 1028 Am Ast Sun Oct 22 2017 |
Synopsis for puerto rico and the uS. Virgin islands waters... A surface high pressure will continue north of the area for the next few days to promote a moderate to fresh easterly wind flow through at least midweek.
7 Day Forecast for Marine Location Near Playita Cortada, PRHourly EDIT Help
Area Discussion for - San Juan, PR  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxca62 tjsj 221513|
area forecast discussion
national weather service san juan pr
1113 am ast Sun oct 22 2017
Update Some brief trade wind showers affected portions of
eastern pr during the early morning hours with accumulations of
less than a tenth of an inch observed. Mostly fair weather
conditions will continue to prevail across the region throughout
the day as dry air at the mid to upper levels will continue to
restrict rainfall activity. Locally and diurnally induced showers,
however, may still develop across portions of western pr during
the afternoon hours. The aformentioned dry air, however, will
cause these showers to be short-lived with no significant
Aviation MostlyVFR conditions will prevail across all
terminals during the entire forecast period. Brief reductions to
MVFR conditions may occur near or over tjbq and tjmz due to
possible shra fm 22 16z to 22 22z. E-se winds of 10-15kt with sea
breeze variations through this afternoon. Winds diminishing below
10kt after 23 00z.
Marine Seas up to 5 feet with winds up to 15 knots across the
atlantic waters. Choppier conditions across the caribbean waters
with seas up to 6 feet and winds up to 20 knots, therefore, small
craft operators are urged to exercise caution. Low to moderate
rip current risk across all the local beaches.
Prev discussion issued 412 am ast Sun oct 22 2017
synopsis... Upper level ridge will continue as the main weather
feature across the region until at least Monday. This feature will
continue to produce a relatively dry and stable weather pattern
across the forecast area. An upper trough northeast of the region is
expected to sink southward over the lesser antilles by midweek
increasing the moisture across the local islands.
Short term... Today through Monday...
isolated passing showers during the early morning hours mostly
along the east coastal sections of the islands. Mostly fair
weather skies expected across puerto rico and the u.S. Virgin
islands during the rest of the day with limited shower development
expected across the forecast area. Shower activity if any should
focused along parts of the interior and west sections of puerto
rico with mostly sunny and fair weather skies elsewhere. Previous
tjsj 22 00z upper air sounding as well as the satellite derived|
precipitable water products both suggest continued dry and stable
airmass to persist through Monday except for occasional patches of
trade wind moisture which may lead to periods of early morning
and afternoon shower activity of short duration over parts of the
islands. No significant weather feature or impacts are anticipated
at this time.
Long term... Tuesday through
an upper level low trough northeast of the region is expected to
sink southward toward the leeward antilles on Tuesday and
Wednesday. This feature will result in a gradual increase in
moisture across the region by midweek. However, at this moment
not significant or widespread precipitation is expected.
A tropical wave is expected to reach the region Friday generating
a better chance of showers and thunderstorms through next
Aviation... PrevailingVFR conds at all terminals durg entire prd.
Few-sct cld lyrs fl025-fl035. Isold shra en route btw islands. Mstly
clr ovr much of land areas except for few passing shra along e
coastal sections of islands til 22 12z. Isold-sct shra fm 22 16z-
22 22z ovr ctrl mtn range of pr and vcsh nr tjmz. Sfc wnds lgt and
vrb bcmg fm e-se 10 to 15 kts W ocnl higher gust along coastal
areas aft 22 14z-22 23z.
Marine... Seas up to 6 feet and winds up to 20 knots will continue
across the surrounding waters through early in the week. Small
craft are urged to exercise caution across most of the coastal
waters. A low to moderate risk of rip currents is expected to
remain across most of the local beaches.
Preliminary point temps pops
Sju 89 77 87 75 20 20 20 20
stt 88 77 87 76 20 20 20 30
Sju watches warnings advisories
Short term... Gl
long term... .Ja
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|42085 - Southeast of Ponce, PR||9 mi||81 min||ENE 16 G 19||85°F||84°F||1014.5 hPa (-2.2)|
|JOXP4 - Jobos Bay Reserve, Puerto Rico||12 mi||96 min||E 11||86°F||1017 hPa||73°F|
|YABP4 - 9754228 - Yabucoa Harbor, PR||33 mi||51 min||88°F|
|AROP4 - 9757809 - Arecibo, PR||37 mi||51 min||ENE 15 G 21|
|SJNP4 - 9755371 - San Juan, PR||38 mi||51 min||83°F||1015.8 hPa|
|41053 - San Juan, PR||39 mi||51 min||E 16 G 19||83°F||1014.7 hPa|
Wind History for Penuelas (Punta Guayanilla), PR(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Ponce, Mercedita Airport, PR||7 mi||26 min||SE 17 G 23||mi||Fair||88°F||68°F||53%||1014.5 hPa|
Wind History from JPS (wind in knots)
|1 day ago||SE|
|2 days ago||SE|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Playa Cortada |
Click for Map
Sun -- 12:01 AM AST 0.20 feet Low Tide
Sun -- 06:21 AM AST Sunrise
Sun -- 08:39 AM AST Moonrise
Sun -- 12:16 PM AST 0.96 feet High Tide
Sun -- 12:48 PM AST 0.83 feet Low Tide
Sun -- 05:58 PM AST Sunset
Sun -- 08:17 PM AST Moonset
Sun -- 08:43 PM AST 0.86 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Playa de Ponce |
Click for Map
Sun -- 01:25 AM AST 0.26 feet Low Tide
Sun -- 06:22 AM AST Sunrise
Sun -- 08:39 AM AST Moonrise
Sun -- 10:41 AM AST 0.91 feet High Tide
Sun -- 05:59 PM AST Sunset
Sun -- 08:18 PM AST Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  Help
|Weather Map ||IR Satellite Image from GEOS|
GOES Local Image of Puerto Rico EDIT
Wind Forecast for (15,3,4,5)(on/off)  Help
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