Since 2001 providing the latest information on tropical cyclone activity in the Atlantic Basin and the weather conditions in Puerto Rico.

Local Weather Conditions

 

National Weather Service Today's Weather Impact Levels

National Weather Service Forecast for: San Juan, Puerto Rico  

Updated: 10:10 am AST Aug 7, 2020

Hazardous Weather Outlook
This
Afternoon
This Afternoon: Scattered showers.  Mostly sunny, with a high near 91. East wind around 14 mph.  Chance of precipitation is 30%.
Scattered
Showers
Hi 91 °F
Tonight

Tonight: Scattered showers before midnight, then isolated showers after 3am.  Partly cloudy, with a low around 77. East wind around 11 mph.  Chance of precipitation is 30%.
Scattered
Showers
Lo 77 °F
Saturday

Saturday: Scattered showers, mainly before 9am.  Widespread haze after 9am. Mostly sunny, with a high near 90. East wind 15 to 17 mph, with gusts as high as 23 mph.  Chance of precipitation is 30%.
Scattered
Showers
Hi 90 °F
Saturday
Night
Saturday Night: Isolated showers.  Widespread haze. Mostly clear, with a low around 78. East wind 11 to 13 mph.  Chance of precipitation is 10%.
Isolated
Showers
Lo 78 °F
Sunday

Sunday: Isolated showers.  Widespread haze before noon. Sunny, with a high near 91. East wind 11 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 10%.
Isolated
Showers
Hi 91 °F
Sunday
Night
Sunday Night: Scattered showers, mainly after midnight.  Partly cloudy, with a low around 77. East wind around 10 mph.  Chance of precipitation is 40%.
Scattered
Showers
Lo 77 °F
Monday

Monday: Mostly sunny, with a high near 88. East wind 9 to 13 mph.
Mostly Sunny
Hi 88 °F
Monday
Night
Monday Night: Partly cloudy, with a low around 77. East wind 9 to 11 mph.
Partly Cloudy
Lo 77 °F
Tuesday

Tuesday: Mostly sunny, with a high near 88. East wind 9 to 15 mph.
Mostly Sunny
Hi 88 °F

National Weather Service Forecast Details

 

GRLevel3 radar images are not available at this time.

Day 1 rainfall

Day 2 rainfall

Day 3 rainfall

000
AWCA82 TJSJ 070857
RWSPR
PRZ001>013-072100-

Weather Summary for Puerto Rico
National Weather Service San Juan PR
457 AM AST Fri Aug 7 2020

A few showers moved across the local waters, some of them moved
across the east third portion of Puerto Rico. Elsewhere, mostly
clear skies with pleasant weather. Minimum temperatures ranged
from the upper 70s to low 80s along the coastal areas to the
upper 60s to low 70s in the mountain areas. Winds were calm to
light and variable.

Subsidence ahead of an approaching tropical wave will limit shower
activity across the islands throughout the morning hours. The
tropical wave will move into the area spreading moisture, clouds
and showers with scattered thunderstorms across the island by
early this afternoon into the evening. Urban and small stream
flooding is likely in portions of the east, northwest and central
portions of the island. These showers will be enhanced by an
upper level trough and better available moisture. Periods of
moderate to heavy showers across the San Juan Metro area are also
expected. Maximum temperatures will range from the low 90s in the
lower elevations to the upper 70s in the highest mountains. Winds
will be east-southeast at 10 to 20 mph.

Across the local waters, seas between 2 to 5 feet with winds up to
20 knots are expected over the Atlantic and Caribbean waters.
There will be a moderate rip current risk for some beaches across
the northwest and southeast coast as well as across Culebra.

$$

This product is issued around 5 AM and 5 PM each day and weather
conditions may change between issuances. Please verify the status
of any Watches...Warnings or Advisories mentioned in this product.

NWS SJU Office Area Forecast Discussion

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Wind Shear Tendency

Sea Surface Temperatures

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NOAA Sea Surface Temperatures Anomalies