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: 9:59 pm AST Jun 5, 2020

Hazardous Weather Outlook
Tonight

Tonight: Scattered showers, mainly after 4am.  Partly cloudy, with a low around 77. East wind 10 to 13 mph.  Chance of precipitation is 30%.
Scattered
Showers

Lo 77 °F
Saturday

Saturday: Scattered showers, mainly before 10am.  Mostly sunny, with a high near 89. East northeast wind 13 to 17 mph, with gusts as high as 22 mph.  Chance of precipitation is 40%.
Scattered
Showers then
Isolated
Showers
Hi 89 °F
Saturday
Night
Saturday Night: Isolated showers.  Partly cloudy, with a low around 77. East wind 9 to 14 mph.  Chance of precipitation is 20%.
Isolated
Showers

Lo 77 °F
Sunday

Sunday: Isolated showers.  Mostly sunny, with a high near 91. East wind 9 to 14 mph.  Chance of precipitation is 20%.
Isolated
Showers

Hi 91 °F
Sunday
Night
Sunday Night: Isolated showers.  Partly cloudy, with a low around 78. East wind 8 to 11 mph.  Chance of precipitation is 10%.
Isolated
Showers

Lo 78 °F
Monday

Monday: Isolated showers, then scattered showers and thunderstorms after 1pm.  Partly sunny, with a high near 90. East wind around 8 mph.  Chance of precipitation is 50%.
Isolated
Showers then
Scattered
Showers
Hi 90 °F
Monday
Night
Monday Night: Scattered showers.  Mostly cloudy, with a low around 76. East wind 5 to 8 mph becoming south after midnight.  Chance of precipitation is 30%.
Scattered
Showers

Lo 76 °F
Tuesday

Tuesday: Scattered showers.  Partly sunny, with a high near 90. Light and variable wind.  Chance of precipitation is 50%.
Scattered
Showers

Hi 90 °F
Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 78. South wind around 6 mph.
Partly Cloudy

Lo 78 °F

National Weather Service Forecast Details

 

GRLevel3 Radar

  [10/10
GRLevel3 radar from NWS station TJUA

Day 1 rainfall

Day 2 rainfall

Day 3 rainfall

000
AWCA82 TJSJ 052000
RWSPR
PRZ001>013-060800-

Weather Summary for Puerto Rico
National Weather Service San Juan PR
400 PM AST Fri Jun 5 2020

Mostly clear to partly cloudy skies prevailed across Puerto Rico
today. Some brief showers affected portions of eastern Puerto Rico
in the morning. Then, showers develop across the interior and
western sectors, as well as from the local islands into eastern
sectors in the afternoon. However, significant rainfall
accumulations have not been observed with this activity. Daytime
high temperatures peaked in the upper 80s to lower 90s across
lower elevations, while lower temperatures were reported across
higher elevations. Winds were generally from the east at 15-20 mph
with higher gusts and sea breeze variations, but slightly higher
along the coast. In fact, a high temperature of 90 degree
Fahrenheit and a maximum sustained wind of 25 mph with a peak wind
gust of 31 mph were reported at the Luis Munoz Marin
International Airport today.

Mainly fair weather conditions are expected to prevail during the
overnight and early morning hours. However, passing showers may
move over portions of eastern sectors from time-to-time. Then,
local effects and diurnal heating will support shower and isolated
thunderstorm development across the interior and western sectors
in the afternoon. Overnight low temperatures are forecast to drop
into the mid to upper 70s, while daytime high temperatures are
expected to peak once again into the upper 80s to lower 90s across
coastal areas on Saturday. Winds will continue from the east at
5-15 mph overnight, increasing once again to 15-20 mph during the
day.

Across the regional waters, choppy seas up to 6 feet with winds
up to 20 knots are expected. The highest seas are expected across
the offshore waters and local passages. Thus, small craft
operators are urged to exercise caution across these waters. There
is a moderate risk of rip currents across most of the local
beaches, including the beaches of Vieques and 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

Saharan Air Layer

Wind Shear Tendency

Sea Surface Temperatures

Sea Surface Temperatures Anomalies

NOAA Sea Surface Temperatures Anomalies