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: 9:20 pm AST May 6, 2021

Hazardous Weather Outlook
Overnight

Overnight: Isolated showers.  Partly cloudy, with a low around 76. East southeast wind 8 to 10 mph.  Chance of precipitation is 20%.
Isolated
Showers

Lo 76 °F
Friday

Friday: Isolated showers.  Mostly sunny, with a high near 90. East wind 11 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 20%.
Isolated
Showers

Hi 90 °F
Friday
Night
Friday Night: Isolated showers.  Partly cloudy, with a low around 75. East wind 6 to 11 mph becoming south southeast after midnight.  Chance of precipitation is 20%.
Isolated
Showers

Lo 75 °F
Saturday

Saturday: Scattered showers, mainly after noon.  Mostly sunny, with a high near 90. East wind 7 to 13 mph.  Chance of precipitation is 50%.
Isolated
Showers then
Scattered
Showers
Hi 90 °F
Saturday
Night
Saturday Night: Scattered showers.  Partly cloudy, with a low around 76. East southeast wind 9 to 11 mph.  Chance of precipitation is 30%.
Scattered
Showers

Lo 76 °F
Sunday

Sunday: Scattered showers, with thunderstorms also possible after noon.  Mostly sunny, with a high near 89. East wind 13 to 15 mph.  Chance of precipitation is 50%.
Scattered
Showers

Hi 89 °F
Sunday
Night
Sunday Night: Showers likely.  Mostly cloudy, with a low around 73. East wind around 10 mph.  Chance of precipitation is 70%.
Showers
Likely

Lo 73 °F
Monday

Monday: Showers likely.  Partly sunny, with a high near 86. East wind 11 to 14 mph.  Chance of precipitation is 60%.
Showers
Likely

Hi 86 °F
Monday
Night
Monday Night: Scattered showers.  Mostly cloudy, with a low around 74. East southeast wind around 11 mph.  Chance of precipitation is 40%.
Scattered
Showers

Lo 74 °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 062115
RWSPR
PRZ001>013-070915-

Weather Summary for Puerto Rico
National Weather Service San Juan PR
515 PM AST Thu May 6 2021

Mostly sunny skies prevailed during the early part of the day.
Afternoon showers and isolated thunderstorms developed across
parts of the central and west sections of Puerto Rico as well as
around the San Juan metro area. Heavy rains lead to urban and
small stream flooding in some areas where estimated rainfall
amounts were between 1 to 3 inches. Daytime high temperatures were
between the mid to upper 80s along coastal areas, and in the upper
70s to lower 80s in higher elevations. Winds were from the east
to northeast up to 15 mph with higher gusts and sea breeze
variations.

For the rest of the evening and overnight hours, skies will become
mostly clear to partly cloudy with only a few passing showers forecast
to cross the regional waters and reach the coastal areas of parts of
the islands from time to time. Overall mostly sunny and fair weather
skies can be expected on Friday with showers limited to mainly the
interior and west sections of Puerto Rico. The overnight low temperatures
are expected to be in the 60s across the higher elevations, and between
the low to mid 70s across the lower elevations.

Across the regional waters, seas of 5 feet or less are expected,
with winds up to 20 knots offshore. A moderate risk of rip currents
will continue for the north and southeast facing beaches of Puerto
Rico, most beaches of Culebra and Vieques overnight.

$$

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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