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: 8:28 pm AST Oct 30, 2020

Hazardous Weather Outlook
Tonight

Tonight: Scattered showers, mainly between midnight and 3am.  Partly cloudy, with a low around 76. East southeast wind around 14 mph.  Chance of precipitation is 30%.
Scattered
Showers
Lo 76 °F
Saturday

Saturday: Isolated showers.  Mostly sunny, with a high near 89. East wind 14 to 18 mph, with gusts as high as 23 mph.  Chance of precipitation is 20%.
Isolated
Showers
Hi 89 °F
Saturday
Night
Saturday Night: Isolated showers.  Partly cloudy, with a low around 76. East wind 11 to 14 mph.  Chance of precipitation is 20%.
Isolated
Showers
Lo 76 °F
Sunday

Sunday: Isolated showers.  Mostly sunny, with a high near 89. East wind 11 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 20%.
Isolated
Showers
Hi 89 °F
Sunday
Night
Sunday Night: Scattered showers and thunderstorms.  Mostly cloudy, with a low around 75. East wind around 11 mph.  Chance of precipitation is 40%.
Scattered
Showers
Lo 75 °F
Monday

Monday: Scattered showers, mainly after noon.  Mostly sunny, with a high near 88. East southeast wind around 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 30%.
Scattered
Showers
Hi 88 °F
Monday
Night
Monday Night: Partly cloudy, with a low around 75. Southeast wind around 8 mph.
Partly Cloudy
Lo 75 °F
Tuesday

Tuesday: Mostly sunny, with a high near 89. East wind 9 to 13 mph.
Mostly Sunny
Hi 89 °F
Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 76. East southeast wind around 9 mph.
Partly Cloudy
Lo 76 °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 302120
RWSPR
PRZ001>013-310930-

Weather Summary for Puerto Rico
National Weather Service San Juan PR
520 PM AST Fri Oct 30 2020

Scattered to locally numerous showers were observed across
eastern, western, and southern Puerto Rico today. The highest
amounts of rain were observed across western Puerto Rico, where
an inch and a half of rain was estimated by the Doppler Radar;
while eastern and southern Puerto Rico observed generally from a
quarter of an inch to an inch of rain. Northern Puerto Rico
observed little to no rain. The daytime high temperatures were in
the mid 80s to low 90s across the lower elevations, and in the
upper 70s to low 80s across the higher elevations. The wind
prevailed from the east at around 15 to 20 mph across the coastal
areas.

Drier air is moving in, and the shower activity is expected to
diminish significantly overnight over land, but numerous showers
and isolated thunderstorms are expected over the Caribbean waters.
The overnight low temperatures are expected to be in the mid to
upper 70s across the lower elevations, and in the mid 60s to low
70s across the higher elevations. The wind will remain from the
east at around 15 mph across the coastal areas.

Seas are forecast to be 7 to 8 feet tonight into Saturday across
most of the local waters, and therefore Small Craft Advisories are
in effect, and will continue in effect through the weekend. Winds
tonight will be 15 to 20 knots, slightly higher at times. A high
risk of rip currents will continue for most northern beaches of
Puerto Rico tonight, gradually becoming moderate through Sunday.

$$

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

Sea Surface Temperatures Anomalies

Global Sea Surface Temperatures Anomalies