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: 5:23 pm AST Oct 19, 2020

Hazardous Weather Outlook
Rip Current Statement
Tonight

Tonight: Isolated showers.  Partly cloudy, with a low around 77. North wind around 5 mph becoming light and variable.  Chance of precipitation is 10%.
Isolated
Showers
Lo 77 °F
Tuesday

Tuesday: Scattered showers, mainly after 4pm.  Mostly sunny, with a high near 88. Light and variable wind becoming north 5 to 7 mph in the afternoon.  Chance of precipitation is 30%.
Scattered
Showers
Hi 88 °F
Tuesday
Night
Tuesday Night: Scattered showers, mainly before 7pm.  Partly cloudy, with a low around 77. Light and variable wind.  Chance of precipitation is 30%.
Scattered
Showers
Lo 77 °F
Wednesday

Wednesday: Isolated showers after 1pm.  Mostly sunny, with a high near 87. Calm wind becoming east around 5 mph in the afternoon.  Chance of precipitation is 10%.
Sunny then
Isolated
Showers
Hi 87 °F
Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 76. Light southeast wind.
Partly Cloudy

Lo 76 °F
Thursday

Thursday: Scattered showers, with thunderstorms also possible after 1pm.  Partly sunny, with a high near 90. Light south southeast wind becoming east southeast 5 to 9 mph in the morning.  Chance of precipitation is 50%.
Scattered
Showers
Hi 90 °F
Thursday
Night
Thursday Night: Partly cloudy, with a low around 76. South southeast wind around 7 mph.
Partly Cloudy

Lo 76 °F
Friday

Friday: Mostly sunny, with a high near 92. East southeast wind 6 to 11 mph.
Mostly Sunny

Hi 92 °F
Friday
Night
Friday Night: Scattered showers.  Partly cloudy, with a low around 78. East southeast wind around 8 mph.  Chance of precipitation is 50%.
Scattered
Showers
Lo 78 °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 192029
RWSPR
PRZ001>013-200830-

Weather Summary for Puerto Rico
National Weather Service San Juan PR
429 PM AST Mon Oct 19 2020

Mostly sunny skies prevailed across the region today, with only a
few isolated showers developing over southern Puerto Rico. Winds
were generally from the north to northwest around 5-10 mph.
Daytime high temperatures peaked in the upper 80s to lower 90s for
the coastal regions.

A drier air mass will continue to move in tonight, resulting in
fair weather conditions. Overnight low temperatures are forecast
to drop into the mid to upper 70s for the coastal regions, and low
to mid 70s for the mountains. Winds will become light and
variable overnight, and from the west to northwest at 5-10 mph
during the day.

Tranquil marine conditions with seas below 5 feet and winds at 5
to 10 knots are expected tonight, with a moderate risk of rip
currents for the north PR coast. Conditions will gradually
deteriorate tomorrow due to a northerly swell generated by
Tropical Storm Epsilon, located to our northeast over the central
Atlantic. Expect hazardous seas, a high risk of rip currents,
high surf, and possibly even minor coastal flooding.

$$

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

NOAA Sea Surface Temperatures Anomalies