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: 8:10 pm AST Oct 19, 2020

Hazardous Weather Outlook
Rip Current Statement

Tonight: Isolated showers.  Partly cloudy, with a low around 77. North wind around 5 mph becoming light and variable.  Chance of precipitation is 20%.
Lo 77 °F

Tuesday: Scattered showers, mainly after 3pm.  Mostly sunny, with a high near 88. Light and variable wind becoming north 5 to 7 mph in the morning.  Chance of precipitation is 30%.
Hi 88 °F
Tuesday Night: Isolated showers.  Partly cloudy, with a low around 77. Light and variable wind.  Chance of precipitation is 10%.
Lo 77 °F

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

Lo 76 °F

Thursday: Scattered showers, with thunderstorms also possible after noon.  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%.
Hi 90 °F
Thursday Night: Partly cloudy, with a low around 76. South southeast wind around 6 mph.
Partly Cloudy

Lo 76 °F

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

Hi 92 °F
Friday Night: Scattered showers.  Partly cloudy, with a low around 78. Southeast wind 7 to 9 mph.  Chance of precipitation is 50%.
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

AWCA82 TJSJ 192029

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

Saharan Air Layer

Wind Shear Tendency

Sea Surface Temperatures

Sea Surface Temperatures Anomalies

NOAA Sea Surface Temperatures Anomalies