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: 4:41 am AST May 19, 2022

Hazardous Weather Outlook
This
Afternoon
This Afternoon: Isolated showers before 3pm.  Widespread haze. Sunny, with a high near 91. East wind around 16 mph, with gusts as high as 21 mph.  Chance of precipitation is 10%.
Isolated
Showers
Hi 91 °F
Tonight

Tonight: Widespread haze. Clear, with a low around 78. East wind 7 to 9 mph.
Haze
Lo 78 °F
Friday

Friday: Widespread haze. Sunny, with a high near 89. East wind 10 to 17 mph, with gusts as high as 22 mph.
Haze
Hi 89 °F
Friday
Night
Friday Night: Widespread haze. Mostly clear, with a low around 76. East wind 7 to 9 mph.
Haze
Lo 76 °F
Saturday

Saturday: Isolated showers.  Widespread haze. Sunny, with a high near 89. East wind 9 to 16 mph, with gusts as high as 21 mph.  Chance of precipitation is 10%.
Isolated
Showers
Hi 89 °F
Saturday
Night
Saturday Night: Isolated showers.  Widespread haze. Mostly clear, with a low around 76. East wind 7 to 10 mph.  Chance of precipitation is 10%.
Isolated
Showers
Lo 76 °F
Sunday

Sunday: Widespread haze before noon. Mostly sunny, with a high near 88. East northeast wind 9 to 17 mph, with gusts as high as 22 mph.
Haze then
Mostly Sunny
Hi 88 °F
Sunday
Night
Sunday Night: Scattered showers.  Mostly cloudy, with a low around 76. East wind 7 to 10 mph.  Chance of precipitation is 50%.
Scattered
Showers
Lo 76 °F
Monday

Monday: Scattered showers.  Partly sunny, with a high near 87. East northeast wind 8 to 14 mph.  Chance of precipitation is 40%.
Scattered
Showers
Hi 87 °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 191345 CCA
RWSPR
PRZ001>013-192115-

Weather Summary for Puerto Rico...CORRECTED
National Weather Service San Juan PR
945 AM AST Thu May 19 2022

Cloudy skies were observed across Culebra, Vieques and the
eastern third of Puerto Rico, during the nighttime hours. A few
isolated showers were noted just east of Puerto Rico, but no
rainfall accumulations were reported. Overnight temperatures in
general were from the mid 70s to low 80s across the lower
elevations to the upper 60s across the higher elevations. Winds
were from the east up to 10 mph.

For today, a drier airmass with a Saharan Air Layer (SAL) will
continue to filter across the region through the weekend. This
will continue to result in hazy skies and will limit the rainfall
activity across most of the local islands. However, a few quick
showers might develop over the western sections of Puerto Rico in
the afternoon hours. Maximum temperatures are forecast to range
between the upper 80s to low 90s across coastal areas to the low
70s across the higher elevations. A heat advisory with heat
indices around 108 degrees was issued for the north-central
municipalities until 4 PM this afternoon. Winds will continue from
the east-southeast at around 15 mph with sea breeze variations
and higher wind gusts near the coastal sections.

Today, seas will remain up to 4 feet with winds up to 15 knots
across most of the local waters. Over the offshore Atlantic
waters, winds will increase slightly up to 20 knots, turning
conditions choppy in a few isolated spots. There is a moderate
risk of rip current across all the local beaches.

$$

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