Saturday Will Be Partly Cloudy, Isolated Showers, Hazy, Breezy, 88°F – EXCESSIVE HEAT –
Updated 6/12/26 at 2:09 p.m. AST
Weather updates are posted by Jesse Daley, who has been reporting on weather for the Source since 2022 and holds an Undergraduate Certificate in Weather Forecasting from Pennsylvania State University.
VI SOURCE WEATHER UPDATES
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! VI Source article: 2026 Atlantic Hurricane Season Officially Begins as Forecasters Urge Continued Preparedness
SATURDAY’S WEATHER FORECAST: 6/13/26
Happy Saturday!
According to the National Weather Service (NWS), the weather in San Juan, Puerto Rico, on Saturday is forecast to be partly cloudy, hazy due to Saharan dust, and with a chance of isolated showers. The temperature is forecast to rise to around 88°F (31.1°C), and the heat index is expected to be high. Winds will be gusty, coming from the east, at approximately 20 to 22 mph, with gusts reaching 28 mph. The chance of rain on Saturday is 10%.
For Saturday night, conditions are expected to be mostly clear, and isolated showers are possible. The low temperature is forecast to fall to about 79°F (26.1°C). Winds will be gusty, coming from the east, at approximately 17 to 22 mph, with gusts reaching 28 mph. The chance of rain on Saturday night is 10%.
“Hot heat index values will prevail from Friday onward, especially across urban, coastal, and lower-elevation areas. Saharan dust particles will generate hazy skies, and trace concentrations are expected to persist through the weekend. Increasing winds through the weekend will slightly deteriorate beach conditions,” the NWS said.
Yellow = Limited Risk Orange = Elevated Risk Red = Significant Risk
Yellow = Limited Risk Orange = Elevated Risk Red = Significant Risk
Below: Infrared satellite imagery obtained at 1:40 p.m. AST on Friday indicates a partly cloudy sky across the USVI. Precipitation is possible.
MARINE WEATHER UPDATE
National Weather Service forecasters report that wave heights on Saturday are expected to build from between 3 and 6 feet.
The NWS provided the following details:
“Through at least Friday night, up to moderate east to east-southeast winds and seas of 2 to 4 feet will prevail across the regional waters. However, a surface high over the Atlantic will continue to strengthen on Saturday. This will support fresh trades and more choppy seas Saturday through at least next midweek. Seas are forecast to build to 4 to 6 feet, occasionally higher, across the regional waters and local passages. This will result in Small Craft Should Exercise Caution conditions. Drier air behind yesterday’s tropical wave, along with Saharan Dust concentrations, will promote more stable conditions. However, groups of showers will continue to be steered by the winds towards the local waters,” the NWS explained.
Yellow = Limited Risk Orange = Elevated Risk Red = Significant Risk
The water temperature is approximately 84°F, roughly 28-29°C.
NOAA Ocean Water Temperature Map: 6/12/26:
Risk of Rip Currents:
The NWS explained that the risk of rip currents is projected to be moderate across the USVI on Saturday.
The NWS provided the following details:
“The moderate risk of rip currents will spread on Friday night to other north-oriented beaches. Breezy to locally windy conditions will then result in a moderate risk of rip currents for most of the local beaches of Puerto Rico and the USVI, Saturday through at least the next midweek. Beachgoers should exercise caution, always swim near a lifeguard, and remember to heed the advice of the local beach patrol and flag warning systems. Other hazards include limited to elevated heat risks, Saharan dust concentrations filtering over the region, and breezy E to ESE winds (unsecured items could blow around),” the NWS said.
Clear = Low Rip Current Risk Yellow = Moderate Rip Current Risk Red = High Rip Current Risk
The NWS reminds swimmers that even when there is a lower risk of rip currents, they “can still form near structures like groins, jetties, reefs, and piers.” More information is available here.
Swimmers are encouraged to exercise caution and understand how to escape the pull of a dangerous rip current.
TROPIC WATCH
Tropical Activity:
The 2026 Atlantic hurricane season began on June 1, 2026, and will run until Nov. 30.
The National Hurricane Center is monitoring an area near the Gulf with a low chance of cyclonic development. The Pacific region is currently experiencing tropical activity.
VI Source article: NOAA Outlook Calls for Below-Normal Atlantic Hurricane Season, But Preparedness Remains Critical
VI Source article covering AccuWeather’s 2026 Atlantic hurricane season forecast is available here!
Additionally, a VI Source article covering Colorado State University’s 2026 Atlantic hurricane season forecast is available here!
Super Typhoon Sinlaku recently caused extreme damage to the U.S. territories of Guam and the Northern Mariana Islands. Read more and learn how to help in a VI Source article here.
OBSERVATIONS
Sunrise: 5:44 a.m.
Sunset: 6:57 p.m.
Preparation for extreme weather events in the Caribbean, such as earthquakes and tropical cyclones, is important. Residents and visitors in the USVI are encouraged to stay updated on weather events on the V.I. Source Weather page and sign up for alerts from the National Weather Service and the Virgin Islands Territorial Emergency Management Agency.
Article Series: “Extreme Weather in the Caribbean”
- Part 1: Caribbean Earthquakes and Tsunamis
- Part 2: Caribbean Volcanoes
- Part 3: Rip Currents
- Part 4: Hurricanes
- Part 5: Wildfires
- Part 6: Flash Floods
- Additional articles about earthquakes in the Caribbean are available here and here!
- From Calm to Catastrophic: The Threat of Rapid Hurricane Intensification
- Three Decades After Marilyn, Forecasting and Emergency Preparedness Have Evolved in the USVI
- Please remain prepared for earthquakes and flash flooding across the USVI.
- Three Decades After Marilyn, Forecasting and Emergency Preparedness Have Evolved in the USVI
An on-camera interview between Source weather reporter Jesse Daley and Daryl Jaschen, the director of VITEMA, is available here!
