San Antonio, Puerto Rico Weather
San Antonio, Puerto Rico — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, soil and crop conditions for San Antonio, Arroyo County.
Flight conditions near San Antonio. Data source: locating…
Soil conditions, frost risk and crop weather for San Antonio.
About San Antonio, Puerto Rico
San Antonio, a cluster of homes and small businesses, unfolds across the undulating terrain of Arroyo Municipality. It lies 18.3 miles south of Caguas, PR (from Caguas, PR: bearing 182°T), and is situated 3.7 miles east-south-east of Guayama. The land here is a study in greens, from the deep, almost bruised hue of the mature banana plants to the vibrant, sun-kissed shoots of new sugarcane. Rolling hills, softened by the constant caress of the Caribbean breeze, frame the settlement, their slopes patched with small homesteads and the occasional larger parcel dedicated to cultivation. The air itself carries a humid sweetness, a blend of blooming hibiscus and the rich, earthy scent of soil that has known generations of tending. Even in the midday heat, a certain languid grace pervades the scene, the shadows lengthening slowly from the sturdy, brightly painted houses, their verandas offering a welcome respite from the persistent warmth. The history of San Antonio is inextricably linked to the agricultural cycles that have long defined this part of Puerto Rico. Sugarcane, once the undisputed king, still carpets many of the surrounding fields, its tall stalks whispering secrets to the wind. The legacy of these plantations, though diminished, is etched into the landscape, in the remnants of old processing facilities and the enduring spirit of resilience in its people. Today, while agriculture remains a vital thread, the local economy has diversified, with many residents finding work in nearby towns or contributing to the growing tourism sector that draws visitors to the island's natural beauty. San Antonio itself possesses a quiet character, a place where the rhythm of life is dictated less by the clock and more by the arc of the sun and the needs of the land, a steadfast corner of the island where tradition and the present moment coexist.
Live animated radar for San Antonio and surroundings — RainViewer.
NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.
Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload
| Location | San Antonio, Arroyo County, Puerto Rico |
| Coordinates | 17.969689°N, 66.058776°W |
| Timezone | Atlantic Standard Time — no DST (America/Puerto_Rico) |
| ZIP Code(s) | 00603 |
| Area Code | 787, 939 |
| Page generated | July 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This San Antonio, Puerto Rico Weather Page
This page provides live weather conditions and forecasts for San Antonio, Puerto Rico, including current conditions, a 24-hour hourly forecast, 7-day outlook, NWS extended text forecast, real-time aviation weather (live METAR and TAF reports from the nearest reporting airport, with a modeled estimate shown when no station is in range), precipitation radar and NOAA GOES-16 satellite imagery. Additional sections may include tide predictions, wave height, wave direction and sea-surface temperature, a barometric pressure trend, and a solunar-based fishing forecast with a fishing-conditions rating for coastal localities, and soil temperature, crop weather and live USGS river gauge data for agricultural areas near a monitored waterway. All data updates automatically on every page visit.
Location data for San Antonio includes coordinates 17.969689°N, 66.058776°W, situated in Arroyo County. ZIP code 00603. Telephone area code: 787, 939. Timezone: Atlantic Standard Time — no DST (America/Puerto_Rico).
Weather data is sourced from the NOAA National Weather Service (NWS) and the open-source Open-Meteo API. Aviation data is sourced from aviationweather.gov (NOAA), with a modeled estimate used where no nearby reporting station is available. River and stream data is sourced from the USGS National Water Information System. Tide predictions are sourced from NOAA CO-OPS; marine and solunar data are modeled from Open-Meteo and public sunrise/moon calculations and should be treated as a general guide alongside on-the-water conditions. Radar is provided by RainViewer. Satellite imagery is sourced from NOAA/NESDIS GOES-East and is public domain.
