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, Humacao 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 quiet corner of Humacao, breathes a humid, tropical air that clings to the skin like a second shirt. It lies 15.7 miles east-south-east of Caguas, PR (from Caguas, PR: bearing 110°T), and is situated 0.6 miles north-north-east of Humacao. The land here is a study in gentle slopes, a fertile cradle where emerald sugarcane fields and scattered groves of mango and breadfruit trees unfurl towards the distant, hazy blue of the Caribbean Sea. Small, brightly painted homes, some perched on stilts to catch the breeze, punctuate the landscape, their verandas often adorned with potted ferns and the vibrant hues of bougainvillea. The roads, narrow and winding, curve through this verdant expanse, carrying the occasional pickup truck laden with produce or the rumbling gait of a local bus, its windows often flung open to the warm, salt-tinged wind. The light at dusk is a revelation, bleeding from molten gold to a bruised purple across the western sky, casting long, dancing shadows that soften the edges of the day. This part of Humacao, San Antonio, carries the quiet echoes of a past shaped by agriculture and the sea. For generations, the rich soil yielded its bounty, primarily sugarcane, its cultivation a defining force in the island’s economy and the lives of its people. Traces of this heritage can still be found in the remnants of old plantation roads and the lingering scent of molasses that sometimes drifts on the breeze after a rain shower. Today, while agriculture remains a vital thread, the local economy has diversified, with many residents commuting to larger centers for work or finding opportunities in small businesses and tourism that skirts the edges of this tranquil locality. The nearby coastline, though not directly San Antonio's domain, influences the very rhythm of life, a constant, subtle reminder of the powerful ocean that cradles Puerto Rico, its tides and seasons shaping the island’s enduring spirit.
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, Humacao County, Puerto Rico |
| Coordinates | 18.15746°N, 65.822663°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 18.157460°N, 65.822663°W, situated in Humacao 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.
