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Las Piedras, Puerto Rico

Town in Las Piedras Municipio, Puerto Rico

Air quality

The air at Las Piedras

Index 32, good, led by fine particles. Read at 1 AM from its reporting area, Catano (PR), 25 miles off.

32Good
  • Fine particles (PM2.5)32Good24.7 mi

The days ahead

Yesterday measured 32, good.

On the radar over Las Piedras, Puerto RicoReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Las Piedras, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.9 miles away.

measured now3 instruments

CeibaTJRV

At an airfield/15.5 mi away/29 ft/397 ft below here

temp, wind, gust, visibility, precip, pressure

Rank-

CorozalS2188

At a soil climate station/33.7 mi away/852 ft/426 ft above here

temp, humidity, soil temp, soil moisture

Rank-

measured daily2 instruments

JuncosJNCP4

At a cooperative observer's station/4.1 mi away/213 ft/213 ft below here

snowfall, snow depth, precip, high, low

Rank10of 243

Station report

The weather at Juncos 1SE - RAWS, drawn

The nearest instrument reporting now, 4.2 mi from Las Piedras, Puerto Rico. From its report of Oct 16, 2026, 2:16 AM local time: 3 of its 5 sheets.

The air

77.0 F with a dew point of 75.4 F, 95 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 400 ft up.

Chart of the air at Juncos 1SE - RAWS: temperature 77.0 degrees Fahrenheit and dew point 75.4, 95 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 400 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JCOP4FIG. B THE AIR AT JUNCOS 1SE - RAWSTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00060 F70 F80 F90 FSATURATES 400 FT ABOVE THE STATION, AT 75.0 FTEMPERATURE AND DEW POINT 77.0 F, 75.4 FRELATIVE HUMIDITY 95 PER CENTTHE AIR COOLS ABOUT 5.4 F EACH 1,000 FT IT RISES, AND ITS DEW POINT ABOUT 1 FSOLID: THE LIFTED AIR'S TEMPERATURE; DASHED: ITS DEW POINTTITLEJuncos 1SE - RAWS, the airSTATION REPORT · DCP JCOP4TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-10-16IDSR-JCOP4-1DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the southwest (223 degrees) at 1 mph, gusting 4 mph: force 1, a light air on the Beaufort scale. The strongest gust today was 4 mph.

Plan of the wind at Juncos 1SE - RAWS, north up: blowing from 223 degrees, the southwest, at 1 miles an hour, gusting 4; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JCOP4FIG. C THE WIND AT JUNCOS 1SE - RAWSPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 223°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 1 MPH2LIGHT BREEZE4GUST, 4 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEJuncos 1SE - RAWS, the windSTATION REPORT · DCP JCOP4TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-10-16IDSR-JCOP4-2DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

The column

At 295 ft above sea level, 1 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.60 inHg and the temperature at 57.9 F; it reports 77.0 F, 19.1 F warmer than standard.

Section from sea level of where Juncos 1SE - RAWS stands in the atmosphere, height to scale: the station 295 feet above sea level with 1 per cent of the air below it; the standard atmosphere's pressure there, 29.60 inches of mercury, and temperature, 57.9 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JCOP4FIG. D WHERE JUNCOS 1SE - RAWS STANDS IN THE ATMOSPHERESECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHEREFT ABOVE SEA LEVEL05,00010,00015,000SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHEREJUNCOS 1SE - RAWS1 PER CENT OF THE AIR BELOW IT295 FT10 PER CENT OF THE AIR BELOW, 2,890 FT20 PER CENT OF THE AIR BELOW, 6,050 FT30 PER CENT OF THE AIR BELOW, 9,540 FT40 PER CENT OF THE AIR BELOW, 13,470 FTSTANDARD PRESSURE HERE29.60 inHgSTANDARD TEMPERATURE HERE57.9 FTEMPERATURE, REPORTED77.0 FTITLEJuncos 1SE - RAWS, the columnSTATION REPORT · DCP JCOP4TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-10-16IDSR-JCOP4-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The full report of Juncos 1SE - RAWS, in 5 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Near Las Piedras

The nearest places, each with its own forecast and the instruments nearest it.

Near Las Piedras

River and lake gauges