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Carlsbad, California

City in San Diego County, California

Air quality

The air at Carlsbad

Index 51, moderate, led by coarse particles. Read at 9 PM from its reporting area, San Diego Coast (CA), 21 miles off.

51Moderate
  • Fine particles (PM2.5)37Good9.5 mi
  • Ozone37Good39 ppb9.5 mi
  • Coarse particles (PM10)51Moderate9.5 mi

The days ahead

Highest 51, moderate, Sat Oct 17, led by ozone. Yesterday measured 48, good.

Smoke, the next 45 hours

Smoke near the ground peaks at index 129, unhealthy for sensitive groups, Fri 9 PM.

SatSun

Precipitation

What has fallen at Carlsbad

None in the last 3 days, to Fri 8 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.00in

Visibility

How far you can see at Carlsbad, the next 45 hours

Visibility stays 10 miles or more through Sun 5 PM.

SatSun

On the radar over Carlsbad, CaliforniaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Carlsbad, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.9 miles away.

measured now4 instruments

measured daily2 instruments

Carlsbad 1.4 SECA-SD-170

In a volunteer observer's own ground/0.9 mi away/274 ft/19 ft below here

precip, snowfall, snow depth

Rank-

Vista 2 NNEVSTC1

At a cooperative observer's station/8.5 mi away/531 ft/238 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Carlsbad/Palomar, drawn

The nearest airport reporting now, 1.0 mi from Carlsbad, California. From its report of Oct 16, 2026, 8:53 PM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 10 mi or more.

Section of the sky over Carlsbad/Palomar, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CRQFIG. A THE SKY OVER CARLSBAD/PALOMARSECTION, HEIGHT ABOVE THE STATION TO SCALE, EACH LAYER AT THE HEIGHT OF ITS BASE AS REPORTED; COVER IN EIGHTHS OF THE SKY; TOPS NOT MEASUREDFT ABOVE THE STATION05001,0001,5002,0002,5003,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETNO CLOUD DETECTED BELOW 12,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLECarlsbad/Palomar, the skySTATION REPORT · ASOS CRQTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-CRQ-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

87.0 F with a dew point of 41.0 F, 20 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 10,400 ft up.

Chart of the air at Carlsbad/Palomar: temperature 87.0 degrees Fahrenheit and dew point 41.0, 20 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 10,400 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CRQFIG. B THE AIR AT CARLSBAD/PALOMARTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION02,0004,0006,0008,00010,00012,00020 F40 F60 F80 F100 FSATURATES 10,400 FT ABOVE THE STATION, AT 31.5 FTEMPERATURE 87.0 FDEW POINT 41.0 FSPREAD 46.0 FRELATIVE HUMIDITY 20 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 POINTTITLECarlsbad/Palomar, the airSTATION REPORT · ASOS CRQTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-CRQ-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the east northeast (70 degrees) at 17 mph, gusting 35 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 35 mph.

Plan of the wind at Carlsbad/Palomar, north up: blowing from 70 degrees, the east northeast, at 17 miles an hour, gusting 35; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CRQFIG. C THE WIND AT CARLSBAD/PALOMARPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 70°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 17 MPH5FRESH BREEZE196STRONG BREEZE257NEAR GALE32GUST, 35 MPH8GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECarlsbad/Palomar, the windSTATION REPORT · ASOS CRQTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-CRQ-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Carlsbad/Palomar, in 6 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in California

33 places, each with its own forecast and its own instruments.

Near Carlsbad

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

Near Carlsbad

River and lake gauges