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Gray Whale Cove State Beach, California

Beach in San Mateo County, California

Air quality

The air at Gray Whale Cove State Beach

Index 54, moderate, led by fine particles. Read at 11 PM from its reporting area, San Francisco (CA), 14 miles off.

54Moderate
  • Fine particles (PM2.5)54Moderate-
  • Ozone14Good-

The days ahead

Highest moderate, Sat Oct 17, led by fine particles. Yesterday measured 43, good.

Smoke, the next 42 hours

Little smoke near the ground through Sat 5 PM: the index from smoke stays at 6 or under.

FriSat

Precipitation

What has fallen at Gray Whale Cove State Beach

None in the last 3 days, to Thu 11 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 Gray Whale Cove State Beach, the next 42 hours

Visibility stays 8 miles or more through Sat 5 PM, lowest 9 miles Sat 5 AM.

FriSat
Gray Whale Cove State Beach from its sand, nowLooking W from the sand at 12:21 AM, night, clear, waves about 5.5 ft every 9 s.250260W280Facing W 266°Wind 1 mphfrom W, onshoreSwell 5.5 ft from WSWLongshore current, to the right
Looking W from the sand at 12:21 AM, night, clear, waves about 5.5 ft every 9 s.
NESW

Facing W 266°

300 ft

From above: the edge, the break, the view

Surf and swim

The surf zone forecast for San Francisco and San Mateo County Coastal Areas, and the waves at buoy 46026, 21.9 mi away.

Friday

Surf height
4 to 7 feet
Water temperature
61 to 62 °F

Waves at buoy 46026, San Francisco

Wave height
3.9 ft
Period
-
From
WSW (246°)
Swell
3.9 ft at 16 s from WSW
Wind waves
1.0 ft at 3 s from WNW
Water
60 °F
Read
Thu 11:40 PM
Distance
21.9 mi

Wave height is the significant height: the mean of the highest third of the waves. The period is the time between the waves carrying the most energy.

Wave height at buoy 46026, last 48 hoursSignificant wave height from 3.6 ft to 5.6 ft; 3.9 ft at Thu 11:40 PM. Arrows show the way the waves travel.0 ft2 ft4 ft6 ft8 ft6 AMNoon6 PMThu6 AMNoon6 PM3.9 ftWave height at buoy 46026, last 48 hoursSignificant wave height from 3.6 ft to 5.6 ft; 3.9 ft at Thu 11:40 PM. Arrows show the way the waves travel.0 ft2 ft4 ft6 ft8 ftNoonThuNoon3.9 ft
Significant wave height from 3.6 ft to 5.6 ft; 3.9 ft at Thu 11:40 PM. Arrows show the way the waves travel.
Every hour, last 24 hours
TimeWave heightPeriodFrom
Thu 11:40 PM3.9 ft-WSW (246°)
Thu 10:50 PM4.3 ft15 sSW (219°)
Thu 9:50 PM3.6 ft14 sW (274°)
Thu 8:50 PM4.3 ft-WSW (241°)
Thu 7:50 PM3.6 ft13 sW (260°)
Thu 6:50 PM3.9 ft14 sSW (228°)
Thu 5:50 PM3.9 ft14 sWSW (248°)
Thu 4:50 PM3.9 ft15 sWSW (239°)
Thu 3:50 PM4.3 ft15 sWSW (243°)
Thu 2:50 PM3.9 ft15 sSW (230°)
Thu 1:50 PM3.9 ft15 sSW (221°)
Thu 12:50 PM3.9 ft15 sWSW (256°)
Thu 11:50 AM3.9 ft15 sSW (235°)
Thu 10:50 AM4.3 ft15 sWSW (239°)
Thu 9:50 AM3.9 ft14 sW (260°)
Thu 8:50 AM4.3 ft15 sSW (233°)
Thu 7:50 AM4.6 ft-WSW (245°)
Thu 6:50 AM4.3 ft14 sW (270°)
Thu 5:50 AM3.9 ft15 sW (263°)
Thu 4:50 AM3.9 ft-W (280°)
Thu 3:50 AM4.3 ft15 sWSW (252°)
Thu 2:50 AM4.6 ft14 sW (274°)
Thu 1:50 AM4.3 ft15 sW (276°)
Thu 12:50 AM4.3 ft-WNW (287°)

Surf zone forecast

San Francisco and San Mateo County Coastal Areas. Issued 11:26 PM PDT Thu Oct 15.

ForecastFridaySaturday
Surf height4 to 7 feet4 to 7 feet
Water temperature61 to 62 °F-
Thunderstorm potentialNone expectedNone expected
WeatherMostly sunnyPartly cloudy
High temperature63-9460-89
WindNW at 4 mphNW at 5 mph becoming NW at 8 mph
TidesHigh 4.2 ft, 5:32 AMLow 3.6 ft, 9:28 AMHigh 5.2 ft, 3:11 PMLow 0.5 ft, 10:32 PMHigh 4.2 ft, 6:48 AMLow 3.7 ft, 10:56 AMHigh 4.9 ft, 4:10 PMLow 0.6 ft, 11:38 PM

Tide

TideHigh 4.2 ft at Fri 5:32 AM, Low 3.6 ft at Fri 9:28 AM, High 5.2 ft at Fri 3:11 PM, Low 0.5 ft at Fri 10:32 PM, High 4.2 ft at Sat 6:48 AM, Low 3.7 ft at Sat 10:56 AM, High 4.9 ft at Sat 4:10 PM, Low 0.6 ft at Sat 11:38 PM. Heights in feet above mean lower low water.0 ft2 ft4 ft6 ft8 ft6 AMNoon6 PMSat6 AMNoon6 PMSun4.2 ft5:32 AM3.6 ft9:28 AM5.2 ft3:11 PM0.5 ft10:32 PM4.2 ft6:48 AM3.7 ft10:56 AM4.9 ft4:10 PM0.6 ft11:38 PMTideHigh 4.2 ft at Fri 5:32 AM, Low 3.6 ft at Fri 9:28 AM, High 5.2 ft at Fri 3:11 PM, Low 0.5 ft at Fri 10:32 PM, High 4.2 ft at Sat 6:48 AM, Low 3.7 ft at Sat 10:56 AM. Heights in feet above mean lower low water.0 ft2 ft4 ft6 ft8 ftNoonSat4.2 ft5:32 AM3.6 ft9:28 AM5.2 ft3:11 PM0.5 ft10:32 PM4.2 ft6:48 AM3.7 ft10:56 AM
Tide. High 4.2 ft at Fri 5:32 AM, Low 3.6 ft at Fri 9:28 AM, High 5.2 ft at Fri 3:11 PM, Low 0.5 ft at Fri 10:32 PM, High 4.2 ft at Sat 6:48 AM, Low 3.7 ft at Sat 10:56 AM, High 4.9 ft at Sat 4:10 PM, Low 0.6 ft at Sat 11:38 PM. Heights in feet above mean lower low water.

Beach

County
San Mateo County
State
California
Latitude
37.5649° N
Longitude
122.5137° W

What is measuring near here

The 5 instruments nearest Gray Whale Cove State Beach, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.7 miles away.

measured now3 instruments

Citizen station DW2059DW2059

In a volunteer observer's own ground/1.7 mi away/161 ft/- ft from here

temp, humidity, wind, precip, pressure

Half Moon BayHAF

At an airfield/3.6 mi away/31 ft/- ft from here

temp, wind, gust, visibility, precip, pressure

Spring Vly RAWSHSPC1

A remote fire weather station/4.2 mi away/1,030 ft/- ft from here

temp, wind, gust, humidity, pressure

measured daily2 instruments

Pacifica 2.1 SSWCA-SM-28

In a volunteer observer's own ground/1.9 mi away/86 ft/- ft from here

precip, snowfall, snow depth

Half Moon BayHMBC1

At a cooperative observer's station/7.5 mi away/23 ft/- ft from here

snowfall, snow depth, precip, high, low

-

Snow on the ground

Elsewhere in California

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