Coastal Flood Advisory
Starts in 1 day 8 h
When
From 5 AM Sunday to 1 PM PDT Thursday.
Where
San Luis Obispo County Beaches, Santa Barbara County Central Coast Beaches, Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast, Ventura County Beaches, Malibu Coast and Los Angeles County Beaches.
Issued for this forecast zone · National Weather Service Los Angeles/Oxnard CA
What, impacts and precautionsHide details
What
Minor to moderate coastal flooding expected due to very high tides.
Impacts
Minor to moderate flooding of sea water is likely over vulnerable low-lying coastal areas, especially around the time of high tide, including over beach parking lots, bike paths, and harbor walkways. Moderate to significant beach erosion is likely. Isolated damage of structures due to sea water inundation is possible.
Additional details
High tides will likely reach 7.5-8.0 feet (around 1.1 to 1.5 feet above astronomical projections) Sunday- Thursday, peaking Monday-Wednesday. High tides will peak in the morning hours. There is a small chance for isolated Coastal Flood Warnings (highest chances Wednesday-Thursday) if larger surf develops.
Precautionary actions
Take the necessary actions to protect flood-prone property. Do NOT drive around barricades or through water of unknown depth.
Areas: San Luis Obispo County Beaches; Santa Barbara County Central Coast Beaches; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast; Ventura County Beaches; Malibu Coast; Los Angeles County Beaches
See it on weather.gov (opens in a new tab)

Observed 8:45 PM PDT at KSBP

Grover Beach, CA weather

Clear and 63°17°, 9°5° colder than a typical Oct 23.

Forecasts agree

Now 63°17°

Clear

Wind: 3 mph5 km/h; From the south. 35–10 mph16 km/h through 9 AM
Dew point: 55°13°; A little sticky
UV tomorrow: 5Moderate; Moderate 11 AM–5 PM · peak 5
Air quality: 46Good; Main pollutant: PM2.5 (fine particles)
Pressure: 29.99 inHg1016 hPa; Rising slowly · +0.04 inHg+1.2 hPa in 3 h

None rain now, through the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Low 54°12° tonight at 5 AM
High 68°20° tomorrow at noon
Below 60°16° tomorrow night after 7 PM

TonightDown to 54°12° by 5 AM · Clear
Tomorrow morningUp to 67°19° by 11 AM · Clear
Tomorrow afternoonNear 67°19° · Clear
Tomorrow nightDown to 52°11° by 4 AM · Clear
Sunday morningUp to 66°19° by 11 AM · Partly cloudy
Sunday afternoonNear 66°19° · Partly cloudy
Sunday nightNear 63°17° · Partly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Fri 9p	Clear	60°16° (likely 56°13° to 62°17°)	60°16°	0%	10 mph16 km/h from N, gusts 7 mph12 km/h	80%	1%	0
Fri 10p	Clear	60°16° (likely 55°13° to 61°16°)	60°16°	0%	10 mph16 km/h from N, gusts 7 mph11 km/h	75%	0%	0
Fri 11p	Clear	60°16° (likely 54°12° to 60°16°)	60°16°	0%	10 mph16 km/h from N, gusts 8 mph12 km/h	77%	0%	0
Sat 12a	Clear	58°14° (likely 54°12° to 60°16°)	58°14°	0%	10 mph16 km/h from N, gusts 7 mph11 km/h	80%	0%	0
Sat 1a	Clear	58°14° (likely 53°12° to 60°16°)	58°14°	0%	10 mph16 km/h from N, gusts 7 mph11 km/h	86%	0%	0
Sat 2a	Clear	57°14° (likely 53°12° to 59°15°)	57°14°	0%	10 mph16 km/h from NNE, gusts 8 mph12 km/h	89%	0%	0
Sat 3a	Clear	57°14° (likely 53°12° to 59°15°)	57°14°	0%	10 mph16 km/h from NNE, gusts 9 mph15 km/h	89%	0%	0
Sat 4a	Clear	55°13° (likely 53°12° to 59°15°)	55°13°	0%	10 mph16 km/h from NNE, gusts 10 mph17 km/h	97%	0%	0
Sat 5a	Clear	54°12° (likely 53°12° to 59°15°)	54°12°	0%	10 mph16 km/h from NNE, gusts 10 mph16 km/h	97%	1%	0
Sat 6a	Clear	54°12° (likely 52°11° to 59°15°)	54°12°	0%	10 mph16 km/h from NNE, gusts 10 mph16 km/h	96%	0%	0
Sat 7a	Sunny	54°12° (likely 51°11° to 58°14°)	54°12°	0%	10 mph16 km/h from NNE, gusts 9 mph15 km/h	100%	0%	0
Sat 8a	Sunny	55°13° (likely 53°12° to 59°15°)	55°13°	0%	5 mph8 km/h from NE, gusts 9 mph14 km/h	99%	0%	0
Sat 9a	Sunny	59°15° (likely 58°14° to 62°17°)	59°15°	0%	5 mph8 km/h from NE, gusts 7 mph11 km/h	94%	0%	1
Sat 10a	Sunny	64°18° (likely 64°18° to 67°19°)	64°18°	0%	5 mph8 km/h from NE, gusts 7 mph11 km/h	84%	0%	2
Sat 11a	Sunny	67°19° (likely 67°19° to 71°22°)	67°19°	0%	10 mph16 km/h from NW, gusts 7 mph12 km/h	76%	0%	4
Sat 12p	Sunny	68°20° (likely 68°20° to 73°23°)	68°20°	0%	10 mph16 km/h from NW, gusts 8 mph12 km/h	71%	0%	5
Sat 1p	Sunny	67°19° (likely 67°19° to 74°23°)	67°19°	0%	10 mph16 km/h from NW, gusts 9 mph14 km/h	67%	0%	5
Sat 2p	Sunny	67°19° (likely 67°19° to 74°23°)	67°19°	0%	10 mph16 km/h from WNW, gusts 12 mph19 km/h	68%	0%	5
Sat 3p	Sunny	67°19° (likely 67°19° to 74°23°)	67°19°	0%	10 mph16 km/h from WNW, gusts 12 mph20 km/h	69%	0%	4
Sat 4p	Sunny	67°19° (likely 67°19° to 74°23°)	67°19°	0%	10 mph16 km/h from WNW, gusts 13 mph22 km/h	69%	0%	3
Sat 5p	Sunny	65°18° (likely 65°18° to 72°22°)	65°18°	0%	5 mph8 km/h from NW, gusts 12 mph19 km/h	73%	0%	2
Sat 6p	Clear	62°17° (likely 62°17° to 70°21°)	62°17°	0%	5 mph8 km/h from NW, gusts 11 mph17 km/h	75%	0%	1
Sat 7p	Clear	58°14° (likely 58°14° to 67°19°)	58°14°	0%	5 mph8 km/h from NW, gusts 12 mph19 km/h	77%	0%	0
Sat 8p	Clear	57°14° (likely 57°14° to 65°18°)	57°14°	0%	5 mph8 km/h from NNW, gusts 9 mph15 km/h	80%	0%	0
Sat 9p	Clear	57°14° (likely 57°14° to 64°18°)	57°14°	0%	5 mph8 km/h from NNW, gusts 8 mph12 km/h	82%	0%	0
Sat 10p	Clear	55°13° (likely 55°13° to 62°17°)	55°13°	0%	5 mph8 km/h from NNW, gusts 5 mph9 km/h	83%	0%	0
Sat 11p	Clear	55°13° (likely 54°12° to 61°16°)	55°13°	0%	0 mph0 km/h, gusts 4 mph6 km/h	85%	0%	0
Sun 12a	Clear	54°12° (likely 52°11° to 59°15°)	54°12°	0%	0 mph0 km/h, gusts 5 mph8 km/h	85%	8%	0
Sun 1a	Clear	54°12° (likely 51°11° to 59°15°)	54°12°	0%	0 mph0 km/h, gusts 5 mph8 km/h	87%	13%	0
Sun 2a	Clear	54°12° (likely 50°10° to 59°15°)	54°12°	0%	0 mph0 km/h, gusts 5 mph8 km/h	84%	12%	0
Sun 3a	Clear	54°12° (likely 49°9° to 58°14°)	54°12°	0%	0 mph0 km/h, gusts 5 mph9 km/h	85%	13%	0
Sun 4a	Clear	52°11° (likely 48°9° to 58°14°)	52°11°	0%	0 mph0 km/h, gusts 6 mph9 km/h	86%	16%	0
Sun 5a	Clear	52°11° (likely 48°9° to 58°14°)	52°11°	0%	5 mph8 km/h from E, gusts 6 mph9 km/h	86%	18%	0
Sun 6a	Clear	52°11° (likely 47°8° to 57°14°)	52°11°	0%	5 mph8 km/h from E, gusts 6 mph10 km/h	84%	19%	0
Sun 7a	Sunny	51°11° (likely 47°8° to 57°14°)	51°11°	0%	5 mph8 km/h from E, gusts 4 mph7 km/h	85%	20%	0
Sun 8a	Sunny	55°13° (likely 48°9° to 57°14°)	55°13°	0%	5 mph8 km/h from NE, gusts 4 mph6 km/h	85%	19%	0
Sun 9a	Partly sunny	60°16° (likely 54°12° to 60°16°)	60°16°	0%	5 mph8 km/h from NE, gusts 4 mph7 km/h	82%	25%	1
Sun 10a	Cloudy	64°18° (likely 62°17° to 65°18°)	64°18°	0%	5 mph8 km/h from NE, gusts 3 mph4 km/h	77%	54%	2
Sun 11a	Mostly sunny	66°19° (likely 66°19° to 69°21°)	66°19°	0%	5 mph8 km/h from W, gusts 4 mph7 km/h	73%	60%	4
Sun 12p	Mostly sunny	66°19° (likely 66°19° to 71°22°)	66°19°	0%	5 mph8 km/h from W, gusts 5 mph9 km/h	71%	54%	5
Sun 1p	Mostly sunny	68°20° (likely 67°19° to 71°22°)	68°20°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	71%	41%	5
Sun 2p	Sunny	68°20° (likely 67°19° to 71°22°)	68°20°	0%	10 mph16 km/h from NW, gusts 11 mph17 km/h	73%	42%	4
Sun 3p	Sunny	67°19° (likely 67°19° to 71°22°)	67°19°	0%	10 mph16 km/h from NW, gusts 11 mph18 km/h	74%	42%	4
Sun 4p	Mostly sunny	66°19° (likely 66°19° to 70°21°)	66°19°	0%	10 mph16 km/h from NW, gusts 10 mph17 km/h	76%	59%	3
Sun 5p	Mostly sunny	65°18° (likely 65°18° to 68°20°)	65°18°	0%	5 mph8 km/h from WNW, gusts 8 mph13 km/h	77%	61%	1
Sun 6p	Mostly clear	64°18° (likely 63°17° to 68°20°)	64°18°	0%	5 mph8 km/h from WNW, gusts 5 mph8 km/h	79%	51%	0
Sun 7p	Mostly clear	63°17° (likely 59°15° to 66°19°)	63°17°	0%	5 mph8 km/h from WNW, gusts 5 mph8 km/h	81%	35%	0
Sun 8p	Mostly clear	62°17° (likely 56°13° to 65°18°)	62°17°	0%	0 mph0 km/h, gusts 4 mph6 km/h	82%	40%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 23. Drizzle. High 68°20°, low 54°12°. Typical 77°25° / 51°11°. Rain 0.02 in0.5 mm, 40% chance. Forecasts agree.
1. Evening
  6 PM–midnight
  Clear, 60°16°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 54°12°
  Dry
Official NWS forecast
Tonight: Mostly clear, with a low around 54. North wind around 10 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
67°19°–68°20°
Low, likely
54°12°–60°16°
Typical high / low
77°25° / 51°11°
Wind
12 mph20 km/h, gusts 22 mph36 km/h
UV peak
5
Tomorrow, Oct 24. Sunny. High 68°20°, low 51°11°. Typical 77°25° / 51°11°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 52°11°
  Dry
Official NWS forecast
Day: Sunny, with a high near 68. North northwest wind 5 to 10 mph.
Night: Mostly clear, with a low around 51. North northeast wind 0 to 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
68°20°–75°24°
Low, likely
51°11°–58°14°
Typical high / low
77°25° / 51°11°
Wind
13 mph20 km/h, gusts 19 mph31 km/h
UV peak
5
Sunday, Oct 25. Mostly sunny. High 68°20°, low 51°11°. Typical 77°25° / 51°11°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 54°12°
  Dry
Official NWS forecast
Day: Sunny, with a high near 68. North northwest wind 5 to 10 mph.
Night: Partly cloudy, with a low around 51. North northwest wind 0 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
68°20°–71°22°
Low, likely
46°8°–57°14°
Typical high / low
77°25° / 51°11°
Wind
11 mph17 km/h, gusts 17 mph28 km/h
UV peak
5
Monday, Oct 26. Partly sunny. High 67°19°, low 51°11°. Typical 77°25° / 50°10°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 67.
Night: Mostly clear, with a low around 51.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–70°21°
Low, likely
47°8°–57°14°
Typical high / low
77°25° / 50°10°
Wind
12 mph19 km/h, gusts 20 mph32 km/h
UV peak
5
Tuesday, Oct 27. Cloudy. High 68°20°, low 51°11°. Typical 76°24° / 50°10°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 68.
Night: Partly cloudy, with a low around 51.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
68°20°–71°22°
Low, likely
48°9°–56°13°
Typical high / low
76°24° / 50°10°
Wind
17 mph27 km/h
UV peak
5
Wednesday, Oct 28. Cloudy. High 66°19°, low 53°12°. Typical 76°24° / 50°10°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 69°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 57°14°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 66.
Night: Mostly cloudy, with a low around 53.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–69°21°
Low, likely
48°9°–55°13°
Typical high / low
76°24° / 50°10°
Wind
14 mph22 km/h
UV peak
4
Thursday, Oct 29. Cloudy. High 64°18°, low 53°12°. Typical 76°24° / 50°10°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 59°15°
  20% chance · 0.04 in1.1 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 64.
Night: A slight chance of rain showers after 5am. Partly cloudy, with a low around 53.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–69°21°
Low, likely
51°11°–60°16°
Typical high / low
76°24° / 50°10°
Wind
12 mph19 km/h, gusts 24 mph38 km/h
UV peak
5
Friday, Oct 30. Showers. High 62°17°, low 55°13°. Typical 76°24° / 50°10°. Rain 0.1 in2.5 mm, 20% chance. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 58°15°
  20% chance · 0.04 in1.1 mm
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  20% chance · 0.05 in1.2 mm
3. Evening
  6 PM–midnight
  Mostly clear, 60°15°
  30% chance · 0.02 in0.5 mm
4. Overnight
  midnight–6 AM
  Cloudy, 54°12°
  40% chance · 0.2 in5 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers. Mostly sunny, with a high near 62.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–67°19°
Low, likely
53°12°–58°14°
Typical high / low
76°24° / 50°10°
Wind
11 mph18 km/h
UV peak
5
Saturday, Oct 31. Cloudy. High 66°19°, low 53°12°. Typical 76°24° / 50°10°. Rain 0.19 in4.8 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 56°13°
  30% chance
2. Afternoon
  noon–6 PM
  Mostly sunny, 66°19°
  30% chance
3. Evening
  6 PM–midnight
  Clear, 60°15°
  40% chance
4. Overnight
  midnight–6 AM
  Clear, 53°12°
  40% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–68°20°
Low, likely
48°9°–56°13°
Typical high / low
76°24° / 50°10°
Wind
11 mph17 km/h, gusts 18 mph28 km/h
UV peak
5
Sunday, Nov 1. Cloudy. High 70°21°, low 52°11°. Typical 75°24° / 50°10°. Rain 0.04 in1 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 56°13°
  40% chance
2. Afternoon
  noon–6 PM
  Partly sunny, 70°21°
  30% chance · 0.03 in0.8 mm
3. Evening
  6 PM–midnight
  Cloudy, 61°16°
  30% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
68°20°–72°22°
Low, likely
46°8°–59°15°
Typical high / low
75°24° / 50°10°
Wind
8 mph12 km/h, gusts 15 mph23 km/h
UV peak
5

10 days15 days30 days

The outlook

Today
41% chance of rain, high 68°, low 54°.
Tomorrow
Dry, high 68°, low 51°.
Sunday
Dry, high 68°, low 51°.
Rest of week
Mostly dry, highs 62–70°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (LOX) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Pier Avenue

1.1 mi

Level: 9.0 ft

Reading from Fri 7:53 PM · NWS gauge page

Arroyo Grande Creek Lagoon

1.5 mi

Level: 9.0 ft

Reading from Fri 7:48 PM · NWS gauge page

Arroyo Grande Creek at 22nd Street Bridge

1.9 mi

Below flood stage

Level: 21.6 ft

Reading from Fri 8:07 PM · NWS gauge page

Los Berros Creek

2.5 mi

Below flood stage

Level: 57.3 ft

Reading from Fri 7:35 PM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 5% more heating than a typical week.

This week 11Typical 11

Heating degree days, base 65°F

Comfort

Comfortable, non-humid air (dew point 55°F).

Open the windows?

Today, 10:00 PM–11:00 PM

Good stretch to open the windows.

Is this typical?

SAN LUIS OBISPO POLY · official normals 1991–2020 · records 1927–2026

Oct 23, today vs a typical year

Today’s expected high is 9°5° colder than typical.

Last 7 days vs normal

On average 8°5° warmer than normal (daily mean temperature).

+15°+8°SatOct 17
+7°+4°SunOct 18
+3°+2°MonOct 19
—TueOct 20
—WedOct 21
—ThuOct 22
—FriOct 23

Grover Beach weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 11 h 2 min; Losing 2 min 7 s a day; shortest Dec 21, 1 h 14 min less
Golden hour: 5:42–6:33 PM; Morning 6:59–7:50 AM
Blue hour: 6:33–6:43 PM; Morning 6:49–6:59 AM; first light 6:49 AM

Stars tonight? Fair

Clear 9 PM–6:50 AM, but the moon is 96% lit and up.

Moon

Waxing gibbous

95% lit · growing

Today: sets 4:34 AM · rises 4:47 PM
Full moon: Oct 25
New moon: Nov 8

Looking west from Grover Beach. The highest point on the skyline is about 2,500 ft, 9 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

1 active weather alert

Coastal Flood Advisory