South Bay · Right now

Hermosa Beach

LA County surf-zone forecast; official range: 2–4 ft

Updated Tue, Sep 22, 5:00 PM PDT

When to go

Around 6:00 PM

Windy · Moderate confidence

1.6–1.6 ft · Coastal waves · not surf height

Wind: 10.0 kt · onshore

Forecast details

Waves are forecast to reach this beach.
This is the best time in the forecast, though wind may make it choppy.

Other wind windows

Plan around the wind

The best available upcoming daylight wind sample to compare with the wave evidence. This compares wind only; wave size, tide suitability, and hazards can change your choice.

At 6:00 PM · America/Los_Angeles
Unfavorable wind · up to 10.0 kt · reported gusts up to 13.8 kt
Caution: This is the best available wind comparison, not a favorable-wind label. The selected wind is unfavorable for this break.
Coastal waves at about 10 m depth: 1.6–1.6 ft across the period. Surf height unavailable. Tide data available; check the local tide response.
Wind source time: Sep 22, 5:00 PM PDT. This is not the model run issue time.

How these periods are chosen

The planner prefers three consecutive hourly samples covering two daylight hours, but retains shorter one- or two-sample evidence when that is all the forecast provides. Light wind means at most 6 kt. Moderate offshore means at most 12 kt from land toward the sea when shore orientation is verified. Strong wind or known gusts of 20 kt or more remain visible as cautions instead of making the entire comparison disappear. These are comparison labels, not locally tested surf-quality or safety ratings. Missing gusts remain unknown. Terrain shelter, currents, closures, and your ability are not assessed.

Wind WNW 10.8 kt

Tide 4 ft rising

Wave, wind and tide details

CDIP coastal waveWSW 1.6 ft @ 15sECMWF forecast valid Sep 22, 5:00 PM PDTL0528 · significant wave height at 10 m depth · not breaking surfCDIP issued Sep 22, 2:37 PM PDT · upstream model cycle not providedSpectral split: ≥10 s 0.9 ft · <10 s 1.3 ft

Coastal period bands

20 s and longer: 0.2 ft · energy-weighted direction 250°14–20 s: 0.6 ft · energy-weighted direction 240°10–14 s: 0.6 ft · energy-weighted direction 242°Under 10 s: 1.3 ft · energy-weighted direction 259°Band heights combine as energy, not by addition. Period bands are not separately identified swell systems. Forecast omits wave periods shorter than about 4 s.

Offshore model swell— Unavailable No usable model swell value for this hour

Model windOpen-Meteo · requested at 33.862, -118.405; not a local anemometerWNW 10.8 ktonshoreValid 2026-09-22 17:00 · America/Los_Angeles9.6 kt onshore component

Tide4 ftrisingSanta Monica station 9410840 · regional proxy, interpolated between station extrema · predicted height relative to MLLW59% of adjacent local low–high range · descriptive, not a safety rating

Surf height unavailable. Coastal and offshore waves are not breaking-wave heights.

Coastal waves and wind

CDIP significant wave height at about 10 m depth. Gaps remain gaps; no breaking-wave range is implied.

Buoy-driven nowcast for available past hours; labeled coastal forecasts for future hours. Changes of source can cause discontinuities. Values and source labels are listed below.Wind arrows point from the reported direction

Hourly forecast

Hourly surf forecast for Hermosa Beach
Time	Coastal waves · ~10 m	Wind	Tide	Offshore swell
5 PM	WSW 1.6 ft @ 15s	WNW 10.8 ktonshore	4 ftrising	— Unavailable
6 PM	WSW 1.6 ft @ 15s	WNW 10 ktonshore	4.5 ftrising	— Unavailable
7 PM	WSW 1.6 ft @ 15s	W 9.6 ktonshore	5 ftnear high	— Unavailable
8 PM	WSW 1.7 ft @ 15s	W 9.4 ktonshore	5 ftfalling	— Unavailable

5 PM1.6 ft coastal waves

WSW 15s · ECMWF forecast · about 10 m depth, not breaking surf.

WindWNW 10.8 ktonshoreTide4 ftrisingOffshore swell— Unavailable

6 PM1.6 ft coastal waves

WSW 15s · ECMWF forecast · about 10 m depth, not breaking surf.

WindWNW 10 ktonshoreTide4.5 ftrisingOffshore swell— Unavailable

7 PM1.6 ft coastal waves

WSW 15s · ECMWF forecast · about 10 m depth, not breaking surf.

WindW 9.6 ktonshoreTide5 ftnear highOffshore swell— Unavailable

8 PM1.7 ft coastal waves

WSW 15s · ECMWF forecast · about 10 m depth, not breaking surf.

WindW 9.4 ktonshoreTide5 ftfallingOffshore swell— Unavailable

Tide

Santa Monica station 9410840 · regional proxy, interpolated between station extrema · MLLW

Interpolated tide height Recommended window

About this spot

Beachbreak with slightly less exposure than El Porto.

Mapped spot coordinate: 33.862, -118.405.

Model request point: South Bay (33.87, -118.42). Model output times describe valid conditions; the provider does not expose the model run issue time in this response.

CDIP L0528: 33.8605, -118.4082 · 10.00 m depth · 256° shore normal · shore type 1 · 551 m transect. Planar west-southwest-facing transect landing at the Hermosa pier area (33.86177, -118.40245), 256° normal; no pier-scale breaking claim. CDIP metadata.

Forecast sources

Data coverage 4/4 sources

Source availability is not forecast accuracy. Where an empirical model passes historical testing, its error and interval coverage are shown above. Source count cannot increase that confidence.

LA County surf-zone forecast2–4 ftCurrent · Sep 22, 2:00 PM PDT

CDIP MOP coastal forecast (ECMWF)
1/1 transects have all 05:00–19:00 hours on 2026-09-22; 1 have some coverage. 0 explicitly use WW3 fallback; 0 reuse retained responses. Timestamp is the oldest usable CDIP issue, not the upstream model cycle. Hs at about 10 m, not breaking surf.CurrentSep 22, 2:37 PM PDT
NWS Los Angeles/Oxnard
Mixed west swell and south swellCurrentSep 22, 2:00 PM PDT
Santa Monica 9410840
MLLW high and low predictions; time shown is the end of available coverageCurrentSep 24, 8:37 PM PDT
Open-Meteo local wind
1/1 requested spots have usable local wind; NWS is tried only where this forecast is unusable.CurrentSep 22, 5:00 PM PDT

How best guesses are made

Best guesses combine usable wave and wind evidence, with qualitative confidence and specific limitations. A missing tide or local surf-height model does not prevent useful guidance. Tide levels use the named station datum; their effect at this break remains uncertain. Wind direction is relative to the mapped beach orientation, without calibrated terrain or shelter effects. The comparison is a heuristic, not a measured quality rating.