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Live surf map

Onjuku, Chiba, Japan

6ft
swell
GOOD
7s period
⛅️Partly Cloudy
69°Fair
77°Fwater
12 km/hWSW
offshore Hs6ft
Swell Period7s
Swell DirSE
Wind12 km/h
Wind Gust33 km/h
UV Index4

Swell

Primary

6ft7sfrom SE 130°

Wind Sea

1.5ft2sfrom SSW 211°
NESW

Wind

12km/h

WSW238°

Gusts33 km/h
ConditionsLight

Conditions

Water
77°F
🌡Air
69°F
UV Index
4 Moderate
Visibility
38 km

Sky

🌤

Partly Cloudy

Rain chance
31%
Gusts
33 km/h

48-Hour Wave Outlook

10-Day Forecast

Today

🌦
★★★★

2–6ft

SE
73°F64°F
↑21
💧83%

Tomorrow

🌤
★★★★

2.5–6.5ft

SE
69°F59°F
↑17

Mon

🌦
★★★

2.5–6.5ft

SE
72°F60°F
↑32
💧69%

Hover or tap any day for a full forecast breakdown.

Tides

📡

Tide data temporarily unavailable.

Could not retrieve tidal predictions for this location. Try refreshing. Tide data is sourced from NOAA CO-OPS, DFO, and the Open-Meteo global tidal model — all free, no API key required.

Spots Nearby

No named surf spots found nearby.

Surf Climatology

Onjuku Surf Report

Chiba, Japan · 35.1863°, 140.3520°

Onjuku (Chiba, Japan) is a beach break. It has both lefts and rights. In our swell history, its best months are Feb & Nov. This page is its live surf report and 10-day forecast from Groundswell. The forecast shows swell height, period and direction, wind and tides hour by hour, with a rating for each day.

Peak Season

Feb & Nov

Best time to surf Onjuku: seasonal wave data

Nearby Surf Spots