Amatu Surf Forecast and Surf Reports

(Chiba, Japan)

Forecast
- Hourly Forecast
- 12 Day Forecast
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Weather State
Spot Information

Amatu Surf Guide

Amatu in Kanagawa and Chiba is an exposed beach break that has inconsistent surf Works best in offshore winds from the north northwest. Windswells are much more typical than groudswells and the best wave direction is from the southeast. The beach break provides left and right handers. It's sometimes crowded here. Water quality is rather poor here.

Amatu Spot Info

Type:	Rating:	Reliability:	Todays Sea Temp*:
Beach	3	inconsistent	80°F*ocean temperature recorded from satellite

Surfing Amatu:

The best conditions reported for surf at Amatu occur when a Southeast swell combines with an offshore wind direction from the North-northwest.

Hourly Forecast

12 Day Forecast

What's the best time of year to surf Amatu (for consistent clean waves)?

octoberBest Season: autumn

The best time of year for surfing Amatu with consistent clean waves (rideable swell with light / offshore winds) is during Autumn and most often the month of October. Clean surfable waves are typically found 39% of the time in October while 46% of the time it tends to be blown out. For the remaining 15% of the time it is considered too small by most surfers but may still be OK for beginners and groms at times.

clean

39%

Surfable waves that hold up well for longer rides in prevailing cross-offshore, offshore or light wind conditions.

blown out

46%

Surfable sized waves that are of poorer quality due to prevailing onshore, cross-onshore or windy conditions (may be preferable for kitesurfing).

too small

15%

Waves usually considered too small for good surf. Some wave-magnet breaks may still work though if conditions are right (on occasion).

Explore Amatu Location Map

Interactive Amatu surf break location map. View information about nearby surf breaks, their wave consistency and rating compared to other spots in the region. Current swell conditions from local buoys are shown along with live wind speed and direction from nearby weather stations. Click icons on the map for more detail. The closest passenger airport to Amatu is Tokyo International Airport (HND) in Japan, 60 km (37 miles) away (directly). The second nearest airport to Amatu is New Tokyo International Airport (NRT), also in Japan, 74 km (46 miles) away.

Map Icons:
Break
Live Wave Height (ft)
Live Wind Speed (mph)
Surf Rating (10 Max)
Ocean Swells (ft)
Wind Speed (mph)

Please note that some surf spot locations are approximate to protect their exact location while others are not shown at close zoom level.

Amatu Surf Forecasts:

Hourly Forecast

12 Day Forecast

Todays Surf Summary
Friday, 11 July 2025, 03:00 Local Time

m, °C	Friday 11
ft, °F	0AM	3AM	6AM	9AM
Wave (ft)	ESE	ESE	SE	SE
Period (s)	10	8	8	9
Wind (mph)
Wind State	cross- off	cross- off	cross- off	cross- off

Tides at Amatu

Current tide and informaton

For Kazusa Katuura, Tiba, Japan, 6 miles from Amatu.

Next High Water: 03:53am | 5ft

Next Low Water: 11:09am | 0ft

NEXT	IS AT (local time)	remaining
high tide
low tide

Amatu Sea Temperature

Sunny with very warm air temperatures, feeling like 25.0 °C once we account for any wind. Sea temperatures (26.8 °C) very warm too. Staying comfortable in the water at Amatu won't be a problem, but wear at least a rash-vest to keep the UV off.

Today, many surfers would wear a rashvest wetsuit.

Current Temp*: 80°F*ocean temperature recorded from satellite