Surf spot

Nagai

Forecast conditions and map view for Nagai in Japan, Kanagawa Chiba. Open the interactive surf map to inspect wind, waves, and nearby spots.

Country: Japan, Kanagawa Chiba
Coordinates: 35.1932, 139.6012

Metric
Metric	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00
Wave height (m)	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.3	0.3	0.3	0.3	0.3	0.3	0.4	0.4	0.4	0.4	0.4	0.5	0.5	0.5	0.5	0.5	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.7	0.6	0.6	0.6	0.5	0.5	0.5	0.4	0.4	0.4	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.5	0.7	1
Wave direction	S	S	S	S	S	S	S	S	S	S	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SE	SSE	SE	SSE	SSE	SE	SSE	SSE	SSE	SSE	SSE	S	S	SSE	S	SSE	SSE	SSE	SSE	SSE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE
Wave period (s)	5.3	5.3	5.3	5.2	5.5	5.3	5.7	5.2	6.2	5.1	5	5	5	5	5	4.9	5	4.8	4.5	5	5.5	5.8	7.4	5.5	7.2	6.8	6.7	6.8	5.2	5.3	5.3	5.3	5.3	4.9	4.7	4.8	4.8	5	5.1	5.2	5.3	5.5	7	7	7	6.8	6.9	7	7	7	7.2	6.7	13.2	12.6	11.8	10.2
Wave energy (kJ)	10	10	10	9	10	9	10	6	7	5	6	6	6	6	7	6	8	7	10	11	15	16	27	19	33	31	30	29	19	21	20	20	20	20	19	16	16	17	14	12	12	10	14	13	11	11	10	9	8	7	7	6	40	79	129	200
Wind speed (km/h)	11.5	12.2	14.8	13.8	17	13.4	12.8	12.6	11.4	9.7	10	12.4	8.9	10.5	14.7	14.1	13.9	13.2	13.7	19.3	29.7	35	25.2	22.1	21.5	17.5	16.5	10	12.9	17.7	9.8	6.9	13.3	10.7	14.3	15.6	15.9	13.5	18.1	16.9	12.3	15.9	19.2	17.3	20.8	23.2	27	27.1	28.7	24.5	28.7	28.7	28.2	29.9	28	28.9
Wind direction	NNEOffshore	NNEOffshore	NNEOffshore	NNEOffshore	NNEOffshore	NNEOffshore	NNEOffshore	NNEOffshore	NNEOffshore	NNEOffshore	NNEOffshore	NNEOffshore	ENECross-off	SOnshore	SOnshore	SSWOnshore	SSWOnshore	SWOnshore	SWOnshore	SSWOnshore	SOnshore	SSWOnshore	SSWOnshore	SSWOnshore	SWOnshore	SSWOnshore	SWOnshore	SWOnshore	SSWOnshore	SOnshore	SSWOnshore	NNWCross-off	NOffshore	NNEOffshore	NEOffshore	NEOffshore	NEOffshore	NNEOffshore	NEOffshore	NECross-off	NEOffshore	NEOffshore	NEOffshore	NNEOffshore	NNEOffshore	NEOffshore	NEOffshore	NNEOffshore	NNEOffshore	NNEOffshore	NNEOffshore	NNEOffshore	NOffshore	NNEOffshore	NNEOffshore	NOffshore

Nagai is a surf spot in Japan’s Kanagawa area, on the Miura Peninsula near Tokyo Bay. It’s often grouped with the broader Chiba/Kanagawa surf scene, though geographically it’s on the Kanagawa side. The beach is known for being a smaller, local-friendly point/reef-style setup with waves that are usually more manageable than some of Japan’s heavier open-ocean breaks.

Surf character

Wave type: generally cleaner, wrapped-in swell with a more protected feel than exposed beach breaks
Best on: south to southwest swells with light offshore winds
Wave quality: can be fun and peaky, but not always consistent
Crowds: often moderate, with local surfers present
Skill level: usually intermediate-friendly, though conditions can change quickly

Conditions and seasonality

Best season: typically autumn to winter for more consistent swell and cleaner winds
Summer: smaller, softer waves; more suited to longboards or beginners on good days
Typhoon season: can deliver the strongest surf, but also more risk and current

Beach and surroundings

Nagai has a scenic coastal feel, with a more relaxed atmosphere than urban surf zones. The area is known for natural coastline, nearby parks, and views toward Sagami Bay and the Miura countryside, making it a nice spot for a day trip.

Things to know

Watch for reef/rock sections and local setup variations
Tides can affect wave shape and rideability
Parking and access may vary by season and local regulations
Always check local surf reports and beach safety notices