Surf Forecasts:
Nagahama surf forecast from 19 Oct 2026:
- Best quality surf: Friday 23 Oct, 12AM (local time) - 4.5ft (1.3m), 14s period, S swell with offshore winds.
- Most powerful swell: Thursday 22 Oct, 3AM (local time) - 4.5ft (1.3m), 15s period, S swell with 730 kJ wave energy.
- Next surfable swell (1★+): Friday 23 Oct, 12AM (local time) - 4.5ft (1.3m), 14s period with S swell.
Best Forecast Surf Conditions for Nagahama this week:
The surf forecast for Nagahama over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Oct 23) at 12AM. The primary swell is predicted to be 1.3m and 14s period with a secondary swell of 0.8m and 16s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Nagahama in the next 16 days are 1.3m 15s and forecast to arrive on Thursday (Oct 22) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Friday (Oct 23) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Fri 23rd Oct) | 4.5ft (1.3m) 14s |
| Best Surf | 12AM (Fri 23rd Oct) | 4.5ft (1.3m) 14s |
| Most Powerful | 3AM (Thu 22nd Oct) | 4.5ft (1.3m) 15s |
Table - best surf conditions forecast for Nagahama over the next 16 days.
Short Range ForecastMostly dry. Warm (max 26°C on Tue afternoon, min 18°C on Thu afternoon). Winds increasing (light winds from the WSW on Tue night, strong winds from the SW by Wed night). | Days 5-7 Weather SummaryHeavy rain (total 49mm), heaviest during Sat morning. Warm (max 23°C on Sun afternoon, min 15°C on Thu night). Winds decreasing (fresh winds from the N on Sat afternoon, calm by Sun afternoon). | ||||||||||||||||||
Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | SSW 5 | SE 14 | SSW 6 | SSE 13 | S 15 | SSW 6 | SSW 8 | S 14 | S 14 | S 14 | S 14 | SSW 14 | SW 16 | SSW 16 | SSW 16 | SW 14 | SSW 13 | SSW 12 | SSW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 44 | 52 | 97 | 189 | 210 | 300 | 358 | 678 | 613 | 701 | 469 | 557 | 395 | 436 | 419 | 211 | 114 | 101 | 56 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | off | cross-off | off | off | cross-off | cross-off | off | cross-off | cross-off | off | glassy | cross |
High Tide | 9:01PM1.19m | 2:00PM1.31m | 00:18AM1.17m | 2:27PM1.37m | 1:52AM1.26m | 2:51PM1.42m | 2:50AM1.38m | 3:14PM1.46m | 3:37AM1.47m | 3:37PM1.50m | 4:19AM1.54m | 3:59PM1.54m | |||||||
Low Tide | 5:59AM0.55m | 7:51PM1.02m | 7:21AM0.55m | 8:26PM0.85m | 8:17AM0.54m | 8:56PM0.68m | 9:00AM0.54m | 9:26PM0.51m | 9:37AM0.57m | 9:56PM0.36m | 10:11AM0.62m | 10:27PM0.24m | |||||||
 |  |  | |  | |  | | | | | |  |  | |  | | | | |
 | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — |
 | — | — | 5:00 | — | — | 5:00 | — | — | 4:59 | — | — | 4:57 | — | — | 4:55 | — | — | 4:54 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 20 | 19 | 6 | — | — | 1 |
Temp °C | 23 | 25 | 26 | 25 | 25 | 25 | 25 | 20 | 19 | 18 | 17 | 19 | 18 | 16 | 16 | 18 | 21 | 23 | 22 |
Feels °C | 20 | 22 | 24 | 25 | 21 | 20 | 19 | 15 | 15 | 13 | 13 | 17 | 16 | 14 | 12 | 14 | 22 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 14 | SSE 12 | SSE 13 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | SSW 14 | SSW 14 | SSW 16 | SSW 16 | SW 14 | SSW 13 | SSW 12 | SSW 12 |
| kJ | 12 | 50 | 57 | 189 | 210 | 184 | 257 | 678 | 613 | 701 | 469 | 557 | 373 | 436 | 419 | 211 | 114 | 101 | 56 |
Swell 2 Height (m) Direction Period (s) | SSE 15 | SSE 16 | SSE 15 | S 6 | SSE 12 | S 19 | S 17 | SSW 7 | S 7 | SSW 16 | SSW 16 | SE 8 | SE 8 | SE 9 | SE 9 | SE 8 | SE 7 | SE 7 | SE 8 |
| kJ | 21 | 52 | 71 | 31 | 121 | 170 | 283 | 25 | 50 | 310 | 177 | 17 | 35 | 47 | 74 | 60 | 26 | 18 | 9 |
Swell 3 Height (m) Direction Period (s) | S 18 | SSE 16 | — | S 17 | — | SSE 11 | SSE 10 | SE 8 | SE 9 | ESE 9 | — | — | SW 16 | — | — | — | — | — | SE 10 |
| kJ | 24 | 51 | — | 93 | — | 46 | 21 | 75 | 43 | 49 | — | — | 395 | — | — | — | — | — | 26 |
Wind waves Height (m) Direction Period (s) | SSW 5 | SSW 6 | SSW 6 | SSW 5 | SSW 5 | SSW 6 | SSW 8 | NNE 3 | NE 3 | ENE 4 | NE 3 | — | — | — | — | NNE 3 | — | — | — |
| kJ | 44 | 40 | 97 | 42 | 92 | 300 | 358 | 3 | 5 | 13 | 2 | — | — | — | — | 2 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 34 | 87 | 492 | 20 | 492 | 492 | 489 | 27 | 135 | 0 | 0 | 0 | 0 | 0 | 18 | 14 | 0 | 0 | 27 |
Best forecast wave conditions in Kanagawa | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
Header Global | |||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Nagahama surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Nagahama Surf forecast
The above surf forecast table for Nagahama provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Nagahama can be found by selecting the local surf guide option on the grey menu. Our Nagahama surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Nagahama) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Nagahama may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Nagahama is 6 km (4 miles) from Miura. If you plan a holiday in Kanagawa, look for hotels and other accommodation in Miura. Miura has rooms for a wide range of budgets as well as car hire and transport links.
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