Surf Forecasts:
Nagahama surf forecast from 3 Aug 2026:
- Best quality surf: Wednesday 5 Aug, 3PM (local time) - 8ft (2.4m), 15s period, SSE swell with offshore winds.
- Most powerful swell: Wednesday 5 Aug, 6PM (local time) - 8ft (2.4m), 15s period, SSE swell with 2,576 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 3PM (local time) - 8ft (2.4m), 15s period with SSE 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 Wednesday (Aug 05) at 3PM. The primary swell is predicted to be 2.4m and 15s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Nagahama in the next 16 days are 2.4m 15s and forecast to arrive on Wednesday (Aug 05) at 6PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 9s period and expected on Friday (Aug 07) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Wed 5th Aug) | 8ft (2.4m) 15s |
| Best Surf | 3PM (Wed 5th Aug) | 8ft (2.4m) 15s |
| Most Powerful | 6PM (Wed 5th Aug) | 8ft (2.4m) 15s |
Table - best surf conditions forecast for Nagahama over the next 16 days.
Short Range ForecastLight rain (total 2mm), mostly falling on Thu night. Warm (max 30°C on Thu afternoon, min 23°C on Tue night). Winds decreasing (fresh winds from the NNE on Tue night, light winds from the SE by Thu afternoon). | Days 4-6 Weather SummaryModerate rain (total 13mm), heaviest on Fri morning. Warm (max 28°C on Fri morning, min 23°C on Sun night). Winds increasing (light winds from the E on Sun afternoon, fresh winds from the NE by Sun night). | ||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | |||||||||||||||
AM | PM | 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) | SE 17 | SE 16 | SE 16 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | S 14 | S 14 | S 14 | SSW 15 | SSW 14 | S 14 | SSW 14 | SSW 15 | SSW 14 | SSW 15 | SSW 16 | SSW 16 | SSW 16 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1094 | 1464 | 2241 | 2228 | 2479 | 2228 | 1519 | 1929 | 1999 | 1855 | 1635 | 1143 | 971 | 1121 | 1007 | 732 | 693 | 657 | 499 | 436 | 218 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | off | cross-off | off | off | off | off |
High Tide | 8:18PM1.46m | 9:02AM1.24m | 8:46PM1.43m | 10:28AM1.12m | 9:19PM1.39m | 1:38PM1.11m | 10:08PM1.35m | 3:51PM1.23m | 11:38PM1.32m | 4:15PM1.34m | 1:20AM1.35m | 4:39PM1.42m | 2:33AM1.42m | ||||||||
Low Tide | 2:03PM0.63m | 2:51AM0.57m | 2:31PM0.80m | 3:51AM0.57m | 2:57PM0.95m | 5:14AM0.56m | 3:21PM1.10m | 6:52AM0.50m | 6:45PM1.21m | 8:11AM0.39m | 8:48PM1.17m | 9:07AM0.28m | 9:39PM1.09m | ||||||||
 | |  |  | |  | | |  |  | |  | | | | | | | | | | |
 | 4:52 | — | — | 4:52 | — | — | 4:52 | — | — | 4:54 | — | — | 4:54 | — | — | 4:54 | — | — | 4:56 | — | — |
 | — | 6:42 | — | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — | — | 6:36 | — |
mm | — | — | — | — | — | — | — | — | 2 | 3 | 2 | 6 | 2 | — | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 24 | 25 | 28 | 26 | 29 | 30 | 27 | 28 | 28 | 26 | 28 | 28 | 26 | 27 | 28 | 25 | 26 | 27 | 24 |
Feels °C | 23 | 24 | 22 | 23 | 28 | 27 | 31 | 33 | 31 | 29 | 28 | 28 | 30 | 29 | 28 | 29 | 31 | 25 | 22 | 24 | 20 |
Swell 1 Height (m) Direction Period (s) | SE 17 | SE 16 | SE 16 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | S 14 | S 14 | S 14 | SSW 15 | SSW 14 | S 14 | SSW 14 | SSW 15 | SSW 14 | SSW 15 | SSW 16 | SSW 16 | SSW 16 | SW 15 |
| kJ | 1094 | 1464 | 2241 | 2228 | 2479 | 2228 | 1519 | 1929 | 1999 | 1855 | 1635 | 1143 | 971 | 1121 | 1007 | 732 | 693 | 657 | 499 | 436 | 218 |
Swell 2 Height (m) Direction Period (s) | E 14 | E 13 | — | — | — | — | ESE 10 | ESE 10 | ESE 10 | ESE 9 | SE 10 | SE 9 | SW 16 | ESE 12 | ESE 12 | SSE 9 | SE 9 | SE 8 | SE 8 | SSW 13 | S 12 |
| kJ | 4 | 3 | — | — | — | — | 104 | 118 | 111 | 236 | 47 | 78 | 216 | 14 | 29 | 101 | 77 | 33 | 22 | 35 | 106 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | SE 12 | ESE 12 | — | ESE 12 | ESE 14 | ESE 13 | ESE 13 | ESE 12 | ESE 12 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 113 | — | 29 | 41 | 18 | 17 | 29 | 28 |
Wind waves Height (m) Direction Period (s) | NNE 3 | — | — | NNE 4 | — | — | — | — | — | — | — | — | — | — | — | — | SE 9 | ENE 3 | NNE 4 | NNE 4 | NNE 4 |
| kJ | 8 | — | — | 24 | — | — | — | — | — | — | — | — | — | — | — | — | 164 | 6 | 11 | 10 | 14 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 144 | 27 | 18 | 553 | 0 | 0 | 0 | 27 | 0 | 52 | 52 | 0 | 0 | 52 | 0 | 0 | 0 | 0 | 1042 | 52 | 1042 |
Best forecast wave conditions in Kanagawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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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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