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Surf Forecasts:
Nagahama surfForecast / Kanagawa / Japan
16 Day Weather and Surf, issued 2 am Friday 24 Apr 2026 JSTForecast update in hr min s Forecast update imminent
Nagahama surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Nagahama sea temperature is
18.8° C
(Which is normal for this time of year)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 (Apr 24) at 9PM. The primary swell is predicted to be 0.5m and 8s period with a secondary swell of 0.5m and 8s. Another secondary swell of 0.1m and 12s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Nagahama in the next 16 days are 1.5m 6s and forecast to arrive on Tuesday (Apr 28) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Monday (Apr 27) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Fri 24th Apr) | 1.5ft (0.5m) 8s |
| Best Surf | 9PM (Fri 24th Apr) | 1.5ft (0.5m) 8s |
| Most Powerful | 6PM (Tue 28th Apr) | 5ft (1.5m) 6s |
Table - best surf conditions forecast for Nagahama over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 13mm), heaviest on Sun night. Very mild (max 17°C on Fri afternoon, min 12°C on Fri night). Winds decreasing (fresh winds from the NE on Fri morning, light winds from the S by Sun afternoon). | Days 4-6 Weather SummaryModerate rain (total 18mm), heaviest on Mon morning. Warm (max 20°C on Tue afternoon, min 13°C on Mon morning). Winds increasing (light winds from the ESE on Mon afternoon, strong winds from the SW by Tue night). | ||||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
SSW 8 | S 8 | S 8 | S 8 | S 7 | SE 5 | SE 6 | SE 6 | SE 6 | SE 7 | SE 7 | SE 7 | SSW 4 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 6 | SSW 6 | SE 4 | |
20 | 35 | 34 | 19 | 17 | 5 | 8 | 9 | 19 | 24 | 23 | 8 | 14 | 131 | 104 | 26 | 24 | 38 | 7 | 4 | 3 | |
Wind (km/h) | |||||||||||||||||||||
off | cross-off | off | off | cross-off | cross-off | off | cross | off | off | cross-off | on | on | on | on | on | on | off | cross-off | cross-on | cross-on | |
High Tide | 00:40AM1.11m | 8:34AM1.07m | 1:36AM1.17m | 11:44AM1.02m | 2:08AM1.22m | 1:32PM1.10m | 2:34AM1.27m | 2:36PM1.21m | 2:58AM1.32m | 3:25PM1.31m | 3:22AM1.37m | 4:09PM1.39m | |||||||||
Low Tide | 3:49PM0.34m | 5:15AM1.04m | 5:27PM0.42m | 7:28AM0.90m | 6:54PM0.44m | 8:09AM0.73m | 7:57PM0.44m | 8:42AM0.56m | 8:44PM0.45m | 9:13AM0.39m | 9:23PM0.48m | 9:44AM0.24m | 9:57PM0.52m | ||||||||
 | |  |  | |  | | |  |  |  | | | | | | |  | | | | |
 | 4:58 | — | — | 4:58 | — | — | 4:56 | — | — | 4:56 | — | — | 4:54 | — | — | 4:52 | — | — | 4:52 | — | — |
 | — | 6:20 | — | — | 6:21 | — | — | 6:22 | — | — | 6:22 | — | — | 6:23 | — | — | 6:23 | — | — | 6:24 | — |
— | — | — | — | — | — | — | — | 13 | 17 | — | — | — | — | — | — | — | 1 | — | — | — | |
Temp °C | 16 | 17 | 14 | 15 | 16 | 14 | 16 | 17 | 16 | 15 | 16 | 18 | 19 | 20 | 19 | 20 | 20 | 17 | 15 | 16 | 17 |
10 | 13 | 8 | 11 | 11 | 10 | 14 | 15 | 15 | 11 | 15 | 16 | 15 | 13 | 12 | 14 | 12 | 10 | 12 | 11 | 13 | |
Swell 1 Height (m) Direction Period (s) | SSW 8 | S 8 | S 8 | S 8 | S 7 | SE 5 | SE 6 | SE 6 | SE 6 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | E 7 | SSW 6 | — | SSW 7 | SSW 6 | SSW 6 | SE 4 |
 kJ | 20 | 35 | 34 | 19 | 17 | 5 | 8 | 9 | 19 | 24 | 23 | 8 | 2 | 2 | 1 | 26 | — | 38 | 7 | 4 | 3 |
Swell 2 Height (m) Direction Period (s) | SE 6 | SSW 8 | SE 12 | — | SE 11 | S 7 | S 7 | — | SE 8 | — | — | — | E 12 | S 14 | — | S 13 | — | — | SE 8 | SE 8 | SE 9 |
| kJ | 6 | 26 | 5 | — | 5 | 4 | 1 | — | 3 | — | — | — | 3 | 4 | — | 3 | — | — | 3 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | SSE 8 | SE 12 | SE 12 | E 12 | SW 8 | — | — | — | E 13 | S 16 | — | — | S 14 | S 14 | — | — | S 13 | — | — | — | SE 7 |
| kJ | 13 | 5 | 5 | 3 | 2 | — | — | — | 3 | 5 | — | — | 4 | 4 | — | — | 3 | — | — | — | 2 |
Wind waves Height (m) Direction Period (s) | NNE 4 | ENE 2 | E 2 | ENE 2 | — | — | — | — | — | NNE 3 | — | SSW 3 | SSW 4 | SSW 6 | SSW 6 | — | SSW 6 | — | NE 3 | — | — |
| kJ | 8 | 1 | 1 | 1 | — | — | — | — | — | 3 | — | 4 | 14 | 131 | 104 | — | 24 | — | 1 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 135 | 144 | 27 | 489 | 553 | 27 | 144 | 55 | 8 | 53 | 39 | 43 | 142 | 523 | 229 | 2313 | 86 | 841 | 1008 | 55 | 42 |
Best forecast wave conditions in Kanagawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
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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