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Surf Forecasts:
Nagahama surfForecast / Kanagawa / Japan
16 Day Weather and Surf, issued 8 pm Tuesday 07 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
15.1° C
(Which is 2.6°C colder than average 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 Saturday (Apr 11) at 6AM. The primary swell is predicted to be 1.4m and 8s period with a secondary swell of 0.1m and 11s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Nagahama in the next 16 days are 2.3m 8s and forecast to arrive on Saturday (Apr 11) at 3AM. 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 Wednesday (Apr 08) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sat 11th Apr) | 4.5ft (1.4m) 8s |
| Best Surf | 6AM (Sat 11th Apr) | 4.5ft (1.4m) 8s |
| Most Powerful | 3AM (Sat 11th Apr) | 7.5ft (2.3m) 8s |
Table - best surf conditions forecast for Nagahama over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Light rain (total 9mm), mostly falling on Thu night. Very mild (max 17°C on Fri afternoon, min 9°C on Tue night). Mainly strong winds. | Days 3-6 Weather Summary Mostly dry. Warm (max 20°C on Sat afternoon, min 16°C on Fri night). Winds decreasing (strong winds from the SSW on Fri night, calm by Sun morning). | |||||||||||||||||||||
Wednesday 08 | Thursday 09 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tue 14 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 9 | 8 | 8 | 11 | 8 | 4 | 5 | 5 | 6 | 8 | 8 | 8 | 8 | 11 | 12 | 12 | 12 | 11 | 11 | 5 | 11 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 64 | 50 | 31 | 20 | 9 | 52 | 47 | 88 | 248 | 472 | 181 | 95 | 57 | 19 | 21 | 21 | 47 | 45 | 43 | 47 | 42 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- on | on | on | on | on | on | cross- on | on | off | cross- on | cross- off | off | cross- on | cross- on | cross- on | cross- on | on | on | off | |
High Tide / height (m) | 6:47AM 1.33 | 9:47PM 1.05 | 7:11AM 1.25 | 12:44AM 1.04 | 7:40AM 1.14 | 2:10AM 1.12 | 9:57AM 1.02 | 2:34AM 1.19 | 12:57PM 1.05 | 2:55AM 1.24 | 2:15PM 1.16 | 3:17AM 1.29 | 3:08PM 1.28 | |||||||||
Low Tide / height (m) | 1:08AM 0.85 | 2:17PM 0.20 | 1:32AM 0.95 | 3:21PM 0.30 | 2:06AM 1.04 | 4:59PM 0.38 | 7:35AM 1.01 | 6:43PM 0.39 | 8:18AM 0.86 | 7:54PM 0.36 | 8:47AM 0.70 | 8:43PM 0.34 | 9:15AM 0.53 | |||||||||
Wednesday 08 | Thursday 09 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tue 14 | ||||||||||||||||
| Sunrise | - | 5:20 | - | - | 5:18 | - | - | 5:16 | - | - | 5:16 | - | - | 5:13 | - | - | 5:13 | - | - | 5:11 | - | |
| Sunset | - | - | 6:07 | - | - | 6:07 | - | - | 6:08 | - | - | 6:09 | - | - | 6:09 | - | - | 6:10 | - | - | 6:12 | |
 |  | | |  |  |  | |  |  | | | | | | | | | | | | ||
Rain (mm) | - | - | - | - | - | - | 4 | - | 5 | - | - | - | - | - | - | - | - | - | - | 3 | - | |
| Temp. °C | 12 | 13 | 13 | 14 | 16 | 16 | 16 | 16 | 17 | 18 | 19 | 20 | 18 | 18 | 18 | 17 | 18 | 19 | 18 | 15 | 17 | |
| Feels °C (?) | 1 | 9 | 8 | 9 | 8 | 7 | 9 | 8 | 11 | 12 | 18 | 19 | 17 | 18 | 16 | 15 | 17 | 17 | 15 | 11 | 13 | |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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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