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Surf Forecasts:
Nagahama surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 8 pm Monday 18 May 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
19.6° C
(Which is 1.1°C colder than average for this time of year)How big are the waves at Nagahama today?
The current surf forecast for Nagahama at 4AM is: 0.3m 10s primary swell from a Southeast direction and 0.2m 7s secondary swell from a South-southeast direction, 0.4m 3s secondary swell from a South-southwest direction (forecast issued at 08:00pm May 18). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | 1.5ft (0.4m) | 10s |
| Afternoon (19 May) | 3.5ft (1.0m) | 4s |
| Evening (19 May) | 1.5ft (0.4m) | 11s |
Table - waves today at Nagahama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 26mm), heaviest during Thu afternoon. Warm (max 22°C on Wed afternoon, min 16°C on Thu afternoon). Winds decreasing (fresh winds from the SSW on Tue afternoon, light winds from the WSW by Wed night). | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | |||||||||||||||||||||
6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
SE 10 | SE 10 | SE 7 | SSE 7 | SE 10 | SE 10 | SE 11 | S 4 | SSW 4 | SE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | S 6 | S 6 | |
16 | 16 | 9 | 5 | 16 | 28 | 18 | 37 | 32 | 29 | 29 | 29 | 40 | 38 | 27 | 26 | 16 | 15 | 14 | 14 | 14 | 13 | 25 | 38 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | on | on | on | on | on | cross-off | off | off | cross-off | |
High Tide | 6:32PM1.39m | 5:00AM1.49m | 7:16PM1.35m | 5:32AM1.46m | 8:03PM1.30m | 6:06AM1.40m | ||||||||||||||||||
Low Tide | 11:37PM0.86m | 12:10PM-0.04m | 00:11AM0.91m | 12:50PM0.02m | 00:49AM0.96m | 1:32PM0.11m | ||||||||||||||||||
 |  | | | | |  | | | | | | | | |  | |  |  | |  | | |  | |
 | — | — | — | 4:35 | — | — | — | — | — | — | — | 4:33 | — | — | — | — | — | — | — | 4:33 | — | — | — | — |
 | 6:39 | — | — | — | — | — | — | — | 6:40 | — | — | — | — | — | — | — | 6:40 | — | — | — | — | — | — | 6:42 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 4 | 3 | 3 | 9 | |
Temp °C | 21 | 21 | 20 | 19 | 19 | 19 | 20 | 21 | 20 | 20 | 20 | 20 | 19 | 20 | 21 | 22 | 21 | 21 | 21 | 20 | 19 | 17 | 17 | 17 |
17 | 17 | 17 | 16 | 17 | 16 | 15 | 16 | 15 | 16 | 17 | 19 | 18 | 20 | 20 | 19 | 19 | 20 | 21 | 22 | 20 | 14 | 14 | 14 | |
Swell 1 Height (m) Direction Period (s) | SSE 7 | SE 7 | SE 7 | ESE 10 | SE 10 | SE 10 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SSW 4 | SE 9 | S 5 | S 6 | S 6 |
 kJ | 5 | 8 | 8 | 10 | 16 | 28 | 18 | 18 | 18 | 29 | 29 | 29 | 40 | 38 | 27 | 26 | 15 | 15 | 14 | 5 | 14 | 4 | 25 | 38 |
Swell 2 Height (m) Direction Period (s) | ESE 10 | SE 10 | SE 10 | SSE 7 | SSE 7 | ESE 9 | ESE 9 | E 10 | — | — | — | — | — | SE 5 | — | — | — | — | S 6 | SE 9 | S 4 | SE 9 | SE 9 | SE 9 |
| kJ | 10 | 4 | 4 | 5 | 4 | 29 | 16 | 2 | — | — | — | — | — | 6 | — | — | — | — | 1 | 14 | 3 | 13 | 13 | 13 |
Swell 3 Height (m) Direction Period (s) | SE 10 | SE 10 | SSE 7 | E 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 6 | S 6 | S 7 | — | — |
| kJ | 16 | 16 | 9 | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | — | — |
Wind waves Height (m) Direction Period (s) | S 3 | S 3 | SSW 3 | SSW 3 | SSW 3 | SW 3 | S 4 | S 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | S 3 | S 4 | SSW 4 | SSW 4 | S 4 | — | — | — | ENE 2 | N 2 |
| kJ | 8 | 6 | 4 | 4 | 5 | 3 | 12 | 37 | 32 | 25 | 15 | 11 | 6 | 2 | 6 | 14 | 16 | 12 | 7 | — | — | — | 1 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 72 | 85 | 85 | 85 | 42 | 85 | 519 | 519 | 85 | 42 | 42 | 42 | 42 | 11 | 237 | 42 | 42 | 42 | 42 | 8 | 42 | 39 | 27 | 12 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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