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Surf Forecasts:
Nagahama surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 8 am Wednesday 20 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
20.0° C
(Which is slightly cooler than normal)How big are the waves at Nagahama today?
The current surf forecast for Nagahama at 4PM is: 0.9m 4s primary swell from a South direction and 0.3m 10s secondary swell from a Southeast direction (forecast issued at 08:00am May 20). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 1.5ft (0.4m) | 10s |
| Afternoon (20 May) | 3ft (0.9m) | 4s |
| Evening (20 May) | 1ft (0.3m) | 10s |
Table - waves today at Nagahama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 22mm), heaviest during Thu afternoon. Warm (max 22°C on Wed morning, min 14°C on Fri morning). Winds increasing (light winds from the WNW on Thu afternoon, strong winds from the NNE by Fri afternoon). | ||||||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
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 | 6 PM | 9 PM | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SE 11 | SE 10 | SE 10 | S 4 | S 4 | SE 10 | SE 10 | SE 9 | SE 9 | S 6 | S 7 | SSW 7 | S 7 | S 8 | S 8 | S 8 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | SSW 8 | S 8 | |
40 | 28 | 27 | 30 | 33 | 20 | 14 | 14 | 14 | 36 | 150 | 356 | 186 | 138 | 115 | 72 | 54 | 52 | 40 | 15 | 16 | 17 | 7 | 10 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | cross-on | cross-on | on | on | on | on | on | on | on | cross-on | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | |
High Tide | 5:32AM1.46m | 8:03PM1.30m | 6:06AM1.40m | 8:56PM1.25m | 6:46AM1.31m | 9:56PM1.21m | ||||||||||||||||||
Low Tide | 12:50PM0.02m | 00:49AM0.96m | 1:32PM0.11m | 1:38AM0.98m | 2:20PM0.23m | 2:47AM0.99m | ||||||||||||||||||
 |  | | |  |  |  | |  |  | | | |  | | | | | | | | | |  | |
 | 4:33 | — | — | — | — | — | — | 4:33 | — | — | — | — | — | — | — | 4:33 | — | — | — | — | — | — | — | 4:31 |
 | — | — | — | — | 6:40 | — | — | — | — | — | — | — | 6:42 | — | — | — | — | — | — | — | 6:43 | — | — | 6:44 |
— | — | — | — | — | — | 1 | 2 | 1 | 1 | — | 4 | 1 | 3 | 3 | 1 | 2 | 2 | 1 | — | — | — | — | — | |
Temp °C | 20 | 20 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 22 | 20 | 18 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 15 | 15 | 14 | 14 |
19 | 19 | 20 | 19 | 19 | 20 | 22 | 22 | 20 | 20 | 21 | 20 | 17 | 12 | 11 | 9 | 8 | 6 | 5 | 5 | 6 | 7 | 5 | 7 | |
Swell 1 Height (m) Direction Period (s) | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 9 | S 5 | ESE 9 | ESE 9 | S 7 | S 7 | S 8 | S 8 | S 8 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | SSE 7 | S 8 |
 kJ | 40 | 28 | 27 | 16 | 15 | 15 | 14 | 14 | 13 | 56 | 59 | 187 | 186 | 138 | 115 | 72 | 54 | 52 | 40 | 15 | 16 | 17 | 5 | 10 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | SSE 4 | S 6 | SE 9 | — | — | — | ESE 10 | ESE 10 | ESE 10 | SE 9 | SE 9 | SE 9 | SE 11 | SW 8 | SE 11 | E 11 | SSW 8 | E 11 |
| kJ | — | — | — | — | — | — | 6 | 1 | 14 | — | — | — | 37 | 37 | 35 | 3 | 3 | 3 | 4 | 9 | 5 | 2 | 7 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | S 6 | — | — | — | — | — | — | — | — | SE 11 | E 11 | E 11 | E 8 | SE 11 | SSE 7 | SSE 7 | E 11 | E 9 |
| kJ | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | 5 | 3 | 2 | 6 | 5 | 9 | 10 | 2 | 2 |
Wind waves Height (m) Direction Period (s) | SSW 4 | S 4 | S 4 | S 4 | S 4 | SSW 4 | S 4 | SSW 4 | — | S 6 | S 7 | SSW 7 | — | NE 2 | NE 3 | NNE 3 | NNE 3 | NNE 3 | NNE 4 | NNE 4 | NNE 4 | NNE 4 | NNE 4 | NNE 4 |
| kJ | 9 | 9 | 15 | 30 | 33 | 20 | 9 | 5 | — | 36 | 150 | 356 | — | 1 | 4 | 3 | 6 | 10 | 13 | 25 | 24 | 19 | 16 | 19 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 42 | 87 | 237 | 237 | 42 | 42 | 42 | 42 | 42 | 24 | 24 | 11 | 0 | 27 | 87 | 142 | 229 | 471 | 144 | 488 | 488 | 488 | 488 | 144 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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