Surf Forecasts:
Niijima - Awaii surf forecast from 20 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 6AM (local time) - 10ft (3.0m), 16s period, S swell with cross-onshore winds.
- Most powerful swell: Tuesday 25 Aug, 9AM (local time) - 10ft (3.0m), 16s period, S swell with 3,981 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 6AM (local time) - 2.5ft (0.7m), 9s period with SSW swell.
Best Forecast Surf Conditions for Niijima - Awaii this week:
The surf forecast for Niijima - Awaii over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 21) at 6AM. The primary swell is predicted to be 0.7m and 9s period with a secondary swell of 0.5m and 8s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Niijima - Awaii in the next 16 days are 3.0m 16s and forecast to arrive on Tuesday (Aug 25) at 9AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 10s period and expected on Sunday (Aug 23) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Fri 21st Aug) | 2.5ft (0.7m) 9s |
| Best Surf | 6AM (Tue 25th Aug) | 10ft (3.0m) 16s |
| Most Powerful | 9AM (Tue 25th Aug) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Niijima - Awaii over the next 16 days.
Short Range ForecastLight rain (total 8mm), mostly falling on Fri night. Warm (max 27°C on Thu night, min 25°C on Sun morning). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 59mm), heaviest during Wed afternoon. Warm (max 28°C on Tue afternoon, min 25°C on Sun night). Winds increasing (calm on Mon night, strong winds from the SSE by Wed afternoon). | ||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
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) | SSW 9 | SSW 9 | SSW 9 | SSW 10 | SSW 9 | E 11 | E 10 | SW 9 | SW 8 | SSE 18 | SSE 16 | SSE 15 | SSE 14 | S 16 | S 14 | S 14 | SSW 13 | SSW 12 | S 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 64 | 90 | 90 | 132 | 127 | 229 | 214 | 75 | 105 | 644 | 1706 | 1418 | 1614 | 3981 | 3423 | 3021 | 1677 | 874 | 509 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross | cross | cross-on | glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 12:20PM1.17m | 9:31PM1.44m | 10:30PM1.38m | 4:25PM1.37m | 00:35AM1.35m | 4:43PM1.45m | 2:15AM1.41m | 5:04PM1.51m | 3:21AM1.49m | 5:24PM1.56m | |||||||||
Low Tide | 4:37AM0.52m | 3:08PM1.14m | 6:07AM0.52m | 7:43AM0.45m | 8:41PM1.27m | 8:53AM0.36m | 9:42PM1.18m | 9:44AM0.28m | 10:17PM1.06m | 10:26AM0.22m | 10:47PM0.94m | ||||||||
 |  |  |  | | |  | |  | | | |  | | | |  | | | |
 | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — | 5:09 | — | — | 5:09 | — | — | 5:11 | — | — |
 | 6:24 | — | 6:23 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:19 | — | — | 6:17 | — |
mm | — | — | — | 3 | — | — | 3 | — | 2 | 1 | — | — | — | — | 2 | 21 | 9 | 26 | 21 |
Temp °C | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 28 | 27 | 27 | 26 | 28 |
Feels °C | 30 | 29 | 28 | 29 | 29 | 29 | 30 | 30 | 30 | 29 | 30 | 30 | 30 | 32 | 32 | 29 | 25 | 24 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 9 | SSW 9 | SSW 9 | SSW 10 | SSW 9 | E 11 | E 10 | ENE 10 | SW 8 | SSE 18 | SSE 16 | SSE 15 | SSE 14 | S 16 | S 14 | S 14 | SSW 13 | SSW 12 | S 10 |
| kJ | 64 | 90 | 90 | 132 | 127 | 229 | 214 | 163 | 105 | 644 | 1706 | 1418 | 1614 | 3981 | 3423 | 3021 | 1677 | 874 | 509 |
Swell 2 Height (m) Direction Period (s) | ENE 9 | E 8 | E 9 | E 10 | E 10 | SSW 9 | SSW 9 | SW 9 | ENE 10 | SW 9 | SW 10 | SSE 18 | S 18 | E 14 | E 13 | E 13 | SE 9 | SSE 9 | E 12 |
| kJ | 25 | 32 | 40 | 66 | 92 | 106 | 101 | 75 | 123 | 91 | 98 | 972 | 1398 | 320 | 225 | 212 | 125 | 141 | 98 |
Swell 3 Height (m) Direction Period (s) | SE 11 | SE 11 | SE 11 | SE 11 | ENE 13 | SSE 5 | SE 11 | SE 10 | E 12 | ENE 9 | E 9 | E 12 | E 11 | SW 10 | SW 10 | SW 10 | E 13 | E 12 | E 16 |
| kJ | 29 | 30 | 29 | 31 | 53 | 8 | 30 | 27 | 76 | 65 | 57 | 175 | 118 | 35 | 14 | 15 | 153 | 141 | 129 |
Wind waves Height (m) Direction Period (s) | — | — | SE 6 | S 4 | — | — | — | — | ENE 3 | — | — | — | SE 6 | — | — | — | — | — | — |
| kJ | — | — | 8 | 7 | — | — | — | — | 1 | — | — | — | 24 | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 3 | 0 | 141 | 44 | 44 | 44 | 0 | 0 | 41 | 41 | 41 | 101 | 0 | 44 | 141 | 44 | 141 | 141 | 141 |
Best forecast wave conditions in Izu Islands | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Niijima - Awaii Surf forecast
The above surf forecast table for Niijima - Awaii provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Niijima - Awaii can be found by selecting the local surf guide option on the grey menu. Our Niijima - Awaii 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 (Niijima - Awaii) 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 Niijima - Awaii 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.
Niijima - Awaii is 41 km (25 miles) from Oshima. If you plan a holiday in Izu Islands, look for hotels and other accommodation in Oshima. Oshima has rooms for a wide range of budgets as well as car hire and transport links.
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