Surf Forecasts:
Rutaki Passage surf forecast from 12 Aug 2026:
- Best quality surf: Thursday 13 Aug, 11AM (local time) - 4.5ft (1.3m), 13s period, S swell with cross-offshore winds.
- Most powerful swell: Wednesday 19 Aug, 8AM (local time) - 13ft (4.0m), 16s period, SW swell with 7,184 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 11AM (local time) - 4.5ft (1.3m), 13s period with S swell.
Best Forecast Surf Conditions for Rutaki Passage this week:
The surf forecast for Rutaki Passage over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 13) at 11AM. The primary swell is predicted to be 1.3m and 13s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Rutaki Passage in the next 16 days are 4.0m 16s and forecast to arrive on Wednesday (Aug 19) at 8AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 8s period and expected on Wednesday (Aug 12) at 11AM.
| Wave Type | Time (-10) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Thu 13th Aug) | 4.5ft (1.3m) 13s |
| Best Surf | 11AM (Thu 13th Aug) | 4.5ft (1.3m) 13s |
| Most Powerful | 8AM (Wed 19th Aug) | 13ft (4.0m) 16s |
Table - best surf conditions forecast for Rutaki Passage over the next 16 days.
Short Range ForecastLight rain (total 4mm), mostly falling on Wed morning. Warm (max 22°C on Wed morning, min 21°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Mon morning. Warm (max 23°C on Mon morning, min 21°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
AM | PM | 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) | S 15 | S 16 | S 14 | S 13 | SSW 13 | S 12 | SSW 12 | SSW 11 | SW 18 | SW 16 | S 10 | S 10 | SSE 16 | SSE 15 | SSE 13 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SW 14 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1879 | 1545 | 1077 | 609 | 515 | 309 | 236 | 217 | 95 | 85 | 138 | 98 | 362 | 305 | 402 | 436 | 528 | 545 | 532 | 2885 | 4078 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross | cross-on | on | on | on |
High Tide | 8:30AM0.76m | 8:57PM0.63m | 9:15AM0.73m | 9:43PM0.62m | 10:00AM0.67m | 10:27PM0.59m | 10:46AM0.59m | 11:14PM0.55m | 11:33AM0.50m | 00:03AM0.50m | 12:25PM0.41m | 00:58AM0.46m | 1:25PM0.34m | 2:01AM0.43m | |||||||
Low Tide | 2:33PM-0.20m | 2:44AM-0.13m | 3:17PM-0.16m | 3:31AM-0.10m | 4:01PM-0.11m | 4:21AM-0.04m | 4:47PM-0.04m | 5:13AM0.02m | 5:35PM0.04m | 6:12AM0.09m | 6:28PM0.11m | 7:19AM0.14m | 7:30PM0.16m | ||||||||
 | |  |  | |  | | | |  | | | | |  | |  | | | | | |
 | 7:03 | — | — | 7:03 | — | — | 7:03 | — | — | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — |
 | — | 6:23 | — | — | 6:23 | — | — | 6:23 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:25 | — |
mm | 1 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — |
Temp °C | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 22 | 21 | 20 |
Feels °C | 19 | 20 | 19 | 21 | 23 | 21 | 18 | 19 | 19 | 18 | 21 | 19 | 21 | 21 | 20 | 22 | 22 | 22 | 21 | 19 | 17 |
Swell 1 Height (m) Direction Period (s) | S 15 | S 16 | S 14 | S 13 | E 8 | S 12 | SSW 12 | SSW 11 | SSW 11 | SSW 10 | E 8 | E 7 | E 8 | E 7 | SSE 13 | SSE 12 | SSE 12 | SSW 16 | SSW 16 | SW 14 | SSE 13 |
| kJ | 1879 | 1545 | 1077 | 609 | 205 | 309 | 236 | 217 | 95 | 85 | 161 | 121 | 90 | 87 | 402 | 288 | 250 | 545 | 532 | 2885 | 154 |
Swell 2 Height (m) Direction Period (s) | ESE 13 | ESE 13 | ESE 12 | E 8 | SSW 13 | ESE 12 | SE 11 | ESE 11 | S 11 | S 11 | S 10 | S 10 | SSE 10 | SSE 15 | E 7 | E 7 | SSW 17 | SSE 11 | E 7 | E 7 | E 7 |
| kJ | 95 | 93 | 85 | 228 | 515 | 55 | 31 | 23 | 85 | 62 | 138 | 98 | 159 | 305 | 82 | 82 | 528 | 176 | 54 | 40 | 28 |
Swell 3 Height (m) Direction Period (s) | NNE 12 | NNE 12 | NNE 11 | ESE 12 | ESE 12 | SSW 16 | SSW 19 | NNE 10 | SW 18 | SW 16 | SSW 16 | SW 16 | SSE 16 | SSE 9 | SSW 18 | SSW 18 | ENE 7 | E 7 | SSE 11 | SSE 14 | WNW 12 |
| kJ | 14 | 14 | 13 | 82 | 56 | 26 | 37 | 9 | 80 | 69 | 105 | 69 | 362 | 110 | 127 | 436 | 89 | 68 | 95 | 121 | 28 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | E 8 | — | — | E 8 | E 8 | E 8 | E 9 | E 9 | — | — | — | — | — | — | — | W 4 | WSW 8 | — | SW 14 |
| kJ | 377 | 393 | 309 | — | — | 204 | 195 | 171 | 209 | 215 | — | — | — | — | — | — | — | 9 | 113 | — | 4078 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1508 | 1508 | 1379 | 0 | 0 | 6 | 1124 | 1161 | 1379 | 1124 | 1508 | 1050 | 0 | 0 | 0 | 1379 | 1379 | 9 | 9 | 9 | 1002 |
Best forecast wave conditions in Cook-Islands - Rarotonga | |||||||||||||||||||||
Best forecast wave conditions in Cook Islands | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Rutaki Passage 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 Rutaki Passage Surf forecast
The above surf forecast table for Rutaki Passage provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Rutaki Passage can be found by selecting the local surf guide option on the grey menu. Our Rutaki Passage 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 (Rutaki Passage) 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 Rutaki Passage 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.
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