Surf Forecasts:
Ruby Bay surf forecast from 13 Oct 2026:
- Best quality surf: Thursday 15 Oct, 4AM (local time) - 5ft (1.5m), 7s period, N swell with glassy winds.
- Most powerful swell: Thursday 15 Oct, 4AM (local time) - 5ft (1.5m), 7s period, N swell with 236 kJ wave energy.
- Next surfable swell (1★+): Thursday 15 Oct, 4AM (local time) - 5ft (1.5m), 7s period with N swell.
Best Forecast Surf Conditions for Ruby Bay this week:
The surf forecast for Ruby Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Oct 15) at 4AM. The primary swell is predicted to be 1.5m and 7s period with a secondary swell of 0.1m and 14s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Ruby Bay in the next 16 days are 1.5m 7s and forecast to arrive on Thursday (Oct 15) at 4AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 8s period and expected on Thursday (Oct 15) at 4AM.
| Wave Type | Time (NZDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Thu 15th Oct) | 5ft (1.5m) 7s |
| Best Surf | 4AM (Thu 15th Oct) | 5ft (1.5m) 7s |
| Most Powerful | 4AM (Thu 15th Oct) | 5ft (1.5m) 7s |
Table - best surf conditions forecast for Ruby Bay over the next 16 days.
Short Range ForecastHeavy rain (total 26mm), heaviest during Wed night. Warm (max 20°C on Tue afternoon, min 7°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 15°C on Fri afternoon, min 4°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 13 | Wednesday 14 | Thursday 15 | Friday 16 | Saturday 17 | Sunday 18 | Monday 19 | |||||||||||||||
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) | N 6 | NNW 5 | NW 6 | NNW 6 | NNW 6 | N 6 | N 8 | NNW 7 | N 7 | N 7 | N 7 | NNW 7 | N 12 | N 7 | NW 6 | W 13 | — | N 16 | N 15 | NW 4 | N 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 6 | 64 | 83 | 113 | 0 | 160 | 111 | 0 | 34 | 15 | 8 | 0 | 3 | 1 | 0 | 0 | 0 | 5 | 5 | 4 | 4 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | cross-on | cross-on | on | cross-off | on | cross-off | cross-off | cross-off | off | glassy | on | glassy | glassy | on | off | glassy | on | glassy |
High Tide | 12:25PM4.11m | 00:35AM3.95m | 12:58PM4.04m | 1:10AM3.78m | 1:30PM3.91m | 1:47AM3.58m | 2:03PM3.74m | 2:28AM3.37m | 2:38PM3.52m | 3:18AM3.19m | 3:22PM3.27m | 4:19AM3.06m | 4:24PM3.06m | ||||||||
Low Tide | 6:05PM0.81m | 6:28AM0.84m | 6:36PM0.95m | 7:02AM1.00m | 7:08PM1.12m | 7:39AM1.19m | 7:44PM1.31m | 8:21AM1.38m | 8:27PM1.50m | 9:09AM1.56m | 9:23PM1.69m | 10:07AM1.68m | 10:42PM1.81m | ||||||||
 |  |  |  | |  | | |  | | |  | | | | | | | | | | |
 | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:33 | — | — |
 | — | 7:45 | — | — | 7:45 | — | — | 7:46 | — | — | 7:47 | — | — | 7:49 | — | — | 7:51 | — | — | 7:52 | — |
mm | — | — | — | 3 | 4 | 18 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 20 | 15 | 16 | 16 | 15 | 17 | 16 | 9 | 14 | 15 | 7 | 13 | 13 | 10 | 13 | 13 | 10 | 17 | 16 | 11 |
Feels °C | 17 | 20 | 14 | 16 | 16 | 12 | 14 | 12 | 5 | 11 | 10 | 4 | 9 | 10 | 9 | 10 | 10 | 9 | 15 | 14 | 10 |
Swell 1 Height (m) Direction Period (s) | N 6 | N 5 | NNW 5 | — | — | — | N 8 | NNW 16 | N 7 | N 7 | N 7 | ENE 5 | N 7 | N 7 | — | NW 6 | — | — | N 15 | N 15 | NNW 4 |
| kJ | 6 | 22 | 27 | — | — | — | 111 | 24 | 34 | 15 | 8 | 2 | 1 | 1 | — | 1 | — | — | 5 | 4 | 3 |
Swell 2 Height (m) Direction Period (s) | NNW 16 | NNW 16 | NW 16 | — | — | — | NW 17 | — | NNW 15 | NNW 14 | NNW 14 | NNW 7 | — | — | — | W 13 | — | N 16 | — | — | N 15 |
| kJ | 26 | 25 | 10 | — | — | — | 12 | — | 21 | 41 | 19 | 5 | — | — | — | 3 | — | 5 | — | — | 4 |
Swell 3 Height (m) Direction Period (s) | NNW 9 | NW 9 | N 8 | — | — | — | — | — | NW 15 | SW 3 | N 7 | NW 13 | N 12 | — | NW 6 | — | — | N 16 | — | — | N 15 |
| kJ | 8 | 3 | 1 | — | — | — | — | — | 104 | 2 | 8 | 7 | 3 | — | 1 | — | — | 5 | — | — | 4 |
Wind waves Height (m) Direction Period (s) | — | NNW 5 | NW 6 | NNW 6 | NNW 6 | N 6 | — | NNW 7 | SSW 3 | SW 3 | E 2 | SSW 2 | SSW 3 | NNE 2 | — | — | — | — | — | NW 4 | — |
| kJ | — | 64 | 83 | 113 | 134 | 160 | — | 125 | 2 | 2 | 1 | 1 | 1 | 1 | — | — | — | — | — | 3 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 14 | 125 | 14 | 125 | 129 | 125 | 14 | 116 | 14 | 14 | 146 | 83 | 83 | 252 | 83 | 83 | 125 | 83 | 83 | 125 | 83 |
Best forecast wave conditions in Nelson - Tasman Bay | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
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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 Ruby Bay 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 Ruby Bay Surf forecast
The above surf forecast table for Ruby Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ruby Bay can be found by selecting the local surf guide option on the grey menu. Our Ruby Bay 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 (Ruby Bay) 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 Ruby Bay 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.
Are you planning a holiday in Nelson - Tasman Bay? If you are looking for accommodation near Ruby Bay, camping, hotels and holiday cottages in Nelson - Tasman Bay, consider staying in Nelson which is 17 km (11 miles) away. Alternatively, find information about places to stay and car hire in Blenheim which is 80 km (50 miles) away
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