Surf Forecasts:
Ruby Bay surf forecast from 7 Jul 2026:
- Best quality surf: Tuesday 14 Jul, 12PM (local time) - 4.5ft (1.4m), 7s period, N swell with glassy winds.
- Most powerful swell: Tuesday 14 Jul, 6PM (local time) - 4.5ft (1.4m), 8s period, N swell with 217 kJ wave energy.
- Next surfable swell (1★+): Tuesday 14 Jul, 12PM (local time) - 4.5ft (1.4m), 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 Tuesday (Jul 14) at 12PM. The primary swell is predicted to be 1.4m and 7s period. 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 1.4m 8s and forecast to arrive on Tuesday (Jul 14) at 6PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 7s period and expected on Monday (Jul 13) at 9PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Tue 14th Jul) | 4.5ft (1.4m) 7s |
| Best Surf | 12PM (Tue 14th Jul) | 4.5ft (1.4m) 7s |
| Most Powerful | 6PM (Tue 14th Jul) | 4.5ft (1.4m) 8s |
Table - best surf conditions forecast for Ruby Bay over the next 16 days.
Alright, let me break down what’s cookin’ at Ruby Bay over the next 16 days.
Honestly, mate, this stretch is a tough one for paddle surfers. Ruby Bay is a point break, sheltered and rarely breaks, and this forecast really shows that. There are long gaps where there’s simply nothing to ride.
The first bit of surf appears on Wednesday, July 8th, but it’s just tiny 0.3ft swell from the north with a short 8-second period. The combined swell energy is only 1 (weak). Too small to do anything with, even though the wind’s light and glassy in the arvo.
Thursday the 9th through to Sunday the 12th of July? Dead flat. Zero swell. Not a ripple. You’d be better off bringin’ a book.
Monday, July 13th has a bit of a pulse – a 1ft north swell with a period of just 4 seconds in the morning, energy at 10 (weak). Afternoon sees a bump to 4ft from the NNW, period 6 seconds, energy 130 (moderate). But the wave comment says "poor surf conditions." Tuesday the 14th is the only time we see anything close to rideable: 4ft to 5ft north swell, period 7 seconds, combined energy climbing from 154 to 212 (moderate). Winds are glassy or very light, so the surface would be clean. But at 5ft, the break is inconsistent and rarely breaks, and it’s got a "surfable but very ordinary conditions" note with a score of just 1.
From Wednesday the 15th right through to the end of the forecast on Thursday the 23rd of July, it’s all sub-3ft, short-period junk again, or just flat. A tiny 0.3ft, 18-second long-period groundswell shows up on Wednesday the 22nd, but it’s only 6 energy – a whisper, not a wave.
If you’re a beginner, the tiny stuff on offer won’t hurt, but it won’t thrill you either. For anyone else? This stretch looks more like a kite-surfing setup if there’s any wind, but for a standard surfer, there’s just no standout. No real standout quality here at all.
The water temp is about average for the time of year.
Hang in there, Ruby Bay – forecasts can change.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Tue night. Very mild (max 14°C on Wed afternoon, min 2°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 11°C on Mon afternoon, min 3°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tue 14 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | N 7 | N 8 | N 8 | NW 17 | NNW 16 | NW 15 | NW 19 | NW 18 | NW 16 | NW 21 | N 14 | NW 17 | NW 16 | NW 16 | NW 16 | NW 15 | N 4 | NNW 6 | N 7 | N 7 | N 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 4 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 6 | 74 | 135 | 146 | 212 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | glassy | cross-off | cross-off | glassy | cross-off | off | glassy | off | off | glassy | off | glassy | glassy | off | off | glassy | glassy | glassy | glassy |
High Tide | 3:09AM3.68m | 3:42PM3.45m | 4:04AM3.59m | 4:38PM3.42m | 5:08AM3.55m | 5:51PM3.42m | 6:17AM3.58m | 7:17PM3.54m | 7:27AM3.68m | 8:31PM3.78m | 8:32AM3.83m | 9:28PM4.06m | 9:33AM3.98m | ||||||||
Low Tide | 9:04AM1.26m | 9:36PM1.43m | 10:03AM1.33m | 10:53PM1.46m | 11:09AM1.37m | 00:08AM1.38m | 12:19PM1.34m | 1:13AM1.21m | 1:30PM1.24m | 2:13AM1.02m | 2:37PM1.08m | 3:10AM0.84m | 3:39PM0.90m | ||||||||
 |  |  |  | | |  | | | | | | | | | | | | | | | |
 | — | 7:52 | — | — | 7:52 | — | — | 7:50 | — | — | 7:50 | — | — | 7:50 | — | — | 7:50 | — | — | 7:50 | — |
 | — | — | 5:12 | — | — | 5:13 | — | — | 5:14 | — | — | 5:14 | — | — | 5:15 | — | — | 5:15 | — | — | 5:16 |
mm | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 17 | — | — |
Temp °C | 10 | 12 | 14 | 9 | 11 | 12 | 4 | 8 | 9 | 4 | 9 | 10 | 4 | 8 | 9 | 5 | 10 | 11 | 10 | 13 | 14 |
Feels °C | 7 | 10 | 13 | 6 | 8 | 9 | 0 | 5 | 6 | 1 | 7 | 7 | 1 | 6 | 7 | 2 | 9 | 9 | 9 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | SE 4 | — | — | NW 17 | NNW 16 | ENE 5 | ENE 4 | NW 18 | NW 16 | — | NW 18 | NW 17 | NW 16 | NW 16 | NW 16 | NW 15 | N 4 | N 6 | N 7 | N 7 | — |
| kJ | 5 | — | — | 12 | 24 | 2 | 2 | 12 | 10 | — | 12 | 12 | 10 | 10 | 10 | 9 | 6 | 52 | 135 | 146 | — |
Swell 2 Height (m) Direction Period (s) | N 7 | N 8 | N 8 | — | ENE 5 | NW 15 | NW 19 | — | — | NW 16 | — | — | — | — | — | — | N 15 | N 14 | — | N 20 | — |
| kJ | 4 | 1 | 1 | — | 2 | 9 | 14 | — | — | 10 | — | — | — | — | — | — | 4 | 4 | — | 8 | — |
Swell 3 Height (m) Direction Period (s) | ENE 4 | — | — | E 7 | E 8 | — | NW 14 | — | — | NW 21 | N 14 | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | — | — | 1 | 1 | — | 8 | — | — | 18 | 4 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 3 | — | — | SSW 2 | S 3 | SSE 3 | S 3 | — | — | — | — | — | — | — | — | — | — | NNW 6 | NNW 7 | NNW 7 | N 7 |
| kJ | 2 | — | — | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | 74 | 225 | 276 | 212 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 83 | 83 | 83 | 83 | 38 | 84 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 88 | 129 | 7 | 7 | 0 |
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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