Surf Forecasts:
Ruby Bay surf forecast from 11 Jul 2026:
- Best quality surf: Tuesday 14 Jul, 12AM (local time) - 4.5ft (1.4m), 7s period, N swell with glassy winds.
- Most powerful swell: Tuesday 14 Jul, 3AM (local time) - 4.5ft (1.4m), 8s period, N swell with 233 kJ wave energy.
- Next surfable swell (1★+): Tuesday 14 Jul, 12AM (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 12AM. 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 3AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 7s period and expected on Tuesday (Jul 14) at 12AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Tue 14th Jul) | 4.5ft (1.4m) 7s |
| Best Surf | 12AM (Tue 14th Jul) | 4.5ft (1.4m) 7s |
| Most Powerful | 3AM (Tue 14th Jul) | 4.5ft (1.4m) 8s |
Table - best surf conditions forecast for Ruby Bay over the next 16 days.
G’day, Rusty here. Let’s get real about Ruby Bay. Right now and right through the next sixteen days, it’s pretty much a no-go. This little point break is sheltered and rarely breaks, and the outlook is one long stretch of flat to ankle-high dribble. The first proper chance of any wave energy pops up on Tuesday 14 July morning with a 3ft north swell, period of 8 seconds and combined energy at 119 (moderate). It’s glassy and you could paddle around, but the wave comment tells you it’s poor surf conditions – the swell is north and this spot wants the wind from the north-west to work.
Water temp was 54° on Saturday, about 0.9° cooler than average for July – nothin’ to write home about.
Between Monday 13 July and Friday 17 July there’s tiny pulses of energy – 3ft on Monday afternoon, 3ft Tuesday arvo, a 4ft north-northwest swell Wednesday arvo – but they all get marked poor. The Wednesday afternoon pulse (4ft, 6 seconds, moderate energy of 132) comes with offshore wind from the southwest, so it’ll be clean, but that short period and straight north direction means it’s not really gonna line up for the point.
From Thursday 18 July onward it dies again. A brief moment on Sunday 19 July morning: 0.7ft swell, but oddly long 11-second period, combined energy only 11 (weak). Still poor. The last half of the outlook is flat or ankle-high. A little bump on 26 July morning: 2ft, 7 seconds, clean with offshore wind, but again, barely enough to ride.
No standouts. The whole window is a bust. The spot rarely breaks anyway, so a blank run like this is normal for Ruby Bay. Not worth the drive. If you’re desperate, the cleanest little dribble might be Wednesday 15 July afternoon when that 4ft swell bumps under offshore wind – but you’ll be fightin’ for a knee-high crumble.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Mon night. Very mild (max 13°C on Tue afternoon, min 3°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 15°C on Fri afternoon, min 6°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Sat 18 | |||||||||||||||
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) | NW 16 | NW 16 | NW 16 | NW 15 | N 15 | N 5 | N 7 | N 8 | N 7 | N 7 | N 7 | NW 16 | NNW 16 | N 6 | N 6 | N 6 | N 5 | NW 14 | NW 14 | NW 18 | ESE 3 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 0 | 0 | 0 | 4 | 18 | 209 | 111 | 104 | 85 | 43 | 0 | 0 | 6 | 3 | 1 | 1 | 0 | 0 | 0 | 5 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | glassy | glassy | glassy | on | glassy | glassy | glassy | glassy | glassy | glassy | glassy | off | glassy | off | off | off | off | off | glassy |
High Tide | 7:27AM3.68m | 8:31PM3.78m | 8:32AM3.83m | 9:28PM4.06m | 9:33AM3.98m | 10:17PM4.29m | 10:29AM4.09m | 11:02PM4.42m | 11:21AM4.15m | 11:45PM4.43m | 12:09PM4.15m | 00:27AM4.34m | 12:54PM4.08m | ||||||||
Low Tide | 1:13AM1.21m | 1:30PM1.24m | 2:13AM1.02m | 2:37PM1.08m | 3:10AM0.84m | 3:39PM0.90m | 4:03AM0.69m | 4:34PM0.75m | 4:53AM0.59m | 5:21PM0.68m | 5:39AM0.58m | 6:03PM0.69m | 6:23AM0.66m | ||||||||
 |  |  |  | | |  | | | | |  | | | | | | | |  | | |
 | — | 7:50 | — | — | 7:50 | — | — | 7:50 | — | — | 7:48 | — | — | 7:48 | — | — | 7:48 | — | — | 7:47 | — |
 | — | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:17 | — | — | 5:19 | — | — | 5:20 |
mm | — | — | — | — | — | — | 6 | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — |
Temp °C | 5 | 9 | 9 | 6 | 10 | 11 | 10 | 12 | 13 | 10 | 13 | 13 | 11 | 12 | 14 | 7 | 14 | 15 | 10 | 9 | 10 |
Feels °C | 2 | 7 | 7 | 4 | 9 | 9 | 9 | 11 | 12 | 9 | 12 | 13 | 10 | 9 | 12 | 4 | 11 | 12 | 6 | 7 | 8 |
Swell 1 Height (m) Direction Period (s) | NW 16 | NW 16 | NW 16 | NW 15 | N 3 | N 5 | N 7 | N 8 | N 7 | N 7 | N 7 | N 6 | N 6 | N 6 | E 3 | NW 15 | NW 14 | — | NNW 4 | NW 18 | NW 18 |
| kJ | 10 | 10 | 10 | 9 | 1 | 18 | 209 | 111 | 104 | 85 | 43 | 36 | 18 | 6 | 1 | 9 | 8 | — | 2 | 12 | 12 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | N 15 | — | — | NW 8 | NW 14 | NNW 12 | NW 17 | NW 16 | NNW 16 | NNW 15 | NNW 15 | — | N 5 | NW 14 | NW 14 | NW 4 | NE 7 |
| kJ | — | — | — | — | 4 | — | — | 97 | 7 | 14 | 70 | 64 | 24 | 22 | 23 | — | 1 | 8 | 8 | 1 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | N 20 | — | NW 19 | — | — | — | ENE 5 | N 6 | N 6 | NE 4 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 8 | — | 14 | — | — | — | 3 | 3 | 1 | 1 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | N 7 | — | NNW 8 | — | — | NNW 6 | — | ESE 3 | — | — | SW 2 | — | SW 2 | — | ESE 3 |
| kJ | — | — | — | — | — | — | 348 | — | 214 | — | — | 85 | — | 2 | — | — | 1 | — | 1 | — | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 83 | 83 | 83 | 83 | 83 | 88 | 0 | 14 | 14 | 14 | 14 | 14 | 14 | 83 | 83 | 38 | 83 | 83 | 115 | 125 | 83 |
Best forecast wave conditions in Nelson - Tasman Bay | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
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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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