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Surf Forecasts:

Ruby Bay surf break

Ruby Bay surfForecast / Nelson – Tasman Bay / New Zealand

information circle12 Day Weather and Surf, issued 5 am Tuesday 26 Aug 2025 NZST
Forecast update in hr  min  s Forecast update imminent
Ruby Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Ruby Bay sea temperature is
11.5° C
 (Which is slightly cooler than normal)

Best Forecast Surf Conditions for Ruby Bay this week:

The surf forecast for Ruby Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 31) at 3AM. The primary swell is predicted to be 1.6m and 9s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Ruby Bay in the next 12 days are 1.8m 9s and forecast to arrive on Sunday (Aug 31) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 10s period and expected on Sunday (Aug 31) at 3AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Sun 31st Aug)5ft (1.6m) 9s
Best Surf 3AM (Sun 31st Aug)5ft (1.6m) 9s
Most Powerful12AM (Sun 31st Aug)6ft (1.8m) 9s

Table - best surf conditions forecast for Ruby Bay over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 6mm), mostly falling on Thu afternoon. Very mild (max 14°C on Thu afternoon, min 5°C on Tue night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 28mm), heaviest during Sat night. Very mild (max 13°C on Sat afternoon, min 6°C on Sun afternoon). Winds increasing (calm on Fri night, fresh winds from the N by Sat night).

Tuesday
26
Wednesday
27
Thursday
28
Friday
29
Saturday
30
Sunday
31
Monday
01
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.2
N
0.1
NW
0.2
N
0.3
N
0.2
N
0.1
N
0.1
N
0.9
NNW
0.9
N
1.6
NW
0.8
N
0.8
NNW
1.5
NNW
1.5
NNW
1.8
N
1.2
N
0.6
N
0.9
NNW
0.9
NNW
0.9
NNW
1.6
NW
Period(s) (?)5146121316105788127791091414148
Wave
Graph
(?)Metric surfscale
Energy (?)2052713723786090000568290520000
Wind
(km/h)
5
SW
5
NE
10
SW
5
SSW
10
NNE
5
SW
5
W
10
N
5
SW
5
W
10
WSW
5
SW
5
SW
10
NNW
30
N
20
WSW
25
WSW
15
WSW
10
WSW
15
W
20
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassonoffoffonoffglasscross-
on		offcross-
off		offoffglasscross-
on		cross-
on		offcross-
off		cross-
off		offcross-
off		off
High Tide
/ height (m)
11:52AM
4.01
12:05AM
4.08
12:25PM
3.95
12:37AM
3.96
12:57PM
3.85
1:11AM
3.79
1:30PM
3.71
1:45AM
3.59
2:04PM
3.56
2:25AM
3.36
2:41PM
3.37
3:15AM
3.14
3:27PM
3.17
Low Tide
/ height (m)
5:39PM
0.77
5:56AM
0.79
6:06PM
0.86
6:28AM
0.92
6:34PM
1.02
7:01AM
1.07
7:04PM
1.22
7:36AM
1.25
7:40PM
1.45
8:17AM
1.44
8:29PM
1.68
9:07AM
1.63
9:46PM
1.85
Tuesday
26
Wednesday
27
Thursday
28
Friday
29
Saturday
30
Sunday
31
Monday
01
Sunrise7:01--7:01--6:58--6:58--6:56--6:54--6:52--
Sunset-5:57--5:58--5:59--6:00--6:00--6:00--6:01-
clear
clear
clear
clear
clear
part cloud
cloud
light rain
rain showers
rain showers
rain showers
part cloud
cloud
light rain
rain showers
rain showers
rain showers
clear
rain showers
rain showers
clear
Rain (mm)
-------4241--11822-21-
Temp. °C121271312713141110108111312988101110
Feels °C (?)101051195101188869117323664
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for Nelson - Tasman Bay

  1. Lovely surf conditions on the west coast on Sunday with blue skies, almost no wind, and head-high sets. A cold start but it soon felt warm in the sunshine. Monday and Tuesday forecast about the same.

    37 hours 6 minutes ago Anatori River, 83 km away
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Actual: 37 min ago

4 km/h
W
Clean
Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

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.

View detailed surf forecast for Ruby Bay at:
surf-forecast.com

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 12 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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