
Surf Forecasts:
Sponge bay surf forecast from 4 Jul 2026:
- Best quality surf: Tuesday 7 Jul, 6PM (local time) - 5.5ft (1.7m), 10s period, E swell with glassy winds.
- Most powerful swell: Saturday 11 Jul, 12AM (local time) - 15ft (4.5m), 10s period, S swell with 4,319 kJ wave energy.
- Next surfable swell (1★+): Sunday 5 Jul, 3PM (local time) - 3.5ft (1.0m), 10s period with E swell.
Best Forecast Surf Conditions for Sponge bay this week:
The surf forecast for Sponge bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jul 05) at 3PM. The primary swell is predicted to be 1.0m and 10s period with a secondary swell of 0.1m and 16s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Sponge bay in the next 16 days are 4.5m 10s and forecast to arrive on Saturday (Jul 11) 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 1.6m 7s period and expected on Monday (Jul 06) at 12AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Sun 5th Jul) | 3.5ft (1.0m) 10s |
| Best Surf | 6PM (Tue 7th Jul) | 5.5ft (1.7m) 10s |
| Most Powerful | 12AM (Sat 11th Jul) | 15ft (4.5m) 10s |
Table - best surf conditions forecast for Sponge bay over the next 16 days.
Updates in hr min s Forecast update imminent
Right then, let's have a look at what Sponge Bay has got cookin' for us.
It’s a bit of a mixed bag for the next couple of weeks, to be honest. The first week is lookin' real ordinary, with a lot of wind and chop getting in the way. We’ve got some proper size comin', but the conditions just aren't cooperating for a paddle session. Then, there’s a glimmer of hope heading into the second week.
We kick off Sunday the 5th with a tiny 0.3ft southerly groundswell, period pushin' 16 seconds, but the wind is a messy 16 mph from the NNE. The energy is a weak 8. It’s a no-go. That tiny swell builds a bit on Monday the 6th, up to 4ft from the east, but that 19 mph NE wind is just onshore junk. The combined energy is still weak at 238. Not worth paddlin' for.
Tuesday the 7th has some waves – 4ft east swell – but it's onshore and messy, and Wednesday the 8th sees bigger 6ft swell, but again, the wind is all wrong. By Friday the 10th, the swell is up to 7ft from the SSE, but that 16 mph cross-onshore wind is just choppin' it to bits. The combined energy is moderate at 1124, but the quality is zero. This pattern of onshore wind and rain holds through the weekend right into Monday the 13th.
Alright, now for the good bit. After that messy run, we finally get a window. Monday morning, July 13th, things clean up. We’ve got a solid 4ft swell from the SE, and the wind swings to a light 6 mph WNW cross-offshore. That’s clean surf with a combined energy of 315. This is the first chance at a proper surf.
But the real standout, the one you want to circle on your calendar, is Friday, July 17th. The morning session is callin' for 6ft of swell from the SE with a very long 15-second period. This is proper groundswell energy, and the combined energy is a strong 1496. The wind is a light 6 mph NNW cross-offshore, and conditions are forecast to be excellent for experienced surfers. This big, long-period swell will be breaking a bit straight at a beach break, so look for the points or reefs if you can find ’em, but the power and shape will be there for the crew who knows what they’re doin’. The afternoon looks just as good with offshore winds. That’s the pick of the fortnight by a long shot.
Be mindful that the water temp is about average for the time of year.
After that, Saturday the 18th has a 8ft south-southwest swell but with a short 9-second period, and a gusty WNW wind. It’ll be lumpy and messy, a real handful.
So, bottom line: it’s a lean first week, but that Friday the 17th is the one to aim for.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Mon morning. Very mild (max 15°C on Sun afternoon, min 10°C on Sat night). Winds decreasing (fresh winds from the NE on Mon morning, calm by Mon night). | Days 5-7 Weather SummaryHeavy rain (total 35mm), heaviest during Wed night. Very mild (max 13°C on Wed afternoon, min 10°C on Tue night). Winds increasing (light winds from the NNW on Tue night, strong winds from the SW by Fri afternoon). | ||||||||||||||||||||
Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Sat 11 | |||||||||||||||
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) | E 11 | S 16 | E 10 | E 10 | E 9 | E 10 | E 9 | E 10 | E 10 | E 10 | ESE 11 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SSE 9 | SE 10 | S 10 | SSE 10 | SSE 10 |
Wave Graph | |||||||||||||||||||||
267 | 5 | 202 | 234 | 225 | 301 | 287 | 314 | 440 | 596 | 672 | 551 | 480 | 342 | 312 | 419 | 784 | 1404 | 4319 | 3008 | 1082 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | off | cross-off | cross-off | cross-off | cross | on | cross-off | cross | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 9:34PM1.87m | 9:47AM1.80m | 10:18PM1.91m | 10:29AM1.82m | 10:59PM1.93m | 11:12AM1.84m | 11:39PM1.94m | 11:56AM1.85m | 00:18AM1.93m | 12:42PM1.87m | 00:59AM1.91m | 1:30PM1.89m | 1:45AM1.89m | 2:19PM1.90m | |||||||
Low Tide | 3:52AM0.67m | 3:55PM0.62m | 4:35AM0.64m | 4:37PM0.59m | 5:17AM0.59m | 5:18PM0.57m | 5:59AM0.54m | 6:00PM0.55m | 6:40AM0.49m | 6:45PM0.54m | 7:24AM0.45m | 7:35PM0.54m | 8:10AM0.42m | ||||||||
— | 7:26 | — | — | 7:24 | — | — | 7:24 | — | — | 7:24 | — | — | 7:24 | — | — | 7:24 | — | — | 7:24 | — | |
— | — | 4:58 | — | — | 4:59 | — | — | 4:59 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:01 | |
mm | — | 2 | — | — | 4 | 4 | — | — | — | — | — | 5 | 17 | 3 | 3 | — | 5 | 2 | 6 | 4 | 4 |
Temp °C | 12 | 13 | 15 | 11 | 14 | 12 | 11 | 12 | 12 | 10 | 12 | 13 | 12 | 12 | 12 | 13 | 13 | 13 | 12 | 12 | 12 |
Feels °C | 8 | 10 | 12 | 9 | 8 | 9 | 9 | 10 | 10 | 8 | 9 | 9 | 8 | 8 | 7 | 7 | 8 | 5 | 3 | 4 | 4 |
Swell 1 Height (m) Direction Period (s) | E 11 | E 10 | E 10 | E 10 | E 9 | E 10 | E 9 | E 10 | E 10 | E 10 | ESE 11 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SE 10 | SSE 10 | SSE 10 | ESE 12 |
267 | 296 | 202 | 234 | 225 | 301 | 287 | 314 | 440 | 596 | 672 | 551 | 480 | 342 | 312 | 419 | 276 | 1404 | 1946 | 1333 | 770 | |
Swell 2 Height (m) Direction Period (s) | S 12 | S 12 | S 16 | S 16 | S 15 | S 21 | SSE 19 | SSE 17 | SSE 10 | SSE 10 | SSE 14 | SSE 14 | SSE 13 | S 6 | S 6 | SSE 8 | SSE 18 | E 10 | — | ESE 9 | S 20 |
3 | 3 | 5 | 5 | 4 | 8 | 69 | 58 | 32 | 31 | 41 | 37 | 31 | 41 | 31 | 55 | 64 | 71 | — | 220 | 31 | |
Swell 3 Height (m) Direction Period (s) | — | S 16 | S 10 | — | S 22 | S 13 | S 19 | S 10 | SSE 16 | SSE 16 | SSE 9 | SSE 8 | S 19 | SSE 12 | SSE 10 | SSE 14 | — | — | — | — | — |
— | 5 | 2 | — | 9 | 4 | 62 | 8 | 51 | 48 | 17 | 7 | 7 | 14 | 18 | 41 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NE 6 | NE 6 | NE 7 | NE 7 | NE 9 | NE 8 | — | — | — | — | SSW 4 | SSW 4 | SW 3 | SSW 6 | SSW 6 | S 8 | SSE 9 | SSE 17 | S 10 | SSE 10 | SSE 10 |
50 | 170 | 114 | 219 | 370 | 367 | — | — | — | — | 8 | 9 | 4 | 84 | 61 | 230 | 784 | 96 | 4319 | 3008 | 1082 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 1 | 0 | 0 | 88 | 0 | 0 | 1 | 5 | 0 | 3 | 10 | 10 | 10 | 42 | 42 | 53 | 122 | 125 | 125 | 68 |
Best forecast wave conditions in Gisborne and Mahia | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
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Information about the Sponge bay Surf forecast
The above surf forecast table for Sponge bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Sponge bay can be found by selecting the local surf guide option on the grey menu. Our Sponge 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 (Sponge 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 Sponge 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 Gisborne and Mahia? If you are looking for accommodation near Sponge bay, camping, hotels and holiday cottages in Gisborne and Mahia, consider staying in Gisborne which is 8 km (5 miles) away.










