
Surf Forecasts:
Sponge bay surf forecast from 23 Jul 2026:
- Best quality surf: Tuesday 28 Jul, 12AM (local time) - 5.5ft (1.7m), 13s period, ESE swell with cross-offshore winds.
- Most powerful swell: Tuesday 28 Jul, 6AM (local time) - 5.5ft (1.7m), 13s period, ESE swell with 1,045 kJ wave energy.
- Next surfable swell (1★+): Friday 24 Jul, 6PM (local time) - 1.5ft (0.5m), 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 Friday (Jul 24) at 6PM. The primary swell is predicted to be 0.5m and 10s period with a secondary swell of 0.2m and 9s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Sponge bay in the next 16 days are 1.7m 13s and forecast to arrive on Tuesday (Jul 28) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 7s period and expected on Saturday (Jul 25) at 3AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Fri 24th Jul) | 1.5ft (0.5m) 10s |
| Best Surf | 12AM (Tue 28th Jul) | 5.5ft (1.7m) 13s |
| Most Powerful | 6AM (Tue 28th Jul) | 5.5ft (1.7m) 13s |
Table - best surf conditions forecast for Sponge bay over the next 16 days.
The Lowdown
Righto, grab a coffee and settle in, let’s talk about the next couple of weeks at Sponge Bay. It’s a bit of a mixed bag, but there are a few windows that’ll get the blood pumping.
Straight up, we’re in a quiet spell. The first few days are small and messy, not really worth paddling out for. But by Tuesday morning, July 28th, things start to wake up. That’s where the first real stand-out sits.
Tuesday morning, July 28th is your pick. We’ve got a clean 6 ft swell rolling in from the ESE, with a solid 13-second period behind it. That’s proper groundswell energy, and it’s coming in with light cross-offshore winds. The combined energy is sitting at 1041, which is a solid, moderate push. The water temp is about average for this time of year. It’s clean, it’s got shape, and it’s a good, strong option for a surf.
Wednesday, July 29th is another good one. The morning is clean with a 5 ft ESE swell and a 12-second period, and the afternoon turns glassy with offshore winds from the N. The energy is solid (692-819), and the conditions are lovely. That afternoon session is the best of the two.
Then we hit a bit of a lull. The end of July and start of August drop off again, with weaker, smaller swell and onshore winds. Not worth the effort.
Saturday, August 1st is a real standout, but with a big caveat. The morning sees a 7 ft S swell (8 seconds, moderate energy at 1130) with clean cross-offshore winds. That’s a good, punchy wave. But the afternoon? That’s for experts only. The swell jumps to 10 ft from the S, with a 10-second period, and the combined energy rockets to 3080. That’s a huge, powerful swell. It’s too big for this spot for most, and the wind and tide are favorable, but it’s a beast. If you’re experienced and you know this break, it’s going to be a day to remember. For everyone else, give it a wide berth.
Sunday, August 2nd is a great follow-up. The morning is clean with a 8 ft S swell (10 seconds, 1530 energy) – that’s excellent for experienced surfers. The afternoon drops to 6 ft, still clean, and a solid session for anyone comfortable in the size.
After that, it fades again. A few days of small, clean conditions but nothing that’ll get you excited. Then Thursday, August 6th morning pops up with a clean 6 ft SSE swell and a very long 15-second period. That’s proper groundswell, lots of energy (1232), and it’ll be clean and lined up. The long period means it’ll be a bit more walled up at the beach, but it’s a good one for the point.
Overall, the best of the bunch is Tuesday morning, July 28th for a solid, all-round session, and Sunday, August 2nd for the experienced crew looking for a bit more power. The long-range stuff on August 6th is promising, but you know how it is – a week out, keep an eye on it.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sat night. Very mild (max 15°C on Fri morning, min 8°C on Thu night). Winds increasing (light winds from the NNW on Fri morning, fresh winds from the SW by Sat night). | Days 5-7 Weather SummaryMostly dry. Very mild (max 15°C on Wed afternoon, min 6°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | ||||||||||||||
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) | SSE 11 | SSE 10 | E 8 | E 11 | E 12 | E 12 | SSW 7 | S 8 | S 8 | ESE 13 | ESE 13 | SE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 12 | ESE 13 | ESE 12 |
Wave Graph | |||||||||||||||||||
23 | 19 | 21 | 82 | 172 | 171 | 674 | 588 | 392 | 298 | 461 | 828 | 975 | 972 | 972 | 799 | 666 | 745 | 510 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | cross-off | cross | cross-on | cross-on | on | cross | cross | cross-on | cross-off | cross-off | cross | cross-off | cross-off | off | cross-off |
High Tide | 1:10AM1.87m | 1:42PM1.82m | 1:52AM1.78m | 2:25PM1.76m | 2:39AM1.70m | 3:12PM1.71m | 3:34AM1.65m | 4:09PM1.68m | 4:36AM1.63m | 5:20PM1.69m | 5:36AM1.66m | 6:18PM1.74m | |||||||
Low Tide | 7:32AM0.62m | 7:52PM0.75m | 8:14AM0.67m | 8:41PM0.79m | 9:00AM0.72m | 9:33PM0.82m | 9:52AM0.75m | 10:32PM0.84m | 10:51AM0.76m | 11:34PM0.83m | 11:47AM0.74m | 00:30AM0.80m | |||||||
— | 7:16 | — | — | 7:16 | — | — | 7:15 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | |
— | — | 5:10 | — | — | 5:12 | — | — | 5:13 | — | — | 5:14 | — | — | 5:14 | — | — | 5:15 | — | |
mm | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 9 | 15 | 15 | 13 | 13 | 13 | 10 | 10 | 10 | 8 | 10 | 11 | 7 | 10 | 10 | 8 | 12 | 15 | 10 |
Feels °C | 5 | 10 | 10 | 9 | 7 | 6 | 2 | 4 | 4 | 3 | 5 | 5 | 3 | 8 | 7 | 5 | 8 | 11 | 5 |
Swell 1 Height (m) Direction Period (s) | ENE 5 | ENE 6 | E 8 | E 11 | E 12 | E 12 | S 7 | SSE 8 | SSE 8 | SSE 8 | ESE 13 | SE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 12 | ESE 13 | ESE 12 |
8 | 7 | 21 | 82 | 172 | 171 | 223 | 183 | 197 | 153 | 461 | 828 | 975 | 972 | 972 | 799 | 666 | 745 | 510 | |
Swell 2 Height (m) Direction Period (s) | SSE 11 | SSE 10 | SSE 10 | SSE 9 | SE 18 | SE 17 | E 11 | ESE 14 | ESE 13 | ESE 13 | SSE 8 | S 8 | S 11 | SSW 8 | SSW 10 | SSW 10 | SW 10 | SSW 14 | S 17 |
23 | 19 | 9 | 8 | 13 | 77 | 116 | 233 | 384 | 298 | 98 | 228 | 23 | 69 | 19 | 22 | 26 | 37 | 149 | |
Swell 3 Height (m) Direction Period (s) | ESE 11 | ESE 10 | ESE 11 | ENE 4 | SE 13 | S 8 | ESE 16 | E 12 | S 15 | S 14 | S 14 | SSE 10 | SSW 11 | — | — | — | — | SSW 14 | — |
11 | 10 | 12 | 2 | 27 | 1 | 166 | 99 | 17 | 15 | 15 | 58 | 25 | — | — | — | — | 37 | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | NNE 3 | NW 3 | SW 3 | SSW 7 | S 8 | S 8 | — | — | — | — | — | — | — | — | — | — |
— | — | — | 1 | 1 | 1 | 674 | 588 | 392 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 3 | 36 | 3 | 0 | 1 | 10 | 68 | 10 | 133 | 3 | 1 | 10 | 0 | 0 | 44 | 0 | 0 | 0 | 3 |
Best forecast wave conditions in Gisborne and Mahia | |||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










