Sponge bay Surf Break

Lat Long: 38.70° S 178.06° E

Sponge bay Surf Forecast and Surf Report

Issued: 11 am 22 Jul 2026 (local time)

Forecast update in  hr  min

Today's Sponge bay sea temperature is
12.7° C
1.7° 

Sponge bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Sponge bay surf forecast from 22 Jul 2026:

  • Best quality surf: Sunday 26 Jul, 3AM (local time) - 11ft (3.5m), 12s period, SSW swell with cross-shore winds.
  • Most powerful swell: Sunday 26 Jul, 3AM (local time) - 11ft (3.5m), 12s period, SSW swell with 3,806 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 22 Jul, 9PM (local time) - 2.5ft (0.8m), 13s period with SSE 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 Wednesday (Jul 22) at 9PM. The primary swell is predicted to be 0.8m and 13s period with a secondary swell of 0.4m and 10s. 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 3.5m 12s and forecast to arrive on Sunday (Jul 26) at 3AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 6s period and expected on Saturday (Jul 25) at 3AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Wed 22nd Jul)2.5ft (0.8m) 13s
Best Surf 3AM (Sun 26th Jul)11ft (3.5m) 12s
Most Powerful 3AM (Sun 26th Jul)11ft (3.5m) 12s

Table - best surf conditions forecast for Sponge bay over the next 16 days.


The Lowdown

Alright, mate, Rusty here. Let’s have a look at what’s on the cards for Sponge Bay.

Straight up, the next week and a half is a bit of a mixed bag. We’re seeing a few windows of clean, rideable swell, but there are also some wild, windy days you’ll want to dodge. The water is sitting at 55°, which is a touch colder than you’d expect for this time of year – a bit of a shock to the system if you’re not rugged up in a good steamer.

The standout is actually shaping up to be Wednesday, the 29th of July. That afternoon session at Sponge Bay is looking real nice. We’ve got a clean 5ft swell rolling in from the ESE with a solid period of 13 seconds, and the wind is almost nothing out of the WNW. That’s cross-offshore and glassy, so you’re looking at some proper, clean lines. The energy is a solid 992 (moderate), and it’s not going to be a zoo. The morning is also decent, but the afternoon is where it’s at.

Before that, the 22nd of July (Wednesday) is your next best bet. Morning has a 3ft SSE swell at 13 seconds, with a light WNW cross-offshore breeze. The water’s a bit colder, but the conditions are clean and the energy is moderate (299). It’s a good, easy paddle, but don’t expect anything too big.

Now, we’ve got to talk about the elephant in the room. From the 26th of July onwards, things get woolly. The swell jumps up, but the wind comes in hard from the south and southwest. That big 6ft to 8ft swell on the 26th and 27th is going to be blown-out and choppy. It’s a beach and reef setup, so with that strong onshore wind, it’s actually looking more interesting for a kite surfer than a paddle surfer. The energy is huge (1178 to 2226), but the quality is poor.

Further out, the 1st of August brings a massive, angry swell – 10ft to 12ft from the SSW – but it’s pinned to 28 mph onshore winds. That’s a big, messy, dangerous mess. That’s for experts only, and even then, it’s a full-on, heavy day. The 2nd of August is even bigger, with an 18ft swell, but the same story with the wind. It’s a pass.

The 3rd of August (Monday) might offer a slight reprieve, with an 8ft SSW swell dropping, but the wind is still side-onshore. It’s marginal, and the period is a short 9 seconds, so the waves won’t have much push.

The 4th of August (Tuesday) morning is a nice little clean-up. 4ft from the SE, a light NW cross-off breeze, and clean conditions. The energy is moderate (533), but it’s a solid, fun morning surf.

The rest of the forecast is pretty ordinary – small, weak, or blown out. The 5th and 6th of August are mostly small, clean but tiny, or onshore and messy.

So, to wrap it up: lock in the afternoon of the 29th of July for the best waves. The 22nd of July morning is a solid second option. The middle of the second week is a write-off, but the 4th of August morning might give you a little clean-up set. Keep an eye on the charts, but for now, it’s a waiting game.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Fri night. Very mild (max 14°C on Thu afternoon, min 7°C on Wed morning). Wind will be generally light.

Days 4-6 Weather Summary

Some drizzle, heaviest during Sun afternoon. Very mild (max 13°C on Sat morning, min 5°C on Sun night). Winds decreasing (fresh winds from the WSW on Sat afternoon, light winds from the WSW by Sun morning).

Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
1
1
1
0
0
0
1
0
0
2
2
0
0
1
0
0
2
0
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SSE
13
0.8
SSE
12
0.8
SSE
13
0.5
SSE
12
0.4
SSE
12
0.3
SSE
11
0.3
SSE
10
0.2
ESE
11
0.7
E
12
0.8
E
11
0.8
E
11
2.5
SSW
11
1.8
SSE
12
2.4
S
11
2.5
S
9
1.3
ESE
13
1.4
ESE
14
1.4
ESE
14
1.4
ESE
14
1.4
ESE
14
1.7
ESE
13
Wave Graph
Metric surfscale
Energy kJ
257
187
189
86
56
23
19
13
138
152
151
1403
887
1338
1062
555
746
704
735
693
961
Wind (km/h)
10
WNW
5
ENE
10
NW
15
NW
15
NE
20
NW
15
NNW
20
NNW
20
NNE
20
WNW
35
WSW
20
W
10
WSW
25
SSW
25
WSW
15
WSW
25
SSW
25
WSW
10
W
20
SSW
15
WNW
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
off
cross-off
cross-on
cross
cross
cross-on
cross-on
cross
cross-on
cross-on
cross
on
cross-off
High Tide
12:13PM1.94m
00:29AM1.96m
12:59PM1.88m
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
Low Tide
6:19PM0.64m
6:49AM0.58m
7:05PM0.70m
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
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
rain showers
part cloud
clear
part cloud
cloud
rain showers
clear
cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:18
7:16
7:16
7:16
7:15
7:13
7:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:09
5:09
5:10
5:12
5:13
5:14
5:14
 mm
1
1
Temp °C
10
11
9
12
14
9
14
14
14
13
12
8
8
9
8
10
11
8
11
11
8
Feels °C
8
9
6
8
10
5
9
9
9
7
3
1
5
3
2
3
4
1
6
5
4
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

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