Sponge bay surf break

Sponge bay surfForecast / Gisborne and Mahia / New Zealand

information circle16 Day Weather and Surf, issued 5 am Sunday 05 Apr 2026 NZST
Forecast update in hr  min  s Forecast update imminent
Sponge bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Sponge bay sea temperature is
18.9° C
(Which is normal for this time of year)

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 (Apr 05) at 9PM. The primary swell is predicted to be 0.8m and 9s period with a secondary swell of 0.3m and 17s. 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 1.7m 11s and forecast to arrive on Wednesday (Apr 08) at 9AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 8s period and expected on Tuesday (Apr 07) at 9PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sun 5th Apr)2.5ft (0.8m) 9s
Best Surf 9AM (Wed 8th Apr)5.5ft (1.7m) 11s
Most Powerful 9AM (Wed 8th Apr)5.5ft (1.7m) 11s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 4mm), mostly falling on Mon afternoon. Very mild (max 18°C on Sun afternoon, min 15°C on Sun morning). Winds increasing (light winds from the NNW on Sun morning, fresh winds from the NE by Tue morning).

Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Wed afternoon. Warm (max 20°C on Wed afternoon, min 16°C on Thu night). Wind will be generally light.

Sunday
05
Monday
06
Tuesday
07
Wednesday
08
Thursday
09
Friday
10
Saturday
11
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
1
1
1
0
0
1
3
2
2
2
1
0
0
0
0
2
0
2
Swell
Height Map
Wave Height (m) & direction (?)
0.2
SSE
0.8
E
0.8
E
1
E
1.2
E
1.3
E
1.3
E
1.4
E
1.1
E
1.7
E
1.5
E
1.4
E
1.2
E
1.2
E
1.1
E
1
E
1
E
1.2
E
1.3
E
1.3
E
1.2
E
Period(s) (?)10991010108812111110101010101010101111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)10110110194313325191225325651496369266266223184192302367396350
Wind
(km/h)
5
NNW
20
NE
15
NE
10
NE
20
ENE
20
NE
25
NE
25
NE
25
NNE
10
N
10
NNE
10
NW
5
NW
10
ESE
10
SW
20
SW
25
SSW
20
SW
5
SSE
15
SE
5
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offoffcross-
off
glasscrosscross-
on
cross-
on
cross-
on
cross-
on
glasscross-
on
glass
High Tide
/ height (m)
8:27PM
1.90
8:36AM
1.84
9:07PM
1.86
9:20AM
1.79
9:49PM
1.82
10:07AM
1.74
10:34PM
1.78
10:55AM
1.71
11:22PM
1.76
11:44AM
1.68
12:11AM
1.75
12:33PM
1.67
1:02AM
1.76
Low Tide
/ height (m)
2:13PM
0.48
2:37AM
0.56
2:51PM
0.53
3:20AM
0.61
3:35PM
0.60
4:05AM
0.65
4:22PM
0.68
4:53AM
0.69
5:12PM
0.74
5:44AM
0.72
6:02PM
0.78
6:37AM
0.74
6:52PM
0.80
Sunday
05
Monday
06
Tuesday
07
Wednesday
08
Thursday
09
Friday
10
Saturday
11
Sunrise6:24--6:26--6:26--6:28--6:28--6:30--6:31--
Sunset-5:54--5:52--5:52--5:50--5:49--5:46--5:45-
cloud
part cloud
part cloud
part cloud
rain showers
rain showers
cloud
cloud
rain showers
cloud
thunderstorm
part cloud
clear
part cloud
cloud
part cloud
part cloud
rain showers
rain showers
clear
rain showers
Rain (mm)
----12--1-1------12-5
Temp. °C171817181717181818192019191918171817181716
Feels °C (?)151415141414131415192019182019131516181616
  • 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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