Sponge bay Surf Forecast

/ Gisborne and Mahia (37 surf breaks) /

New Zealand (466 surf breaks) / Lat Long: (38.70° S 178.06° E)

Surf Forecasts:

Sponge bay surfForecast / Gisborne and Mahia / New Zealand

12 Day Weather and Surf, issued 6 am Wednesday 19 Nov 2025 NZDT

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 16.8° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Sponge bay this week:

The surf forecast for Sponge bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Nov 20) at 1AM. The primary swell is predicted to be 1.5m and 10s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Sponge bay in the next 12 days are 1.7m 10s and forecast to arrive on Wednesday (Nov 26) at 1PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 10s period and expected on Thursday (Nov 20) at 1AM.

Wave Type	Time (NZDT) & Date	Wave Height & Period
Next good surf (1 star+)	1AM (Thu 20th Nov)	5ft (1.5m) 10s
Best Surf	1AM (Wed 26th Nov)	6ft (1.9m) 7s
Most Powerful	1PM (Wed 26th Nov)	5.5ft (1.7m) 10s

Table - best surf conditions forecast for Sponge bay over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Light rain (total 5mm), mostly falling on Wed night. Warm (max 26°C on Thu morning, min 17°C on Fri night). Winds decreasing (fresh winds from the NE on Wed morning, light winds from the E by Thu morning).									Days 3-6 Weather Summary Mostly dry. Very mild (max 18°C on Sat morning, min 13°C on Sat night). Wind will be generally light.
	Wednesday 19			Thursday 20			Friday 21			Saturday 22			Sunday 23			Monday 24			Tuesday 25
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	0	0	2	0	0	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	3
Swell Height Map See all maps
Wave Height (m) & direction (?)	S	NE	E	E	S	E	E	S	E	S	E	S	S	E	S	S	SSE	SSE	SSE	ESE	ESE
Period(s) (?)	9	9	10	10	16	10	9	16	16	15	15	7	6	13	13	13	13	12	14	6	7
Wave Graph (?)
kJ (?)	2	0	400	48	5	186	108	5	5	4	4	23	5	14	13	13	17	30	66	96	355
Wind (km/h)	NE	NE	NNE	NW	ESE	NW	ENE	NE	NNW	S	SE	SW	E	ESE	SW	S	SSE	SSE	SSE	SE	NE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	off	cross- off	cross	cross- off	cross- off	cross- off	cross- off	on	cross- on	cross- on	cross	cross	cross- on	on	cross- on	glass	on	cross- on	cross- off
High Tide / height (m)		6:10PM 1.81		6:39AM 1.82	6:46PM 1.77		7:19AM 1.79		7:24PM 1.74	8:00AM 1.78		8:06PM 1.71	8:44AM 1.76		8:55PM 1.69	9:30AM 1.76		9:48PM 1.69	10:18AM 1.76		10:39PM 1.70
Low Tide / height (m)	12:06PM 0.66		12:22AM 0.57	12:44PM 0.67		1:01AM 0.57		1:25PM 0.69	1:40AM 0.59		2:11PM 0.71	2:21AM 0.62		3:01PM 0.72	3:07AM 0.67		3:51PM 0.73	3:57AM 0.70		4:41PM 0.73

	Wednesday 19			Thursday 20			Friday 21			Saturday 22			Sunday 23			Monday 24			Tuesday 25
Sunrise	5:43	-	-	5:41	-	-	5:41	-	-	5:41	-	-	5:39	-	-	5:39	-	-	5:39	-	-
Sunset	-	8:02	-	-	8:04	-	-	8:05	-	-	8:06	-	-	8:07	-	-	8:07	-	-	8:08	-

Rain (mm)	1	-	4	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	18	20	19	26	22	19	22	25	20	18	16	15	16	17	16	16	16	16	15	17	16
Feels °C (?)	15	19	19	25	21	20	21	22	17	15	15	15	15	16	16	15	14	14	13	18	16

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Quick surf report for Sponge bay:

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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 12 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.