Sumner Bar 48 hour detailed Surf Forecast

Lat Long: 43.56° S 172.76° E

Issued: 11 am 11 Jul 2026 (local time)

Forecast update in hr min

Today's Sumner Bar sea temperature is

10.4° C

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

Surf Forecasts:

How big are the waves at Sumner Bar today (11 Jul):

Morning surf: Morning surf (11 Jul, local time) - 2.5ft (0.8m), 10s period with E swell.
Afternoon surf: Afternoon surf (11 Jul, local time) - 2.5ft (0.7m), 10s period with E swell.
Evening surf: Evening surf (11 Jul, local time) - 2ft (0.6m), 10s period with E swell.

The current surf forecast for Sumner Bar at 2PM is: 0.7m 10s primary swell from a East direction and 0.2m 16s secondary swell from a South-southeast direction (forecast issued at 11:00am July 11). The wind direction is predicted to be cross-offshore.

Time (NZST) & Date	Wave Height	Wave Period
Morning (11 Jul)	2.5ft (0.8m)	10s
Afternoon (11 Jul)	2.5ft (0.7m)	10s
Evening (11 Jul)	2ft (0.6m)	10s

Table - waves today at Sumner Bar. (Swell directed towards the surf break)

	Short Range Forecast Mostly dry. Very mild (max 14°C on Mon night, min 4°C on Sat morning). Wind will be generally light.
	Sat 11					Sunday 12								Monday 13								Tue 14
	9 AM	12 PM	3 PM	6 PM	9 PM	12 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	12 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	12 AM	3 AM	6 AM
Rating (10 max)	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	E 10	E 10	E 10	E 10	E 10	E 9	E 9	E 9	E 9	E 9	E 9	E 9	E 9	NE 5	NE 6	NE 6	ENE 6	NNE 4	NNE 4	NNE 4	NE 4	NE 4	NE 8	ENE 7
Wave Graph
kJ	121	90	90	90	65	62	43	41	41	26	26	25	16	65	76	92	17	19	21	17	28	57	95	37
Wind (km/h)	WSW	WSW	WSW	W	NW	NW	N	NNE	NNE	ENE	ENE	NE	NE	NE	NE	NE	NNE	N	NNE	NNE	NE	NNW	NNW	N
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	off	cross-off	cross-off	glassy	glassy	glassy	glassy	glassy	glassy	on	on	on	on	on	on	glassy	on	cross-on	cross-on	on	on	cross-on	cross	cross-on
High Tide			1:17PM2.41m				1:46AM2.30m				2:14PM2.51m				2:46AM2.37m					3:12PM2.58m				3:43AM2.42m
Low Tide	7:00AM0.45m				7:38PM0.50m				7:54AM0.38m				8:35PM0.41m				8:52AM0.32m					9:32PM0.32m


	8:00	—	—	—	—	—	—	7:58	—	—	—	—	—	—	—	7:58	—	—	—	—	—	—	—	7:58
	—	—	5:07	—	—	—	—	—	—	—	5:08	—	—	—	—	—	—	—	5:09	—	—	—	—	5:10
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	4	6	8	7	6	6	5	5	6	7	8	8	8	8	7	6	6	11	13	13	14	10	10	11
Feels °C	0	3	5	5	4	4	3	3	4	4	4	4	4	5	4	4	3	5	7	7	8	6	7	8
Swell 1 Height (m) Direction Period (s)	E 10	E 10	E 10	E 10	E 10	E 9	E 9	E 9	E 9	E 9	E 9	E 9	E 9	ENE 5	ENE 5	ENE 6	ENE 6	E 9	E 9	E 9	E 8	E 9	NE 8	ENE 7
kJ	121	90	90	90	65	62	43	41	41	26	26	25	14	22	26	21	17	14	6	6	6	1	95	37
Swell 2 Height (m) Direction Period (s)	SSE 18	SSE 16	SSE 16	SSE 15	S 15	S 14	S 13	S 16	S 16	S 16	S 11	S 15	S 14	E 9	E 9	E 9	E 9	S 13	NE 7	S 13	ESE 9	S 12	S 9	S 8
kJ	30	27	25	23	17	4	4	5	5	5	2	4	4	14	14	14	14	3	2	3	15	25	6	5
Swell 3 Height (m) Direction Period (s)	S 9	S 5	—	—	—	—	S 16	S 16	S 15	S 15	S 15	ESE 8	ESE 9	S 10	S 9	S 14	S 13	S 8	S 13	—	—	S 22	S 12	S 20
kJ	55	12	—	—	—	—	78	46	41	40	4	14	16	2	2	4	4	1	3	—	—	9	3	8
Wind waves Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	NE 3	NE 4	NE 4	NE 5	NE 6	NE 6	NNW 2	NNE 4	NNE 4	NNE 4	NE 4	NE 4	NNW 3	N 4
kJ	—	—	—	—	—	—	—	—	—	—	1	6	16	65	76	92	1	19	21	17	28	57	10	18
Nearest Offshore or Glassy	South Shore Canterbury	South Shore Canterbury	South Shore Canterbury	South Shore Canterbury	South Shore Canterbury	South Shore Canterbury	South Shore Canterbury	South Shore Canterbury	South Shore Canterbury	Banks Peninsula - Te Oka Bay Canterbury	Banks Peninsula - Te Oka Bay Canterbury	Banks Peninsula - Te Oka Bay Canterbury	Waikuku Beach Canterbury	Waikuku Beach Canterbury	Lone Pine Brighton Canterbury	South Shore Canterbury	Banks Peninsula - Te Oka Bay Canterbury	Banks Peninsula - Te Oka Bay Canterbury	Banks Peninsula - Te Oka Bay Canterbury	Oaro Kaikoura and Marlborough	Banks Peninsula - Hickory Bay Canterbury	South Shore Canterbury	South Shore Canterbury	South Shore Canterbury
Rating (10 max)	2	1	1	1	1	1	1	1	1	2	1	1	1	1	1	1	2	1	1	1	2	1	1	1
Distance (km)	0	0	0	0	0	0	0	0	0	33	33	33	30	30	5	0	33	33	33	132	38	0	0	0
Best forecast wave conditions in Canterbury	Banks Peninsula - Gough Bay	Banks Peninsula - Gough Bay	Banks Peninsula - Gough Bay	Banks Peninsula - Gough Bay	Banks Peninsula - Gough Bay	Banks Peninsula - Gough Bay	Gore Bay	Gore Bay	Banks Peninsula - Gough Bay	Banks Peninsula - Gough Bay	Banks Peninsula - Hickory Bay	Banks Peninsula - Magnet Bay	Banks Peninsula - Magnet Bay	Banks Peninsula - Magnet Bay	Banks Peninsula - Hickory Bay	Banks Peninsula - Hickory Bay	Banks Peninsula - Gough Bay	Banks Peninsula - Magnet Bay	Lighthouse Reef	Tuhawaiki Point	Banks Peninsula - Hickory Bay	Gore Bay	Banks Peninsula - Gough Bay	Banks Peninsula - Gough Bay
Rating (10 max)	4	3	3	3	3	3	2	2	2	2	2	2	2	2	2	2	2	2	1	1	2	1	2	2
Best forecast wave conditions in New Zealand	Papatowai Catlins	Papatowai Catlins	Papatowai Catlins	Papatowai Catlins	Raglan-Whale Bay Raglan and West Waikato	Raglan-Whale Bay Raglan and West Waikato	Raglan-Whale Bay Raglan and West Waikato	Raglan-Whale Bay Raglan and West Waikato	Raglan-Whale Bay Raglan and West Waikato	Raglan-Indicators Raglan and West Waikato	Raglan-Indicators Raglan and West Waikato	Raglan-Indicators Raglan and West Waikato	Stent Road Taranaki	Stent Road Taranaki	Raglan-Manu Bay Raglan and West Waikato	Raglan-Whale Bay Raglan and West Waikato	Raglan-Manu Bay Raglan and West Waikato	Little Wanganui West Coast South Island	Little Wanganui West Coast South Island	Makorori Centre Gisborne and Mahia	Larsen Street West Coast South Island	Little Wanganui West Coast South Island	Little Wanganui West Coast South Island	Little Wanganui West Coast South Island
Rating (10 max)	5	5	5	5	4	4	4	4	4	4	4	4	4	4	3	3	2	2	2	1	4	4	3	3
Header Global	Kaifu Rivermouth Japan	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Albatross South Africa	Kaifu Rivermouth Japan	Kaifu Rivermouth Japan	Kaifu Rivermouth Japan	Kaifu Rivermouth Japan	Etang-Sale Reunion	Etang-Sale Reunion	Ilot Sancho Mauritius	Ilot Sancho Mauritius	Ilot Sancho Mauritius	Ilot Sancho Mauritius	Ilot Sancho Mauritius	Black Rocks Mauritius	Black Rocks Mauritius	Black Rocks Mauritius	Benkunqut Indonesia	Black Rocks Mauritius	Gas Bay Australia	Cobblestones Australia	Cobblestones Australia
Rating (10 max)	7	5	5	5	4	7	6	6	5	5	5	5	5	5	5	5	4	4	4	4	4	6	5	5

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

Latest Updates

Ben Mondy

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Sumner Bar 48 hour detailed Surf Forecast

How big are the waves at Sumner Bar today (11 Jul):

Short Range Forecast

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