Sumner Bar 48 hour detailed Surf Forecast

Lat Long: 43.56° S 172.76° E

Issued: 6 am 27 Sep 2026 (local time)

Forecast update in hr min

Today's Sumner Bar sea temperature is

11.4°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 (27 Sep):

Morning surf: Morning surf (27 Sep, local time) - 1.5ft (0.4m), 12s period with ESE swell.
Afternoon surf: Afternoon surf (27 Sep, local time) - 1ft (0.3m), 15s period with ESE swell.
Evening surf: Evening surf (27 Sep, local time) - 1.5ft (0.4m), 14s period with ESE swell.

The current surf forecast for Sumner Bar at 11AM is: 0.4m 12s primary swell from a East-southeast direction and 0.3m 5s secondary swell from a Northeast direction (forecast issued at 06:00am September 27). An open ocean swell of 0.6m 3s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (NZDT) & Date	Wave Height	Wave Period
Morning (27 Sep)	1.5ft (0.4m)	12s
Afternoon (27 Sep)	1ft (0.3m)	15s
Evening (27 Sep)	1.5ft (0.4m)	14s

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

	Short Range Forecast Heavy rain (total 22mm), heaviest during Sun morning. Very mild (max 12°C on Mon afternoon, min 3°C on Sun morning). Mainly fresh winds.
	Sunday 27							Monday 28								Tuesday 29
	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	1 AM	4 AM	7 AM	10 AM	1 PM	4 PM	7 PM	10 PM	1 AM	4 AM	7 AM	10 AM	1 PM	4 PM	7 PM	10 PM
Rating (10 max)	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	ESE 12	ESE 12	ESE 12	ESE 12	ESE 15	E 14	ESE 14	ESE 14	ESE 13	ESE 13	ESE 13	ESE 13	SSE 14	SE 15	SSE 15	SE 16	SE 16	SSE 17	SSE 17	SSE 17	SSE 16	SSE 16	SSE 16
Wave Graph
kJ	52	50	50	48	42	106	66	61	59	58	58	57	36	54	45	62	66	170	237	232	155	147	99
Wind (km/h)	NNW	SW	SW	WSW	SW	SW	W	NW	N	WSW	WSW	W	N	E	SE	N	WSW	WSW	NW	NE	ENE	ENE	ESE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	glassy	off	off	cross-off	off	off	cross-off	glassy	cross-on	cross-off	cross-off	cross-off	glassy	cross-on	glassy	cross-on	cross-off	off	cross	on	cross-on	cross-on	cross-on
High Tide		5:21AM2.24m				5:43PM2.29m				6:08AM2.29m				6:30PM2.32m				6:59AM2.35m					7:22PM2.32m
Low Tide				11:36AM0.50m				11:59PM0.48m				12:21PM0.47m				00:47AM0.47m					1:10PM0.47m


	—	8:11	—	—	—	—	—	—	—	7:09	—	—	—	—	—	—	—	7:07	—	—	—	—	—
	—	—	—	—	—	8:30	—	—	—	—	—	—	—	7:30	—	—	—	—	—	—	—	7:31	—
mm	—	—	9	7	4	1	—	—	—	—	—	—	—	1	—	—	—	—	—	—	—	—	—
Temp °C	11	10	5	3	7	7	5	5	4	4	7	11	12	10	8	7	7	5	8	10	12	11	11
Feels °C	9	6	-2	-3	-1	1	1	3	1	1	4	8	10	6	6	3	4	1	5	7	9	8	8
Swell 1 Height (m) Direction Period (s)	ESE 12	NE 5	ESE 12	SSE 7	SE 8	E 14	ESE 14	ESE 14	ESE 13	ESE 13	ESE 13	ESE 13	ESE 13	ESE 13	ESE 13	SE 16	SE 16	SSE 17	SSE 17	SSE 17	SSE 16	SSE 16	SSE 16
kJ	52	13	50	20	32	106	66	61	59	58	58	57	33	32	32	62	66	170	237	232	155	147	99
Swell 2 Height (m) Direction Period (s)	NE 6	ESE 12	NE 5	ESE 12	ESE 15	SE 8	SE 8	SE 7	SE 7	SE 6	SE 12	SSE 6	SSE 14	NE 6	SSE 15	ESE 13	ESE 13	E 12	E 12	E 12	E 12	E 12	E 12
kJ	9	50	4	48	42	17	21	16	7	6	23	4	36	1	45	32	32	12	12	12	11	11	3
Swell 3 Height (m) Direction Period (s)	E 16	E 16	E 16	E 15	ESE 11	ENE 8	NE 6	S 11	SSE 11	SSE 12	—	S 13	—	NE 6	SE 3	—	—	—	—	—	—	—	—
kJ	20	20	43	39	25	6	2	9	12	14	—	13	—	1	2	—	—	—	—	—	—	—	—
Wind waves Height (m) Direction Period (s)	N 3	WNW 3	SSW 3	SSW 3	SW 3	SW 3	WSW 3	—	—	—	—	—	—	SE 15	—	—	—	—	—	—	—	NNE 3	NE 3
kJ	5	1	8	7	8	9	1	—	—	—	—	—	—	54	—	—	—	—	—	—	—	1	2
Nearest Offshore or Glassy	South Shore Canterbury	South Shore Canterbury	Clarence River Kaikoura and Marlborough	Taylors Mistake Canterbury	Wavetraps West Coast South Island	Sumner Bar Canterbury	South Shore Canterbury	South Shore Canterbury	South Shore Canterbury	South Shore Canterbury	South Shore Canterbury	South Shore Canterbury	South Shore Canterbury	Banks Peninsula - Raupo Bay 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 - Magnet Bay Canterbury	Banks Peninsula - Raupo Bay Canterbury
Rating (10 max)	1	1	1	1	4	1	1	1	1	1	1	1	1	4	1	1	1	1	2	5	4	5	4
Distance (km)	0	0	184	3	178	0	0	0	0	0	0	0	0	25	0	0	0	0	0	33	33	35	25
Best forecast wave conditions in Canterbury	Banks Peninsula - Gough Bay	Banks Peninsula - Gough Bay		Banks Peninsula - Stony Bay		Patiti Point	Banks Peninsula - Stony Bay	Banks Peninsula - Gough Bay	Banks Peninsula - Magnet Bay	Banks Peninsula - Gough Bay	Banks Peninsula - Gough Bay	Banks Peninsula - Gough Bay	Banks Peninsula - Hickory Bay	Banks Peninsula - Stony Bay	Banks Peninsula - Magnet Bay	Banks Peninsula - Gough Bay	Banks Peninsula - Gough Bay	Banks Peninsula - Gough Bay	Gore Bay	Banks Peninsula - Te Oka Bay	Banks Peninsula - Te Oka Bay	Banks Peninsula - Gough Bay	Banks Peninsula - Gough Bay
Rating (10 max)	2	2		3		3	4	3	4	3	3	3	4	4	4	4	4	5	4	5	4	5	4
Best forecast wave conditions in New Zealand	Makorori Centre Gisborne and Mahia	Papatowai Catlins	Makorori Centre Gisborne and Mahia	Haast Beach West Coast South Island	Nine Mile West Coast South Island	Whites Bay Kaikoura and Marlborough	Mangamaunu Kaikoura and Marlborough	Mangamaunu Kaikoura and Marlborough	White Rock - The Spit Wairarapa	Mangamaunu Kaikoura and Marlborough	Mangamaunu Kaikoura and Marlborough	Mangamaunu Kaikoura and Marlborough	Tora-Stix Wairarapa	Ning Nong Point and Reef Wairarapa	Wainakarua River Mouth Otago	Humenga Point Wairarapa	Blaketown Wedge West Coast South Island	Little Wanganui West Coast South Island	Little Wanganui West Coast South Island	Fox River West Coast South Island	Shingles West Coast South Island	Ning Nong Point and Reef Wairarapa	Makorori Centre Gisborne and Mahia
Rating (10 max)	2	4	2	4	4	4	4	3	4	3	3	3	4	4	5	4	4	5	4	5	4	6	4
Header Global	Trial Harbour Australia	Trial Harbour Australia	Trial Harbour Australia	Trial Harbour Australia	Asu Indonesia	Asu Indonesia	Asu Indonesia	Asu Indonesia	Bondo Kodi Indonesia	Bondo Kodi Indonesia	Desert Point (Bangko-Bangko) Indonesia	Asu Indonesia	Asu Indonesia	Asu Indonesia	Addington (South Beach) South Africa	Trial Harbour Australia	Trial Harbour Australia	Trial Harbour Australia	Trial Harbour Australia	Fox River New Zealand	White Rock - The Spit New Zealand	Ning Nong Point and Reef New Zealand	Dunedin - Bobs Beach New Zealand
Rating (10 max)	9	9	8	7	5	5	5	5	5	5	5	4	4	4	4	5	5	6	6	5	7	6	9

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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Sumner Bar 48 hour detailed Surf Forecast

How big are the waves at Sumner Bar today (27 Sep):

Short Range Forecast

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