Blue Duck Stream Surf Forecast

/ Kaikoura and Marlborough (12 surf breaks) /

New Zealand (466 surf breaks) / Lat Long: (42.28° S 173.78° E)

Surf Forecasts:

Blue Duck Stream surfForecast / Kaikoura and Marlborough / New Zealand

48hr Weather and Surf, issued 5 pm Sunday 14 Sep 2025 NZST

Forecast update in hr min s Forecast update imminent

Blue Duck Stream surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Blue Duck Stream sea temperature is 10.4° C
(Which is normal for this time of year)

How big are the waves at Blue Duck Stream today?

The current surf forecast for Blue Duck Stream at 10PM is: 2.2m 10s primary swell from a South direction and 0.2m 12s secondary swell from a East direction (forecast issued at 05:00pm September 14). The wind direction is predicted to be cross-shore.

Time (NZST) & Date	Wave Height	Wave Period
Morning (14 Sep)	-	-
Afternoon (14 Sep)	10ft (3.0m)	11s
Evening (14 Sep)	7.5ft (2.3m)	10s

Table - waves today at Blue Duck Stream. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Sunday 14			Monday 15								Tuesday 16								Wednesday 17
	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM
Rating (10 max)	!	!	4	3	3	3	2	2	1	2	2	1	1	1	1	0	0	1	1	1	1	1	1	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	S	S	S	S	S	S	S	SSE	SSE	SSE	SSE	S	SSE	SSE	SSW	SSW	S	S	SE	SE	SE	SE	SSW	SSW
Period(s) (?)	11	11	10	10	10	10	9	9	9	9	9	8	8	8	14	14	14	14	11	11	11	11	15	14
Wave Graph (?)
kJ (?)	2079	2355	1100	849	687	518	440	333	283	238	189	144	115	51	61	68	98	132	42	55	55	55	44	38
Wind (km/h)	SSW	S	N	N	NW	WNW	SW	SSE	NNE	NW	WNW	WNW	WNW	WNW	NW	ENE	ENE	N	W	WNW	NW	NW	NNW	N
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross- on	cross- off	cross- off	cross- off	off	glass	glass	cross	glass	off	off	off	off	glass	cross- on	cross- on	cross- off	off	off	cross- off	cross- off	cross- off	cross- off
High Tide / height (m)				10:30PM 1.51				11:01AM 1.65				11:29PM 1.49				12:00PM 1.64					12:26AM 1.47
Low Tide / height (m)						4:41AM 0.09				5:22PM 0.12				5:39AM 0.11					6:20PM 0.14				6:35AM 0.12

	Sunday 14			Monday 15								Tuesday 16								Wednesday 17
Sunrise	-	-	-	-	-	-	6:26	-	-	-	-	-	-	-	6:24	-	-	-	-	-	-	-	6:22	-
Sunset	-	6:12	-	-	-	-	-	-	-	6:13	-	-	-	-	-	-	-	6:14	-	-	-	-	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	10	9	8	8	9	9	13	15	16	15	13	13	14	14	17	17	18	18	16	16	16	15	16	17
Feels °C (?)	4	6	5	5	6	6	11	13	13	13	10	9	10	11	15	15	16	16	14	13	13	11	13	14

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

Recent Eyeball Surf Reports for Kaikoura and Marlborough

Wind Update Cross-off wind 17 km from Blue Duck Stream has become light (light winds from the N at KaikouraAws). Waves should be turning clean at Blue Duck Stream. 2.3m 10s swell from the S to make surfable waves.
1 hour 2 minutes ago Blue Duck Stream
Wind Update Recent cross-shore wind 13 km from Mangamaunu has fallen light (light winds from the N at KaikouraAws). Waves should be turning clean at Mangamaunu. 2.3m 10s swell from the S to make surfable waves.
1 hour 2 minutes ago Mangamaunu

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17 km away, 1 h 2 min ago

9 km/h

0.0

10.4

Air / Water (°C)

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