Kosi Bay Surf Forecast

/ KZN North (23 surf breaks) /

South Africa (273 surf breaks) / Lat Long: (26.87° S 32.89° E)

Surf Forecasts:

Kosi Bay surfForecast / KZN North / South Africa

12 Day Weather and Surf, issued 1 pm Wednesday 29 Oct 2025 SAST

Forecast update in hr min s Forecast update imminent

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

Today's Kosi Bay sea temperature is 23.8° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Kosi Bay this week:

The surf forecast for Kosi Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Oct 31) at 8AM. The primary swell is predicted to be 1.0m and 17s period with a secondary swell of 1.0m and 6s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Kosi Bay in the next 12 days are 1.0m 18s and forecast to arrive on Friday (Oct 31) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Tuesday (Nov 04) at 11AM.

Wave Type	Time (SAST) & Date	Wave Height & Period
Next good surf (1 star+)	8AM (Fri 31st Oct)	3.5ft (1.0m) 17s
Best Surf	8AM (Fri 31st Oct)	3.5ft (1.0m) 17s
Most Powerful	5AM (Fri 31st Oct)	3.5ft (1.0m) 18s

Table - best surf conditions forecast for Kosi Bay over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Moderate rain (total 19mm), heaviest on Wed night. Warm (max 26°C on Wed afternoon, min 21°C on Wed night). Wind will be generally light.											Days 3-6 Weather Summary Light rain (total 6mm), mostly falling on Sat night. Warm (max 25°C on Tue morning, min 20°C on Sat night). Winds decreasing (fresh winds from the S on Sat night, light winds from the SE by Sun night).
	Wed 29		Thursday 30			Friday 31			Saturday 01			Sunday 02			Monday 03			Tuesday 04
	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM
Rating (10 max)	1	1	0	0	2	2	0	1	1	0	0	0	0	0	0	1	1	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	E	E	ESE	S	SSW	S	S	ENE	ENE	ENE	E	E	E	E	ESE	E	E	E	E	ENE	S
Period(s) (?)	8	8	5	16	18	17	14	7	7	8	9	9	9	8	8	8	8	8	8	6	7
Wave Graph (?)
kJ (?)	140	160	72	127	516	562	150	152	217	169	210	234	192	200	220	169	165	82	57	107	475
Wind (km/h)	ESE	SSE	SE	SE	ESE	NNE	NNE	NNE	NE	S	S	S	SSE	SE	ENE	NNE	N	NNE	NE	S	S
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	on	cross- on	on	on	on	cross- off	cross- off	cross- off	cross	cross- on	cross- on	cross- on	on	on	cross- on	cross- off	cross- off	cross- off	cross	cross- on	cross- on
High Tide / height (m)		8:09PM 1.35	9:54AM 1.34		10:55PM 1.34	11:55AM 1.50		12:23AM 1.50	12:51PM 1.73		1:12AM 1.70	1:32PM 1.96		1:51AM 1.89		2:10PM 2.16	2:28AM 2.05		2:46PM 2.30	3:04AM 2.17
Low Tide / height (m)		2:53AM 0.89		4:28PM 0.94		5:17AM 0.83	6:15PM 0.77		6:28AM 0.65	7:06PM 0.55		7:14AM 0.44	7:46PM 0.33		7:53AM 0.24		8:22PM 0.15	8:30AM 0.07		8:58PM 0.02	9:08AM -0.04

	Wed 29		Thursday 30			Friday 31			Saturday 01			Sunday 02			Monday 03			Tuesday 04
Sunrise	-	-	5:00	-	-	4:58	-	-	4:58	-	-	4:56	-	-	4:56	-	-	4:56	-	-	4:54
Sunset	6:02	-	-	6:04	-	-	6:05	-	-	6:05	-	-	6:06	-	-	6:07	-	-	6:07	-	-

Rain (mm)	-	9	6	3	-	-	-	1	-	-	2	2	1	1	-	-	-	-	-	-	-
Temp. °C	26	23	22	22	22	24	24	22	26	24	21	21	22	21	22	23	21	25	26	23	23
Feels °C (?)	24	26	21	21	22	22	21	20	27	22	18	18	20	19	21	22	19	23	24	24	19

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 Kosi Bay:

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Information about the Kosi Bay Surf forecast

The above surf forecast table for Kosi Bay provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Kosi Bay can be found by selecting the local surf guide option on the grey menu. Our Kosi 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 (Kosi 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 Kosi 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.

Kosi Bay is 108 km (67 miles) from the city of Maputo. If you plan a holiday in KwaZulu-Natal North Coast, look for hotels and other accommodation in Maputo. Maputo has rooms for a wide range of budgets as well as car hire and transport links.