Surf Forecasts:
How big are the waves at Kosi Bay today (31 Jul):
- Morning surf: Morning surf (31 Jul, local time) - 11ft (3.5m), 10s period with S swell.
- Afternoon surf: Afternoon surf (31 Jul, local time) - 11ft (3.5m), 9s period with S swell.
- Evening surf: Evening surf (31 Jul, local time) - 11ft (3.5m), 9s period with S swell.
The current surf forecast for Kosi Bay at 4AM is: 3.5m 10s primary swell from a South direction and 0.5m 10s secondary swell from a East direction, 0.3m 17s secondary swell from a South-southwest direction (forecast issued at 01:00am July 31). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Jul) | 11ft (3.5m) | 10s |
| Afternoon (31 Jul) | 11ft (3.5m) | 9s |
| Evening (31 Jul) | 11ft (3.5m) | 9s |
Table - waves today at Kosi Bay. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Fri night. Warm (max 21°C on Fri afternoon, min 14°C on Sun morning). Winds decreasing (strong winds from the S on Fri afternoon, light winds from the WSW by Sun night). | ||||||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | ||||||||||||||||||||||
2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | SE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 12 | SSE 11 | SSE 11 | SSE 11 | SSE 10 | SSE 11 | SSE 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 2393 | 2260 | 1929 | 1914 | 2289 | 2289 | 2166 | 1798 | 955 | 1100 | 1532 | 1340 | 1373 | 1373 | 1402 | 1670 | 1924 | 2303 | 2186 | 1738 | 1412 | 1215 | 1311 | 1436 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-off |
High Tide | 4:44AM2.08m | 5:03PM2.13m | 5:12AM2.10m | 5:31PM2.16m | 5:40AM2.08m | 6:00PM2.14m | ||||||||||||||||||
Low Tide | 10:51AM0.10m | 11:07PM0.17m | 11:19AM0.08m | 11:37PM0.18m | 11:47AM0.10m | |||||||||||||||||||
 |  |  |  | | | |  | |  | | |  | | | | | | | | | | | | |
 | — | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:21 | — | — |
mm | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 18 | 20 | 21 | 20 | 19 | 18 | 17 | 17 | 16 | 19 | 19 | 19 | 18 | 17 | 15 | 15 | 14 | 19 | 21 | 20 | 20 | 17 |
Feels °C | 11 | 11 | 11 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 10 | 13 | 13 | 14 | 13 | 13 | 11 | 11 | 10 | 16 | 18 | 17 | 19 | 16 |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 12 | ESE 11 | E 11 | E 11 | ESE 11 | SE 10 | SE 10 | S 16 | S 16 | S 16 | SW 16 | SW 15 | SSE 10 | SSE 10 | SSE 12 | SSE 11 | SSE 11 | SSE 11 | — | SSE 11 | SSE 11 |
| kJ | 51 | 52 | 53 | 69 | 43 | 63 | 62 | 40 | 694 | 1100 | 20 | 5 | 5 | 10 | 9 | 1461 | 1563 | 2303 | 2186 | 1738 | 1412 | — | 1311 | 1436 |
Swell 2 Height (m) Direction Period (s) | SSW 17 | — | — | S 18 | S 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | — | — | — | — | — | — | — | — | — | — | — | — | S 18 |
| kJ | 54 | — | — | 25 | 25 | 30 | 30 | 30 | 28 | 27 | 48 | — | — | — | — | — | — | — | — | — | — | — | — | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | SSW 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | — | — | — | — | SSE 10 | — | — |
| kJ | 2393 | 2260 | 1929 | 1914 | 2289 | 2289 | 2166 | 1798 | 955 | 698 | 1532 | 1340 | 1373 | 1373 | 1402 | 1670 | 1924 | — | — | — | — | 1215 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 378 | 425 | 431 | 1213 | 1244 | 1252 | 378 | 360 | 375 | 319 | 319 | 507 | 1242 | 432 | 344 | 297 | 177 | 177 | 177 | 319 | 378 | 378 | 230 | 0 |
Best forecast wave conditions in KwaZulu-Natal North Coast | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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