Start Bay wave buoy monthly averages for 2019 last observation shown oldest observation available
Average Wave Height
 2 ft 
 0.3 — 11.4 ft
   Average Wave period
 9 secs 
 2 — 29 secs
   Average Wave Direction
 SSE 
  Average Water temperature
 13 °C 
 10 — 19.6 °C
   | Month | Wave height (ft) | Wave Period (s) | Wave Direction | Water Temp (°C) | 
|---|---|---|---|---|
| 3.5 | 10.5 | S | 11.2 | |
| 3.1 | 9.1 | SSE | 13.0 | |
| 3.0 | 8.5 | SSE | 15.5 | |
| 2.2 | 7.7 | SSE | 17.0 | |
| 1.6 | 6.5 | SSE | 16.9 | |
| 1.3 | 6.9 | SSE | 16.6 | |
| 1.9 | 6.6 | SSE | 13.9 | |
| 1.6 | 8.4 | SSE | 12.1 | |
| 2.7 | 8.3 | SSE | 10.6 | |
| 2.4 | 10.3 | S | 10.1 | |
| 2.9 | 10.4 | S | 9.8 | |
| 1.8 | 10 | S | 10.6 | 
 Realtime data displayed on this page is from the Regional
                Coastal Monitoring Programme.