Start Bay wave buoy daily averages for Sep 2025 last observation shown oldest observation available Monthly averages for
Average Wave Height
2 ft
0.6 — 5.7 ft
Average Wave period
4 secs
3 — 7 secs
Average Wave Direction
SSE
Average Water temperature
16 °C
15.3 — 18.1 °C
| Day | Wave height (ft) | Wave Period (s) | Wave Direction | Water Temp (°C) |
|---|---|---|---|---|
| 1 | 5 | S | 15.8 | |
| 1 | 5 | S | 15.9 | |
| 2 | 5 | S | 15.8 | |
| 2 | 4 | SSE | 15.8 | |
| 2 | 4 | E | 15.7 | |
| 2 | 4 | E | 15.7 | |
| 2 | 4 | E | 15.6 | |
| 2 | 4 | E | 15.5 | |
| 3 | 5 | E | 15.5 | |
| 2 | 4 | ESE | 15.6 | |
| 2 | 4 | S | 15.7 | |
| 1 | 4 | S | 15.9 | |
| 2 | 4 | S | 15.9 | |
| 3 | 4 | S | 15.9 | |
| 2 | 5 | S | 16.2 | |
| 4 | 5 | S | 16.3 | |
| 3 | 4 | S | 16.5 | |
| 2 | 4 | S | 16.5 | |
| 2 | 4 | S | 16.6 | |
| 3 | 4 | S | 16.8 | |
| 3 | 4 | SSE | 16.9 | |
| 3 | 4 | SSE | 16.9 | |
| 2 | 5 | S | 17.1 | |
| 3 | 4 | SSE | 17.1 | |
| 3 | 4 | SE | 17.0 | |
| 2 | 5 | S | 17.0 | |
| 3 | 6 | S | 17.3 | |
| 4 | 5 | S | 17.6 | |
| 3 | 4 | SSE | 17.9 | |
| 3 | 4 | S | 18.0 |
Realtime data displayed on this page is from the
Regional Coastal Monitoring Programme
.