Marine Forecast - Isle of Arran
Live Sea State Warnings
No warnings currently. (Integrate Met Office API for live updates)
Tide Updates
High Tide: 08:00 (2.5m) | Low Tide: 14:00 (0.5m). (Integrate Admiralty Tide API)
Ferry Updates
Arran Ferry: On time. (Integrate CalMac API)
Hourly Wave Height Forecast
Wave Height (m)
4
3.5
3
2.5
2
1.5
1
0.5
0
Time
| Time | Wave Height (m) |
|---|---|
| Dec 21 22:00 | 0.42 |
| Dec 22 00:00 | 0.42 |
| Dec 22 02:00 | 0.44 |
| Dec 22 04:00 | 0.46 |
| Dec 22 06:00 | 0.48 |
| Dec 22 08:00 | 0.44 |
| Dec 22 10:00 | 0.40 |
| Dec 22 12:00 | 0.38 |
| Dec 22 14:00 | 0.34 |
| Dec 22 16:00 | 0.30 |
| Dec 22 18:00 | 0.26 |
| Dec 22 20:00 | 0.26 |
| Dec 22 22:00 | 0.26 |
| Dec 23 00:00 | 0.24 |
| Dec 23 02:00 | 0.22 |
| Dec 23 04:00 | 0.22 |
| Dec 23 06:00 | 0.22 |
| Dec 23 08:00 | 0.24 |
| Dec 23 10:00 | 0.24 |
| Dec 23 12:00 | 0.22 |
| Dec 23 14:00 | 0.20 |
| Dec 23 16:00 | 0.22 |
| Dec 23 18:00 | 0.24 |
| Dec 23 20:00 | 0.26 |
| Dec 23 22:00 | 0.28 |
| Dec 24 00:00 | 0.30 |
| Dec 24 02:00 | 0.32 |
| Dec 24 04:00 | 0.32 |
| Dec 24 06:00 | 0.30 |
| Dec 24 08:00 | 0.28 |
| Dec 24 10:00 | 0.26 |
| Dec 24 12:00 | 0.24 |
| Dec 25 00:00 | 0.30 |
| Dec 25 12:00 | 0.34 |
| Dec 26 00:00 | 0.30 |
| Dec 26 12:00 | 0.26 |
| Dec 27 00:00 | 0.18 |
| Dec 27 12:00 | 0.48 |
| Dec 28 00:00 | 0.46 |
Sunday, 21 December 2025
| Time | Weather | Air Temp (°C) | Sea Temp (°C) | Wind Speed (mph) | Wind Gusts (mph) | Wind Dir | Wind Cardinal | Wave Height (m) | Wave Dir | Wave Cardinal | Wave Period (s) | Current Vel (mph) | Current Dir | Current Cardinal | Sea Level (m) | Beaufort |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 22:00 |
|
8.5 | 10.5 | 15.2 | 21.3 | N/A | N/A | 0.42 | SE | 4.10 | 0.30 | NE | -0.02 | 4 | ||
| 23:00 |
|
8.6 | 10.5 | 15.9 | 22.3 | N/A | N/A | 0.42 | SE | 3.95 | 0.10 | E | 0.36 | 4 |
Monday, 22 December 2025
| Time | Weather | Air Temp (°C) | Sea Temp (°C) | Wind Speed (mph) | Wind Gusts (mph) | Wind Dir | Wind Cardinal | Wave Height (m) | Wave Dir | Wave Cardinal | Wave Period (s) | Current Vel (mph) | Current Dir | Current Cardinal | Sea Level (m) | Beaufort |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 00:00 |
|
8.6 | 10.5 | 16.6 | 23.2 | N/A | N/A | 0.42 | SE | 3.75 | 0.10 | W | 0.64 | 4 | ||
| 01:00 |
|
8.3 | 10.5 | 16.6 | 23.2 | N/A | N/A | 0.44 | E | 3.60 | 0.40 | W | 0.71 | 4 | ||
| 02:00 |
|
8.6 | 10.5 | 16.1 | 22.5 | N/A | N/A | 0.44 | E | 3.45 | 0.60 | W | 0.48 | 4 | ||
| 03:00 |
|
8.4 | 10.5 | 16.6 | 23.2 | N/A | N/A | 0.46 | E | 3.35 | 0.80 | SW | N/A | 4 | ||
| 04:00 |
|
8.3 | 10.5 | 18.3 | 25.6 | N/A | N/A | 0.46 | E | 3.30 | 0.60 | W | -0.54 | 4 | ||
| 05:00 |
|
8.3 | 10.5 | 20.6 | 28.8 | N/A | N/A | 0.48 | E | 3.25 | 0.50 | W | -0.93 | 5 | ||
| 06:00 |
|
8.4 | 10.5 | 19.9 | 27.9 | N/A | N/A | 0.48 | E | 3.25 | 0.20 | W | -1.07 | 5 | ||
| 07:00 |
|
8.4 | 10.5 | 20.1 | 28.1 | N/A | N/A | 0.46 | E | 3.25 | 0.10 | N | -0.98 | 5 | ||
| 08:00 |
|
8.7 | 10.5 | 20.6 | 28.8 | N/A | N/A | 0.44 | E | 3.20 | 0.20 | NE | -0.70 | 5 | ||
| 09:00 |
|
8.6 | 10.5 | 18.1 | 25.3 | N/A | N/A | 0.42 | E | 3.20 | 0.30 | NE | -0.32 | 4 | ||
| 10:00 |
|
8.7 | 10.5 | 16.1 | 22.5 | N/A | N/A | 0.40 | E | 3.15 | 0.30 | NE | 0.10 | 4 | ||
| 11:00 |
|
9.0 | 10.5 | 14.1 | 19.7 | N/A | N/A | 0.40 | E | 3.10 | 0.10 | N | 0.51 | 4 | ||
| 12:00 |
|
9.2 | 10.5 | 12.8 | 17.9 | N/A | N/A | 0.38 | E | 3.05 | 0.20 | NW | 0.86 | 4 | ||
| 13:00 |
|
9.1 | 10.5 | 11.6 | 16.2 | N/A | N/A | 0.36 | E | 3.10 | 0.30 | W | 1.01 | 3 | ||
| 14:00 |
|
8.9 | 10.5 | 11.6 | 16.2 | N/A | N/A | 0.34 | E | 3.15 | 0.60 | W | 0.83 | 3 | ||
| 15:00 |
|
8.2 | 10.5 | 10.5 | 14.7 | N/A | N/A | 0.32 | E | 3.20 | 0.70 | W | 0.31 | 3 | ||
| 16:00 |
|
7.3 | 10.5 | 8.9 | 12.5 | N/A | N/A | 0.30 | SE | 3.20 | 0.60 | W | -0.34 | 3 | ||
| 17:00 |
|
7.2 | 10.5 | 9.2 | 12.9 | N/A | N/A | 0.28 | SE | 3.15 | 0.50 | W | -0.88 | 3 | ||
| 18:00 |
|
6.7 | 10.5 | 8.1 | 11.3 | N/A | N/A | 0.26 | SE | 3.15 | 0.20 | W | -1.16 | 3 | ||
| 19:00 |
|
6.0 | 10.5 | 8.7 | 12.2 | N/A | N/A | 0.26 | SE | 3.20 | 0.10 | N | -1.19 | 3 | ||
| 20:00 |
|
5.6 | 10.5 | 7.6 | 10.6 | N/A | N/A | 0.26 | SE | 3.30 | 0.30 | NE | -1.01 | 2 | ||
| 21:00 |
|
5.2 | 10.5 | 6.3 | 8.8 | N/A | N/A | 0.26 | SE | 3.40 | 0.30 | NE | -0.70 | 2 | ||
| 22:00 |
|
4.9 | 10.5 | 7.6 | 10.6 | N/A | N/A | 0.26 | SE | 3.55 | 0.30 | NE | -0.32 | 2 | ||
| 23:00 |
|
4.9 | 10.5 | 10.1 | 14.1 | N/A | N/A | 0.24 | SE | 3.70 | 0.30 | NE | 0.07 | 3 |
Tuesday, 23 December 2025
| Time | Weather | Air Temp (°C) | Sea Temp (°C) | Wind Speed (mph) | Wind Gusts (mph) | Wind Dir | Wind Cardinal | Wave Height (m) | Wave Dir | Wave Cardinal | Wave Period (s) | Current Vel (mph) | Current Dir | Current Cardinal | Sea Level (m) | Beaufort |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 00:00 |
|
4.7 | 10.5 | 8.3 | 11.6 | N/A | N/A | 0.24 | SE | 3.75 | 0.20 | NE | 0.44 | 3 | ||
| 01:00 |
|
4.4 | 10.5 | 8.5 | 11.9 | N/A | N/A | 0.24 | SE | 3.70 | 0.20 | NW | 0.65 | 3 | ||
| 02:00 |
|
4.1 | 10.5 | 8.1 | 11.3 | N/A | N/A | 0.22 | SE | 3.55 | 0.40 | W | 0.60 | 3 | ||
| 03:00 |
|
4.4 | 10.5 | 8.7 | 12.2 | N/A | N/A | 0.22 | SE | 3.45 | 0.60 | W | 0.22 | 3 | ||
| 04:00 |
|
5.0 | 10.5 | 9.8 | 13.7 | N/A | N/A | 0.22 | SE | 3.40 | 0.60 | W | -0.34 | 3 | ||
| 05:00 |
|
4.9 | 10.5 | 10.5 | 14.7 | N/A | N/A | 0.22 | SE | 3.35 | 0.40 | W | -0.84 | 3 | ||
| 06:00 |
|
5.0 | 10.5 | 11.6 | 16.2 | N/A | N/A | 0.22 | SE | 3.35 | 0.10 | W | -1.11 | 3 | ||
| 07:00 |
|
5.3 | 10.5 | 12.1 | 16.9 | N/A | N/A | 0.22 | SE | 3.30 | N/A | E | -1.13 | 3 | ||
| 08:00 |
|
5.4 | 10.5 | 12.3 | 17.2 | N/A | N/A | 0.24 | SE | 3.30 | 0.20 | NE | -0.95 | 3 | ||
| 09:00 |
|
5.5 | 10.5 | 12.3 | 17.2 | N/A | N/A | 0.24 | SE | 3.30 | 0.30 | NE | -0.63 | 3 | ||
| 10:00 |
|
5.8 | 10.5 | 11.4 | 16.0 | N/A | N/A | 0.24 | SE | 3.35 | 0.30 | NE | -0.21 | 3 | ||
| 11:00 |
|
6.1 | 10.5 | 11.6 | 16.2 | N/A | N/A | 0.22 | SE | 3.40 | 0.30 | NE | 0.23 | 3 | ||
| 12:00 |
|
6.7 | 10.5 | 11.4 | 16.0 | N/A | N/A | 0.22 | SE | 3.50 | 0.20 | NE | 0.64 | 3 | ||
| 13:00 |
|
7.1 | 10.5 | 10.3 | 14.4 | N/A | N/A | 0.22 | SE | 3.60 | 0.10 | W | 0.90 | 3 | ||
| 14:00 |
|
7.1 | 10.5 | 10.3 | 14.4 | N/A | N/A | 0.20 | SE | 3.75 | 0.40 | W | 0.88 | 3 | ||
| 15:00 |
|
7.1 | 10.5 | 11.2 | 15.7 | N/A | N/A | 0.20 | SE | 3.80 | 0.60 | W | 0.49 | 3 | ||
| 16:00 |
|
7.1 | 10.5 | 12.1 | 16.9 | N/A | N/A | 0.22 | SE | 3.75 | 0.80 | SW | -0.16 | 3 | ||
| 17:00 |
|
7.1 | 10.5 | 11.9 | 16.7 | N/A | N/A | 0.22 | SE | 3.65 | 0.50 | SW | -0.81 | 3 | ||
| 18:00 |
|
7.0 | 10.5 | 11.0 | 15.4 | N/A | N/A | 0.24 | SE | 3.55 | 0.40 | W | -1.24 | 3 | ||
| 19:00 |
|
7.0 | 10.5 | 10.3 | 14.4 | N/A | N/A | 0.24 | SE | 3.50 | 0.10 | W | -1.40 | 3 | ||
| 20:00 |
|
7.1 | 10.5 | 9.4 | 13.2 | N/A | N/A | 0.26 | SE | 3.45 | N/A | E | -1.37 | 3 | ||
| 21:00 |
|
7.0 | 10.5 | 9.8 | 13.7 | N/A | N/A | 0.26 | SE | 3.40 | 0.20 | NE | -1.20 | 3 | ||
| 22:00 |
|
7.0 | 10.4 | 10.5 | 14.7 | N/A | N/A | 0.28 | SE | 3.35 | 0.30 | NE | -0.91 | 3 | ||
| 23:00 |
|
7.1 | 10.4 | 11.2 | 15.7 | N/A | N/A | 0.28 | SE | 3.35 | 0.20 | NE | -0.53 | 3 |
Wednesday, 24 December 2025
| Time | Weather | Air Temp (°C) | Sea Temp (°C) | Wind Speed (mph) | Wind Gusts (mph) | Wind Dir | Wind Cardinal | Wave Height (m) | Wave Dir | Wave Cardinal | Wave Period (s) | Current Vel (mph) | Current Dir | Current Cardinal | Sea Level (m) | Beaufort |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 00:00 |
|
7.1 | 10.4 | 10.7 | 15.0 | N/A | N/A | 0.30 | SE | 3.30 | 0.20 | NE | -0.12 | 3 | ||
| 01:00 |
|
7.0 | 10.4 | 11.0 | 15.4 | N/A | N/A | 0.30 | E | 3.25 | 0.10 | N | 0.24 | 3 | ||
| 02:00 |
|
6.8 | 10.4 | 11.4 | 16.0 | N/A | N/A | 0.32 | E | 3.15 | 0.20 | W | 0.39 | 3 | ||
| 03:00 |
|
6.8 | 10.4 | 11.6 | 16.2 | N/A | N/A | 0.32 | E | 3.10 | 0.60 | W | 0.20 | 3 | ||
| 04:00 |
|
6.7 | 10.4 | 11.6 | 16.2 | N/A | N/A | 0.32 | E | 3.10 | 0.70 | W | -0.29 | 3 | ||
| 05:00 |
|
6.4 | 10.4 | 12.1 | 16.9 | N/A | N/A | 0.30 | E | 3.15 | 0.60 | W | -0.88 | 3 | ||
| 06:00 |
|
6.1 | 10.4 | 13.2 | 18.5 | N/A | N/A | 0.30 | E | 3.15 | 0.30 | W | -1.30 | 4 | ||
| 07:00 |
|
5.8 | 10.4 | 13.4 | 18.8 | N/A | N/A | 0.28 | E | 3.10 | 0.20 | NW | -1.43 | 4 | ||
| 08:00 |
|
5.4 | 10.4 | 12.1 | 16.9 | N/A | N/A | 0.28 | E | 3.05 | 0.10 | N | -1.33 | 3 | ||
| 09:00 |
|
4.9 | 10.4 | 11.6 | 16.2 | N/A | N/A | 0.26 | E | 3.00 | 0.20 | NE | -1.08 | 3 | ||
| 10:00 |
|
5.2 | 10.4 | 12.3 | 17.2 | N/A | N/A | 0.26 | E | 2.95 | 0.30 | NE | -0.72 | 3 | ||
| 11:00 |
|
5.8 | 10.4 | 13.4 | 18.8 | N/A | N/A | 0.24 | E | 2.90 | 0.30 | NE | -0.30 | 4 | ||
| 12:00 |
|
6.2 | 10.4 | 14.3 | 20.0 | N/A | N/A | 0.24 | E | 2.85 | 0.20 | NE | 0.16 | 4 | ||
| 18:00 |
|
6.5 | 10.4 | 10.1 | 14.1 | N/A | N/A | 0.22 | E | 2.70 | 0.50 | W | -1.16 | 3 |
Thursday, 25 December 2025
| Time | Weather | Air Temp (°C) | Sea Temp (°C) | Wind Speed (mph) | Wind Gusts (mph) | Wind Dir | Wind Cardinal | Wave Height (m) | Wave Dir | Wave Cardinal | Wave Period (s) | Current Vel (mph) | Current Dir | Current Cardinal | Sea Level (m) | Beaufort |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 00:00 |
|
4.8 | 10.4 | 11.2 | 15.7 | N/A | N/A | 0.30 | E | 2.65 | 0.30 | NE | -0.42 | 3 | ||
| 06:00 |
|
3.5 | 10.4 | 12.1 | 16.9 | N/A | N/A | 0.32 | E | 2.65 | 0.50 | W | -1.06 | 3 | ||
| 12:00 |
|
5.0 | 10.3 | 12.3 | 17.2 | N/A | N/A | 0.34 | E | 2.65 | 0.20 | NE | -0.13 | 3 | ||
| 18:00 |
|
4.2 | 10.3 | 12.5 | 17.5 | N/A | N/A | 0.36 | E | 2.70 | 0.70 | W | -0.83 | 3 |
Friday, 26 December 2025
| Time | Weather | Air Temp (°C) | Sea Temp (°C) | Wind Speed (mph) | Wind Gusts (mph) | Wind Dir | Wind Cardinal | Wave Height (m) | Wave Dir | Wave Cardinal | Wave Period (s) | Current Vel (mph) | Current Dir | Current Cardinal | Sea Level (m) | Beaufort |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 00:00 |
|
3.9 | 10.2 | 11.6 | 16.2 | N/A | N/A | 0.30 | E | 2.55 | 0.30 | NE | -0.78 | 3 | ||
| 06:00 |
|
3.1 | 10.2 | 11.0 | 15.4 | N/A | N/A | 0.26 | E | 2.50 | 0.60 | W | -0.52 | 3 | ||
| 12:00 |
|
4.7 | 10.2 | 9.8 | 13.7 | N/A | N/A | 0.26 | E | 2.60 | 0.30 | NE | -0.43 | 3 | ||
| 18:00 |
|
4.9 | 10.1 | 11.2 | 15.7 | N/A | N/A | 0.22 | NE | 2.30 | 0.80 | SW | -0.19 | 3 |
Saturday, 27 December 2025
| Time | Weather | Air Temp (°C) | Sea Temp (°C) | Wind Speed (mph) | Wind Gusts (mph) | Wind Dir | Wind Cardinal | Wave Height (m) | Wave Dir | Wave Cardinal | Wave Period (s) | Current Vel (mph) | Current Dir | Current Cardinal | Sea Level (m) | Beaufort |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 00:00 |
|
4.8 | 10.1 | 9.6 | 13.4 | N/A | N/A | 0.18 | NE | 2.20 | 0.30 | NE | -1.02 | 3 | ||
| 06:00 |
|
5.2 | 10.1 | 12.1 | 16.9 | N/A | N/A | 0.26 | NE | 2.40 | 0.70 | SW | -0.12 | 3 | ||
| 12:00 |
|
6.3 | 10.1 | 16.1 | 22.5 | N/A | N/A | 0.48 | NE | 2.85 | 0.20 | E | -0.86 | 4 | ||
| 18:00 |
|
6.3 | 10.1 | 13.9 | 19.5 | N/A | N/A | 0.44 | NE | 2.90 | 0.70 | SW | 0.22 | 4 |
Sunday, 28 December 2025
| Time | Weather | Air Temp (°C) | Sea Temp (°C) | Wind Speed (mph) | Wind Gusts (mph) | Wind Dir | Wind Cardinal | Wave Height (m) | Wave Dir | Wave Cardinal | Wave Period (s) | Current Vel (mph) | Current Dir | Current Cardinal | Sea Level (m) | Beaufort |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 00:00 |
|
5.8 | 10.1 | 15.7 | 22.0 | N/A | N/A | 0.46 | NE | 2.90 | N/A | E | -1.71 | 4 |


