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
Sep 09 03:00
Sep 09 05:00
Sep 09 07:00
Sep 09 09:00
Sep 09 11:00
Sep 09 13:00
Sep 09 15:00
Sep 09 17:00
Sep 09 19:00
Sep 09 21:00
Sep 09 23:00
Sep 10 01:00
Sep 10 03:00
Sep 10 05:00
Sep 10 07:00
Sep 10 09:00
Sep 10 11:00
Sep 10 13:00
Sep 10 15:00
Sep 10 17:00
Sep 10 19:00
Sep 10 21:00
Sep 10 23:00
Sep 11 01:00
Sep 11 03:00
Sep 11 05:00
Sep 11 07:00
Sep 11 09:00
Sep 11 11:00
Sep 11 13:00
Sep 11 15:00
Sep 11 17:00
Sep 11 19:00
Sep 12 07:00
Sep 12 19:00
Sep 13 07:00
Sep 13 19:00
Sep 14 07:00
Sep 14 19:00
Time
Time Wave Height (m)
Sep 09 03:00 0.50
Sep 09 05:00 0.52
Sep 09 07:00 0.56
Sep 09 09:00 0.62
Sep 09 11:00 0.72
Sep 09 13:00 0.78
Sep 09 15:00 0.84
Sep 09 17:00 0.82
Sep 09 19:00 0.82
Sep 09 21:00 0.82
Sep 09 23:00 0.84
Sep 10 01:00 0.90
Sep 10 03:00 0.98
Sep 10 05:00 1.10
Sep 10 07:00 1.16
Sep 10 09:00 1.16
Sep 10 11:00 1.12
Sep 10 13:00 1.12
Sep 10 15:00 1.16
Sep 10 17:00 1.22
Sep 10 19:00 1.18
Sep 10 21:00 1.04
Sep 10 23:00 1.02
Sep 11 01:00 0.98
Sep 11 03:00 0.96
Sep 11 05:00 0.90
Sep 11 07:00 0.88
Sep 11 09:00 0.88
Sep 11 11:00 0.90
Sep 11 13:00 0.88
Sep 11 15:00 0.82
Sep 11 17:00 0.72
Sep 11 19:00 0.60
Sep 12 07:00 0.36
Sep 12 19:00 0.54
Sep 13 07:00 1.02
Sep 13 19:00 0.60
Sep 14 07:00 0.44
Sep 14 19:00 0.74
Tuesday, 9 September 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
03:00 fair_night 11.9 15.4 14.8 20.7 N/A N/A 0.50 S 3.70 0.80 W -0.46 4
04:00 clearsky_night 12.2 15.4 16.6 23.2 N/A N/A 0.50 S 3.65 0.60 W -1.21 4
05:00 fair_night 12.2 15.4 16.8 23.5 N/A N/A 0.52 S 3.55 0.30 NW -1.66 4
06:00 partlycloudy_night 12.4 15.4 18.3 25.6 N/A N/A 0.52 S 3.55 0.40 N -1.70 4
07:00 cloudy 12.2 15.4 17.0 23.8 N/A N/A 0.56 S 3.60 0.70 NE -1.42 4
08:00 partlycloudy_day 12.5 15.4 17.7 24.8 N/A N/A 0.58 S 3.70 0.80 NE -0.96 4
09:00 lightrain 13.0 15.4 19.5 27.3 N/A N/A 0.62 S 3.80 0.70 NE -0.45 4
10:00 cloudy 13.7 15.4 18.6 26.0 N/A N/A 0.66 S 3.90 0.80 NE 0.05 4
11:00 cloudy 14.1 15.4 19.7 27.6 N/A N/A 0.72 S 3.95 0.70 N 0.53 5
12:00 partlycloudy_day 14.8 15.4 17.4 24.4 N/A N/A 0.76 S 4.05 0.60 N 0.92 4
13:00 cloudy 15.4 15.4 16.6 23.2 N/A N/A 0.78 S 4.20 0.50 NW 1.03 4
14:00 lightrain 15.1 15.4 17.0 23.8 N/A N/A 0.82 S 4.40 0.60 W 0.72 4
15:00 partlycloudy_day 15.7 15.4 18.8 26.3 N/A N/A 0.84 S 4.50 0.70 W 0.07 4
16:00 cloudy 15.8 15.4 17.7 24.8 N/A N/A 0.84 S 4.55 0.60 W -0.66 4
17:00 cloudy 15.5 15.4 17.4 24.4 N/A N/A 0.82 S 4.50 0.30 NW -1.16 4
18:00 partlycloudy_day 15.8 15.4 18.8 26.3 N/A N/A 0.82 S 4.50 0.40 N -1.28 4
19:00 cloudy 15.6 15.4 17.4 24.4 N/A N/A 0.82 S 4.50 0.70 NE -1.06 4
20:00 cloudy 15.4 15.4 16.3 22.8 N/A N/A 0.82 S 4.45 0.80 NE -0.64 4
21:00 lightrain 15.5 15.4 17.4 24.4 N/A N/A 0.82 S 4.45 0.80 NE -0.15 4
22:00 cloudy 15.1 15.4 19.5 27.3 N/A N/A 0.84 S 4.45 0.70 NE 0.31 4
23:00 cloudy 14.7 15.4 19.9 27.9 N/A N/A 0.84 S 4.45 0.60 N 0.75 5
Wednesday, 10 September 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 partlycloudy_night 14.6 15.4 23.0 32.2 N/A N/A 0.86 S 4.45 0.60 N 1.11 5
01:00 partlycloudy_night 14.4 15.4 21.9 30.7 N/A N/A 0.90 S 4.50 0.50 NW 1.24 5
02:00 partlycloudy_night 14.4 15.4 22.1 30.9 N/A N/A 0.94 S 4.55 0.70 W 0.96 5
03:00 cloudy 14.2 15.4 21.0 29.4 N/A N/A 0.98 S 4.60 0.90 W 0.29 5
04:00 rain 14.1 15.4 19.2 26.9 N/A N/A 1.04 S 4.70 0.80 W -0.55 4
05:00 rain 13.4 15.4 21.9 30.7 N/A N/A 1.10 S 4.85 0.60 W -1.22 5
06:00 lightrain 13.3 15.4 19.7 27.6 N/A N/A 1.16 S 4.95 0.40 N -1.53 5
07:00 lightrain 13.0 15.4 23.0 32.2 N/A N/A 1.16 S 5.00 0.60 N -1.44 5
08:00 rain 13.2 15.4 22.4 31.4 N/A N/A 1.16 S 5.00 0.80 NE -1.07 5
09:00 heavyrain 13.1 15.4 23.5 32.9 N/A N/A 1.16 S 5.00 0.80 NE -0.58 5
10:00 lightrain 13.4 15.4 21.0 29.4 N/A N/A 1.14 S 4.95 0.80 NE -0.07 5
11:00 rain 14.3 15.4 20.8 29.1 N/A N/A 1.12 S 4.85 0.90 NE 0.43 5
12:00 rain 14.6 15.4 19.7 27.6 N/A N/A 1.10 S 4.80 0.70 N 0.90 5
13:00 rain 14.3 15.4 21.9 30.7 N/A N/A 1.12 S 4.80 0.60 N 1.21 5
14:00 heavyrain 14.0 15.4 24.6 34.4 N/A N/A 1.14 S 4.80 0.60 NW 1.19 5
15:00 rain 13.3 15.4 21.5 30.1 N/A N/A 1.16 S 4.80 0.70 W 0.74 5
16:00 heavyrainshowers_day 13.4 15.4 20.4 28.6 N/A N/A 1.18 S 4.85 0.70 W 0.02 5
17:00 heavyrain 13.0 15.4 21.3 29.8 N/A N/A 1.22 S 4.90 0.40 W -0.66 5
18:00 rain 13.1 15.4 23.0 32.2 N/A N/A 1.24 S 4.95 0.30 NW -1.03 5
19:00 lightrain 12.9 15.4 19.2 26.9 N/A N/A 1.18 S 4.90 0.60 NE -1.01 4
20:00 cloudy 12.8 15.4 26.4 37.0 N/A N/A 1.10 S 4.85 0.80 NE -0.71 6
21:00 partlycloudy_night 11.8 15.4 27.1 37.9 N/A N/A 1.04 S 4.75 0.90 NE -0.27 6
22:00 rain 11.5 15.3 24.2 33.9 N/A N/A 1.02 S 4.65 0.80 NE 0.20 5
23:00 heavyrainshowers_night 11.1 15.3 25.3 35.4 N/A N/A 1.02 S 4.50 0.70 NE 0.65 5
Thursday, 11 September 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 lightrain 11.1 15.3 25.7 36.0 N/A N/A 1.00 S 4.45 0.60 NE 1.08 6
01:00 cloudy 11.2 15.3 24.8 34.7 N/A N/A 0.98 S 4.50 0.40 N 1.41 5
02:00 cloudy 11.0 15.3 24.4 34.2 N/A N/A 0.98 S 4.55 0.30 NW 1.46 5
03:00 cloudy 10.9 15.3 26.2 36.7 N/A N/A 0.96 S 4.60 0.50 SW 1.07 6
04:00 partlycloudy_night 10.8 15.2 28.2 39.5 N/A N/A 0.94 S 4.60 0.70 SW 0.29 6
05:00 cloudy 10.8 15.2 27.5 38.5 N/A N/A 0.90 S 4.55 0.60 SW -0.58 6
06:00 cloudy 10.8 15.2 27.1 37.9 N/A N/A 0.88 S 4.50 0.20 SW -1.21 6
07:00 cloudy 10.9 15.2 27.7 38.8 N/A N/A 0.88 S 4.45 0.40 NE -1.42 6
08:00 cloudy 11.3 15.2 28.2 39.5 N/A N/A 0.88 SW 4.40 0.70 NE -1.25 6
09:00 lightrain 11.2 15.2 28.2 39.5 N/A N/A 0.88 SW 4.40 0.90 NE -0.85 6
10:00 partlycloudy_day 11.7 15.2 27.7 38.8 N/A N/A 0.88 S 4.40 0.90 NE -0.38 6
11:00 lightrain 12.4 15.1 25.3 35.4 N/A N/A 0.90 S 4.45 0.80 NE 0.10 5
12:00 partlycloudy_day 12.9 15.1 24.4 34.2 N/A N/A 0.90 S 4.45 0.60 NE 0.55 5
13:00 lightrainshowers_day 13.4 15.1 24.4 34.2 N/A N/A 0.88 S 4.45 0.40 NE 0.92 5
14:00 lightrainshowers_day 13.6 15.1 23.5 32.9 N/A N/A 0.84 S 4.40 0.20 NW 1.09 5
15:00 lightrainshowers_day 13.6 15.1 22.4 31.4 N/A N/A 0.82 S 4.40 0.40 W 0.89 5
16:00 partlycloudy_day 13.4 15.1 21.0 29.4 N/A N/A 0.76 S 4.40 0.70 SW 0.30 5
17:00 lightrainshowers_day 13.2 15.1 20.6 28.8 N/A N/A 0.72 S 4.45 0.60 SW -0.47 5
18:00 lightrain 12.5 15.1 18.8 26.3 N/A N/A 0.66 S 4.45 0.30 SW -1.10 4
19:00 partlycloudy_night 11.9 15.1 19.7 27.6 N/A N/A 0.60 S 4.50 0.10 E -1.37 5
Friday, 12 September 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
01:00 partlycloudy_night 10.8 15.1 13.6 19.0 N/A N/A 0.40 S 4.40 0.50 NE 1.01 4
07:00 lightrainshowers_day 10.2 14.9 14.8 20.7 N/A N/A 0.36 SW 4.10 0.10 S -1.34 4
13:00 rainshowers_day 13.3 14.9 16.3 22.8 N/A N/A 0.50 SW 3.35 0.60 NE 0.47 4
19:00 heavyrain 12.6 14.9 12.8 17.9 N/A N/A 0.54 S 3.70 0.20 SW -1.23 4
Saturday, 13 September 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
01:00 rain 10.6 14.8 15.0 21.0 N/A N/A 0.78 S 4.05 0.70 NE 0.52 4
07:00 lightrainshowers_day 10.3 14.8 17.7 24.8 N/A N/A 1.02 S 4.30 0.10 W -0.82 4
13:00 cloudy 11.7 14.8 18.1 25.3 N/A N/A 1.04 SW 4.55 0.80 NE 0.27 4
19:00 partlycloudy_night 12.4 14.8 10.7 15.0 N/A N/A 0.60 SW 4.25 0.30 SW -0.70 3
Sunday, 14 September 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
01:00 lightrain 11.4 14.8 12.1 16.9 N/A N/A 0.52 SW 4.00 0.70 NE 0.04 3
07:00 rain 11.3 14.8 12.5 17.5 N/A N/A 0.44 S 4.15 0.40 W -0.19 3
13:00 heavyrain 12.6 14.9 20.8 29.1 N/A N/A 0.46 S 3.55 0.70 N 0.19 5
19:00 heavyrainshowers_night 14.4 15.1 22.8 31.9 N/A N/A 0.74 S 3.95 0.40 W 0.51 5
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