Tide times · Lochranza

High and low water for the next 7 days, with the effect of air pressure and wind. Heights in metres above chart datum.

Now

2.7 m

Rising · next high water 11:57, 3.60 m expected

━ tide + pressure ┅ with wind surge

Time		Tide	Pressure	Wind surge	Expected
Today
05:22	Low	1.03 m	–	–	1.03 m
11:57	High	3.27 m	+17 cm	+16 cm	3.60 m
17:22	Low	0.55 m	+9 cm	+13 cm	0.77 m
Wednesday 28 October
00:37	High	2.91 m	+5 cm	+17 cm	3.13 m
05:57	Low	0.26 m	+2 cm	+22 cm	0.50 m
12:52	High	3.07 m	−4 cm	+11 cm	3.14 m
18:02	Low	0.23 m	−7 cm	+6 cm	0.22 m
Thursday 29 October
01:37	High	3.00 m	−9 cm	+4 cm	2.96 m
06:22	Low	0.43 m	−9 cm	+6 cm	0.39 m
13:47	High	3.02 m	−10 cm	+5 cm	2.97 m
18:42	Low	0.48 m	−10 cm	+5 cm	0.43 m
Friday 30 October
02:12	High	3.15 m	−9 cm	+4 cm	3.10 m
07:15	Low	0.66 m	−4 cm	+8 cm	0.70 m
14:32	High	3.00 m	−8 cm	+9 cm	3.01 m
19:47	Low	0.42 m	−12 cm	+0 cm	0.30 m
Saturday 31 October
03:02	High	2.79 m	−13 cm	+0 cm	2.66 m
08:12	Low	0.73 m	−13 cm	+0 cm	0.60 m
15:15	High	2.78 m	−15 cm	+0 cm	2.63 m
21:00	Low	0.33 m	−15 cm	+0 cm	0.18 m
Sunday 1 November
04:00	High	2.51 m	−22 cm	+0 cm	2.29 m
09:30	Low	0.69 m	−25 cm	+0 cm	0.44 m
16:22	High	2.61 m	−27 cm	+0 cm	2.34 m
22:17	Low	0.34 m	−28 cm	+0 cm	0.06 m
Monday 2 November
05:22	High	2.41 m	−28 cm	+0 cm	2.13 m
10:47	Low	0.81 m	−28 cm	+0 cm	0.53 m
17:37	High	2.59 m	−25 cm	+0 cm	2.34 m
23:37	Low	0.32 m	−24 cm	+0 cm	0.08 m

How the heights are worked out

Tide is the astronomical prediction from the Open-Meteo sea-level model, calibrated against the CMAL Brodick pier gauge.
Pressure: water rises about 1 cm for every hPa that pressure falls below 1013 hPa, and drops when pressure is high. A deep 970 hPa low adds about 43 cm.
Wind surge is our estimate of south-westerly winds pushing water up the Firth of Clyde. It uses the mean wind over the 6 hours before each tide.
Expected is the sum of the three: the height most likely to actually be reached.

Not for navigation

Times may differ from official tables by 10–20 minutes, and surge is an estimate. Use UKHO / Admiralty tide tables for navigation. For coastal flooding, check SEPA flood updates.