Marine · Tides

Port St Mary tide times

High and low water at Port St Mary for Wednesday 14 October and the six days after. Isle of Man time; heights in metres above chart datum.

Port St Mary Wednesday 14 October

Last high tide: 14:02Today · Wed 14 OctHeight 5.6 m1 h 13 min ago
Next high tide: 02:21Tomorrow · Thu 15 OctHeight 5.4 min 11 h 06 min

Isle of Man time · Predicted heights

HW 01:45 5.7 m(high water)
LW 07:48 0.9 m(low water)
HW 14:02 5.6 m(high water)
LW 20:07 1.0 m(low water)
Daylight 07:43–18:24

Next seven days Wed 14 Oct – Tue 20 Oct

High and low water at Port St Mary, Wednesday 14 October to Tuesday 20 October. Isle of Man time; heights in metres above chart datum.
Date	High water	Low water	Springs / neaps
Wed 14 OctTodaySprings91%	01:45 5.7 m14:02 5.6 m	07:48 0.9 m20:07 1.0 m	Springs91%
Thu 15 Oct81%	02:21 5.4 m14:39 5.4 m	08:20 1.2 m20:43 1.2 m	81%
Fri 16 Oct69%	03:01 5.1 m15:19 5.2 m	08:55 1.4 m21:24 1.5 m	69%
Sat 17 OctNeaps57%	03:46 4.8 m16:05 4.9 m	09:35 1.7 m22:13 1.7 m	Neaps57%
Sun 18 OctFirst quarterNeaps45%	04:41 4.5 m17:04 4.7 m	10:27 2.0 m23:19 1.9 m	Neaps45%
Mon 19 OctNeaps38%	05:54 4.3 m18:20 4.5 m	11:41 2.1 m	Neaps38%
Tue 20 OctNeaps41%	07:21 4.3 m19:41 4.6 m	00:41 1.9 m13:09 2.1 m	Neaps41%

Local secondary port on Port Erin, differences fitted to official UKHO-derived times; typical agreement about 5 min and 0.05 m. Springs and neaps go by the day's largest tidal range at Liverpool as a percentage of mean springs: springs at 90% or more, neaps at 65% or less. The moon marks new, first quarter, full and last quarter.

Tidal stream atlasAnimated streams round the island, 50 years of tide tables

Not for navigation. Heights are astronomical predictions only; weather and surge are not included. Check Admiralty tables and local harbour information before going afloat.

Sources: Harmonic constants TICON-4 (Hart-Davis et al. 2025, CC BY 4.0) via the Neaps tide database; Douglas, Ramsey, Peel, Port St Mary and Calf Sound worked from Port Erin with differences fitted to UK Hydrographic Office-derived predictions. Times shown in Isle of Man time.