A very useful Freeware/Careware program to calculate tide times and heights.

Unfortunately, due to NERC’s restrictions on the availability of tidal prediction parameters, there are comparatively few British locations for which tides can be predicted, so you may have to interpolate.

Contrary to standard convention, the tide times are given in British Summer Time when this applies - more convenient when you realise, but most annoying when you don’t! And heights are in feet.