Daily Predictions Sheet
Portsmouth
Portsmouth
Tuesday 31st March 2026
10 minute actual readings are in RED
10 minute predicted readings are in BLUE
Time xx00xx10xx20xx30xx40xx50 xx00xx10xx20xx30xx40xx50
Tue 31st Mar
00:00 --- 0416 0407 0396 0382 0367 0350 --- 0332 0311 0290 0268 0246 0224
02:00 --- 0202 0183 0165 0150 0137 0126 --- 0119 0114 0112 0113 0115 0119
04:00 --- 0125 0131 0137 0144 0150 0157 --- 0162 0167 0172 0176 0181 0185
06:00 --- 0189 0193 0198 0204 0210 0217 --- 0225 0235 0245 0257 0270 0285
08:00 --- 0300 0316 0332 0348 0364 0379 --- 0392 0403 0413 0421 0426 0430
10:00 --- 0432 0433 0433 0432 0432 0431 --- 0430 0430 0429 0427 0425 0422
12:00 --- 0417 0411 0404 0395 0383 0370 --- 0355 0337 0318 0297 0275 0252
14:00 --- 0229 0205 0183 0162 0143 0126 --- 0112 0101 0094 0089 0087 0088
16:00 --- 0092 0097 0104 0112 0120 0129 --- 0137 0145 0152 0159 0165 0170
18:00 --- 0175 0180 0185 0189 0194 0200 --- 0206 0214 0222 0231 0242 0254
20:00 --- 0268 0283 0299 0316 0334 0351 --- 0368 0385 0400 0413 0425 0434
22:00 --- 0442 0447 0451 0453 0454 0455 --- 0455 0455 0455 0454 0453 0452

First reading starts at 0000Hrs GMT. Read Across. Readings are Centimetres above Chart Datum (CD). Dates/Times are in UTC.

©Associated British Ports, 2026. Tidal Predictions are reproduced with kind permission of the United Kingdom Hydrographic Office and Controller of HMSO. Crown copyright reserved. The information contained in this report is subject to change at short notice. Although every effort is made to ensure its accuracy, users should not rely upon it without making their own inquiries.