Try the new version of this page on the Check for flooding beta service (what's 'beta'?)

Tidal level Dorset Coast at Portland

Check for flood warnings in this area

Latest recorded level 0.29m at 7:00am Monday 27 September 2021.

Tidal levels at this location in the last 5 days

Now
  • Measured level
  • Highest level on record 2.02m

You're missing out. A graph should be visible here.
Upgrade your browser to see and use all the features of this service.


You're missing out. A graph should be visible here.

Javascript must be enabled.

Observed data

DateTime Value Error
0.29 false
0.331 false
0.328 false
0.31 false
0.339 false
0.218 false
0.208 false
0.202 false
0.145 false
0.114 false
0.048 false
-0.099 false
-0.132 false
-0.188 false
-0.207 false
-0.205 false
-0.206 false
-0.147 false
-0.068 false
0.035 false
0.094 false
0.196 false
0.291 false
0.388 false
0.506 false
0.574 false
0.676 false
0.733 false
0.792 false
0.875 false
0.914 false
0.93 false
0.968 false
0.972 false
0.986 false
0.991 false
0.976 false
0.943 false
0.868 false
0.787 false
0.688 false
0.574 false
0.47 false
0.377 false
0.289 false
0.188 false
0.131 false
0.052 false
0.003 false
-0.001 false
0.028 false
0.045 false
0.046 false
0.066 false
0.096 false
0.074 false
0.052 false
0.025 false
-0.001 false
-0.027 false
-0.102 false
-0.206 false
-0.274 false
-0.298 false
-0.319 false
-0.26 false
-0.221 false
-0.097 false
-0.021 false
0.052 false
0.173 false
0.318 false
0.44 false
0.549 false
0.612 false
0.738 false
0.811 false
0.887 false
0.934 false
0.987 false
1.021 false
1.039 false
1.049 false
1.048 false
1.057 false
1.033 false
0.98 false
0.919 false
0.829 false
0.716 false
0.61 false
0.476 false
0.348 false
0.244 false
0.124 false
0.005 false
-0.078 false
-0.117 false
-0.134 false
-0.122 false
-0.109 false
-0.112 false
-0.101 false
-0.09 false
-0.111 false
-0.136 false
-0.145 false
-0.155 false
-0.191 false
-0.272 false
-0.358 false
-0.409 false
-0.414 false
-0.392 false
-0.315 false
-0.223 false
-0.126 false
0 false
0.115 false
0.241 false
0.379 false
0.521 false
0.634 false
0.744 false
0.844 false
0.92 false
0.995 false
1.048 false
1.102 false
1.126 false
1.141 false
1.132 false
1.139 false
1.12 false
1.096 false
1.037 false
0.977 false
0.872 false
0.75 false
0.618 false
0.475 false
0.348 false
0.224 false
0.1 false
-0.028 false
-0.112 false
-0.153 false
-0.165 false
-0.159 false
-0.15 false
-0.128 false
-0.112 false
-0.115 false
-0.123 false
-0.159 false
-0.18 false
-0.187 false
-0.23 false
-0.306 false
-0.402 false
-0.468 false
-0.504 false
-0.477 false
-0.413 false
-0.332 false
-0.218 false
-0.091 false
0.054 false
0.199 false
0.346 false
0.464 false
0.58 false
0.72 false
0.821 false
0.905 false
0.973 false
1.028 false
1.077 false
1.145 false
1.169 false
1.156 false
1.181 false
1.168 false
1.143 false
1.094 false
1.021 false
0.893 false
0.748 false
0.611 false
0.444 false
0.292 false
0.133 false
-0.01 false
-0.138 false
-0.244 false
-0.316 false
-0.313 false
-0.309 false
-0.273 false
-0.247 false
-0.218 false
-0.21 false
-0.201 false
-0.218 false
-0.21 false
-0.212 false
-0.237 false
-0.307 false
-0.396 false
-0.484 false
-0.508 false
-0.475 false
-0.399 false
-0.289 false
-0.166 false
-0.024 false
0.137 false
0.291 false
0.448 false
0.589 false
0.72 false
0.84 false
0.942 false
1.027 false
1.098 false
1.153 false
1.188 false
1.217 false
1.217 false
1.213 false
1.204 false
1.177 false
1.132 false
1.069 false
0.978 false
0.873 false
0.716 false
0.545 false
0.384 false
0.225 false
0.06 false
-0.12 false
-0.264 false
-0.368 false
-0.429 false
-0.449 false
-0.463 false
-0.43 false
-0.42 false
-0.418 false
-0.419 false
-0.419 false
-0.416 false
-0.44 false
-0.453 false
-0.485 false
-0.557 false
-0.638 false
-0.727 false
-0.749 false
-0.694 false
-0.57 false
-0.457 false
-0.311 false
-0.153 false
0.009 false
0.184 false
0.323 false
0.466 false
0.613 false
0.742 false
0.843 false
0.931 false
1.001 false
1.071 false
1.114 false
1.146 false
1.156 false
1.178 false
1.171 false
1.157 false
1.13 false
1.063 false
0.965 false
0.853 false
0.704 false
0.513 false
0.348 false
0.187 false
0.032 false
-0.15 false
-0.288 false
-0.398 false
-0.453 false
-0.451 false
-0.426 false
-0.38 false
-0.337 false
-0.306 false
-0.305 false
-0.264 false
-0.263 false
-0.262 false
-0.25 false
-0.261 false
-0.328 false
-0.431 false
-0.515 false
-0.53 false
-0.482 false
-0.392 false
-0.273 false
-0.116 false
0.058 false
0.23 false
0.398 false
0.555 false
0.721 false
0.843 false
0.981 false
1.089 false
1.175 false
1.227 false
1.284 false
1.32 false
1.352 false
1.344 false
1.344 false
1.336 false
1.299 false
1.257 false
1.183 false
1.078 false
0.938 false
0.758 false
0.579 false
0.384 false
0.22 false
0.035 false
-0.153 false
-0.314 false
-0.438 false
-0.511 false
-0.517 false
-0.507 false
-0.484 false
-0.464 false
-0.429 false
-0.417 false
-0.412 false
-0.413 false
-0.422 false
-0.408 false
-0.453 false
-0.537 false
-0.644 false
-0.734 false
-0.78 false
-0.729 false
-0.608 false
-0.488 false
-0.336 false
-0.143 false
0.019 false
0.204 false
0.373 false
0.523 false
0.653 false
0.786 false
0.881 false
0.977 false
1.054 false
1.093 false
1.11 false
1.151 false
1.162 false
1.143 false
1.129 false
1.102 false
1.056 false
0.987 false
0.895 false
0.755 false
0.582 false
0.409 false
0.206 false
0.02 false
-0.173 false
-0.366 false
-0.543 false
-0.68 false
-0.749 false
-0.762 false
-0.749 false
-0.721 false
-0.7 false
-0.671 false
-0.636 false
-0.603 false
-0.607 false
-0.602 false
-0.575 false
-0.566 false
-0.646 false
-0.726 false
-0.789 false
-0.779 false
-0.722 false
-0.583 false
-0.428 false
-0.257 false
-0.062 false
0.12 false
0.309 false
0.483 false
0.673 false
0.817 false
0.956 false
1.067 false
1.163 false
1.237 false
1.282 false
1.322 false
1.356 false
1.361 false
1.352 false
1.344 false
1.314 false
1.275 false
1.203 false
1.092 false
0.963 false
0.778 false
0.603 false
0.395 false
0.204 false
0.01 false
-0.171 false
-0.328 false
-0.473 false
-0.549 false
-0.571 false
-0.564 false
-0.523 false
-0.489 false
-0.468 false
-0.458 false
-0.442 false
-0.44 false
-0.461 false
-0.453 false
-0.471 false
-0.552 false
-0.646 false
-0.741 false
-0.782 false
-0.752 false
-0.636 false
-0.493 false
-0.349 false
-0.166 false
0.016 false
0.191 false
0.365 false
0.52 false
0.653 false
0.784 false
0.887 false
0.981 false
1.042 false
1.074 false
1.111 false
1.135 false
1.137 false
1.135 false
1.12 false
1.086 false
1.03 false
0.967 false
0.86 false

Forecast data




Share this page