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Tidal level Dorset Coast at Portland

Check for flood warnings in this area

Latest recorded level -0.62m at 7:00am Monday 21 September 2020.

Tidal levels at this location in the last 5 days

Now
  • Measured level
  • Highest level on record 2.02m

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Observed data

DateTime Value Error
-0.625 false
-0.781 false
-0.859 false
-0.868 false
-0.84 false
-0.78 false
-0.73 false
-0.685 false
-0.645 false
-0.596 false
-0.58 false
-0.542 false
-0.526 false
-0.507 false
-0.568 false
-0.671 false
-0.767 false
-0.779 false
-0.726 false
-0.611 false
-0.436 false
-0.239 false
-0.019 false
0.214 false
0.426 false
0.624 false
0.816 false
0.983 false
1.125 false
1.271 false
1.377 false
1.451 false
1.505 false
1.539 false
1.557 false
1.572 false
1.576 false
1.552 false
1.515 false
1.471 false
1.404 false
1.284 false
1.159 false
0.98 false
0.76 false
0.519 false
0.276 false
0.039 false
-0.185 false
-0.406 false
-0.591 false
-0.704 false
-0.748 false
-0.745 false
-0.705 false
-0.647 false
-0.619 false
-0.592 false
-0.541 false
-0.516 false
-0.51 false
-0.463 false
-0.444 false
-0.502 false
-0.593 false
-0.701 false
-0.778 false
-0.76 false
-0.656 false
-0.504 false
-0.307 false
-0.091 false
0.1 false
0.341 false
0.538 false
0.737 false
0.897 false
1.032 false
1.168 false
1.279 false
1.371 false
1.404 false
1.428 false
1.453 false
1.472 false
1.491 false
1.47 false
1.408 false
1.345 false
1.293 false
1.185 false
1.054 false
0.876 false
0.645 false
0.395 false
0.146 false
-0.106 false
-0.347 false
-0.598 false
-0.798 false
-0.968 false
-1.001 false
-1.001 false
-1.001 false
-0.961 false
-0.895 false
-0.838 false
-0.788 false
-0.732 false
-0.699 false
-0.661 false
-0.576 false
-0.587 false
-0.642 false
-0.747 false
-0.806 false
-0.847 false
-0.754 false
-0.581 false
-0.393 false
-0.168 false
0.061 false
0.301 false
0.517 false
0.747 false
0.956 false
1.117 false
1.259 false
1.402 false
1.528 false
1.606 false
1.647 false
1.651 false
1.647 false
1.696 false
1.695 false
1.645 false
1.595 false
1.556 false
1.473 false
1.364 false
1.215 false
1.001 false
0.771 false
0.527 false
0.27 false
0.009 false
-0.237 false
-0.461 false
-0.644 false
-0.77 false
-0.808 false
-0.786 false
-0.749 false
-0.693 false
-0.679 false
-0.659 false
-0.602 false
-0.574 false
-0.551 false
-0.516 false
-0.501 false
-0.568 false
-0.654 false
-0.753 false
-0.805 false
-0.767 false
-0.637 false
-0.492 false
-0.262 false
-0.046 false
0.185 false
0.416 false
0.643 false
0.825 false
0.967 false
1.132 false
1.245 false
1.336 false
1.407 false
1.437 false
1.466 false
1.517 false
1.536 false
1.49 false
1.445 false
1.401 false
1.353 false
1.291 false
1.208 false
1.017 false
0.826 false
0.577 false
0.31 false
0.072 false
-0.19 false
-0.438 false
-0.68 false
-0.893 false
-1.001 false
-1.001 false
-1.001 false
-1.001 false
-1.001 false
-0.932 false
-0.89 false
-0.865 false
-0.791 false
-0.758 false
-0.712 false
-0.672 false
-0.648 false
-0.716 false
-0.809 false
-0.888 false
-0.888 false
-0.776 false
-0.609 false
-0.421 false
-0.193 false
0.052 false
0.272 false
0.507 false
0.715 false
0.893 false
1.085 false
1.217 false
1.338 false
1.463 false
1.511 false
1.559 false
1.568 false
1.589 false
1.609 false
1.611 false
1.56 false
1.514 false
1.467 false
1.371 false
1.272 false
1.103 false
0.87 false
0.651 false
0.404 false
0.16 false
-0.066 false
-0.322 false
-0.576 false
-0.734 false
-0.81 false
-0.822 false
-0.835 false
-0.802 false
-0.756 false
-0.733 false
-0.719 false
-0.684 false
-0.712 false
-0.668 false
-0.635 false
-0.626 false
-0.704 false
-0.794 false
-0.891 false
-0.869 false
-0.813 false
-0.701 false
-0.549 false
-0.344 false
-0.121 false
0.091 false
0.287 false
0.483 false
0.647 false
0.816 false
0.951 false
1.059 false
1.167 false
1.227 false
1.279 false
1.283 false
1.34 false
1.319 false
1.286 false
1.247 false
1.172 false
1.13 false
1.04 false
0.93 false
0.765 false
0.556 false
0.332 false
0.069 false
-0.17 false
-0.397 false
-0.612 false
-0.846 false
-1.001 false
-1.001 false
-1.001 false
-1.001 false
-1.001 false
-1.001 false
-1.001 false
-0.972 false
-0.917 false
-0.887 false
-0.847 false
-0.817 false
-0.774 false
-0.78 false
-0.846 false
-0.923 false
-0.982 false
-0.964 false
-0.843 false
-0.688 false
-0.488 false
-0.302 false
-0.086 false
0.108 false
0.324 false
0.542 false
0.706 false
0.865 false
1.013 false
1.119 false
1.211 false
1.257 false
1.306 false
1.318 false
1.322 false
1.353 false
1.326 false
1.291 false
1.256 false
1.202 false
1.103 false
0.978 false
0.826 false
0.642 false
0.422 false
0.214 false
-0.006 false
-0.216 false
-0.425 false
-0.603 false
-0.735 false
-0.799 false
-0.843 false
-0.815 false
-0.792 false
-0.753 false
-0.746 false
-0.737 false
-0.736 false
-0.715 false
-0.721 false
-0.678 false
-0.701 false
-0.779 false
-0.837 false
-0.895 false
-0.882 false
-0.818 false
-0.693 false
-0.555 false
-0.36 false
-0.156 false
0.014 false
0.174 false
0.354 false
0.517 false
0.659 false
0.782 false
0.909 false
1 false
1.052 false
1.093 false
1.118 false
1.151 false
1.162 false
1.143 false
1.125 false
1.09 false
1.033 false
0.95 false
0.857 false
0.713 false
0.538 false
0.358 false
0.137 false
-0.064 false
-0.273 false
-0.477 false
-0.641 false
-0.76 false
-0.854 false
-0.88 false
-0.886 false
-0.827 false
-0.76 false
-0.722 false
-0.671 false
-0.617 false
-0.567 false
-0.527 false
-0.498 false
-0.472 false
-0.458 false
-0.492 false
-0.54 false
-0.566 false
-0.577 false
-0.501 false
-0.377 false
-0.258 false
-0.094 false
0.072 false
0.239 false
0.396 false
0.575 false
0.729 false
0.853 false
0.975 false
1.073 false
1.153 false
1.226 false
1.271 false
1.306 false
1.334 false
1.34 false
1.329 false
1.318 false
1.283 false
1.229 false
1.164 false
1.077 false
0.94 false
0.765 false
0.589 false
0.402 false
0.228 false
0.07 false
-0.091 false
-0.24 false
-0.34 false
-0.39 false
-0.407 false
-0.398 false
-0.372 false
-0.352 false
-0.324 false
-0.311 false
-0.306 false
-0.311 false
-0.307 false
-0.306 false
-0.314 false
-0.359 false
-0.425 false
-0.492 false
-0.515 false
-0.491 false
-0.405 false
-0.3 false
-0.163 false
-0.039 false
0.098 false
0.235 false
0.371 false
0.5 false
0.604 false
0.704 false
0.791 false
0.866 false
0.927 false
0.963 false
1 false
1.019 false

Forecast data




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