| Newlyn Tidal Observatory | |
|---|---|
| GLOSS ID 241 | |
 View of Newlyn Harbour with the lighthouse and Tidal Observatory to its right | |
| Type | Tide gauge |
| Location | Newlyn, Cornwall, England |
| Coordinates | 50°06′11″N 5°32′34″W / 50.103000°N 5.542806°W |
| Built | 1915 |
| Owner | National Oceanography Centre[1] |
| Website | ntslf |
Listed Building – Grade II | |
| Official name | Newlyn tidal observatory and part of the south pier |
| Designated | 11 December 2018 |
| Reference no. | 1460225 |
  Location of Newlyn Tidal Observatory in Cornwall | |
Newlyn Tidal Observatory is a grade II listed tide gauge hut on the South Pier in Newlyn, Cornwall in England. Measurements of sea level taken at the observatory between 1915 and 1921 were used to define the reference level, Ordnance Datum Newlyn, for height measurement on the British mainland. The tide gauge has collected over 100 years of observations which has significantly contributed to studies in sea level science.
- ^ "Newlyn". National Oceanography Centre. Archived from the original on 3 October 2023. Retrieved 3 October 2023.