|Year first constructed||1806 (first)|
|Year first lit||1852|
|Tower shape||cylinder tower with balcony and lantern|
|Markings / pattern||unpainted brick|
|Tower height||27 metres (89 ft)|
|Focal height||33 metres (108 ft)|
|Range||10 nautical miles (19 km; 12 mi)|
|Characteristic||LFl W 20 s.|
|Estonia number||EVA 100|
The original wooden lighthouse was built in 1806, and replaced with the 20 metre concrete structure in 1852. Due to the harsh Nordic climate, the outer bricks of the lighthouse have heavily deteriorated and a new layer of bricks (including an additional 7 metres in height) were added in 1871. The lantern room of the lighthouse was built by a Latvian based factory in Liepāja, and the dioptric apparatus was made by Chance Brothers & Co in Great Britain.
Due to the continuous deterioration of the lighthouse's outer brick surface, the lighthouse was reinforced with a layer of concrete after World War II; this layer was removed in 1998. Next to the lighthouse is the lighthouse keeper's house.
- Rowlett, Russ. "Lighthouses of Northern Estonia". The Lighthouse Directory. University of North Carolina at Chapel Hill. Retrieved 7 May 2019.
- National Monument Register
- "Mohni Lighthouse". Estonian Lighthouse Society. Archived from the original on 1 October 2015. Retrieved 26 September 2015.
- "Mohni Lighthouse". Register Muinas. Archived from the original on 27 September 2015. Retrieved 26 September 2015.
- "Photograph". Pit Delfi. Archived from the original on 27 September 2015. Retrieved 26 September 2015.
- "Navigatsioonimärgi 100, Mohni tuletorn andmed". Navigatsioonimärkide andmekogu (in Estonian). 5 March 2018. Archived from the original on 5 March 2018. Retrieved 7 May 2019.
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