Fort · near Portsmouth · Hampshire

Horse Sand Fort

Horse Sand Fort is a sea fort in the Solent off Portsmouth, Hampshire. This one stands 3.1 km south of Portsmouth. It counts as a scheduled monument.

Photo: Horse Sand Fort, Graham Horn (CC BY-SA 2.0)

Where

3.1 km

south of Portsmouth

How well known

Top 23%

#1,932 of 8,556 places we list

Warmest months

May–Sep

highs of 18–23°C

In brief

Fort near Portsmouth

Just outside Portsmouth

Horse Sand Fort is 3.1 km south of Portsmouth. Towns near it ↓

Scheduled monument

On the official list of protected heritage; Portsmouth has 490 listed buildings in all, on its History page. About ↓

Written from OpenStreetMap, Wikidata, the ONS built-up areas and Met Office 1991–2020 averages.

When to go

Weather through the year

For warmth, aim for May to September (18–23°C highs in Portsmouth).

Jan9° / 3°86 mm

Feb9° / 3°60 mm

Mar12° / 4°50 mm

Apr15° / 6°53 mm

May18° / 8°43 mm

Jun21° / 11°50 mm

Jul23° / 13°46 mm

Aug23° / 13°60 mm

Sep20° / 11°58 mm

Oct16° / 9°88 mm

Nov12° / 6°90 mm

Dec10° / 3°89 mm

Green months are the warmest. Typical afternoon highs and night lows in Portsmouth, and rain in a month. Met Office HadUK-Grid 1991–2020 averages for Portsmouth. Opening times change through the year: check before you go. Portsmouth’s full climate →

About

Horse Sand Fort

Its Wikipedia coverage spans 4 languages. Top of the 110 other places within 15 km is HMS Victory, 6.3 km off.

Portsmouth’s listed buildings and monuments →

Type: Fort
Listed: Scheduled monument
Wikipedias: Covered in 4 languages
Town: 3.1 km south of Portsmouth
Official site: solentforts.com

Facts: Wikidata (CC0) and OpenStreetMap (© OpenStreetMap contributors).

The map

Locating Horse Sand Fort

Orange shows Horse Sand Fort; numbers mark the places near it.

Towns near it

The nearest towns to Horse Sand Fort

Of the 4, Portsmouth is the largest, at 223,324 people. Each town here links to its own guide.

1 · 3.1 km north of it

Portsmouth

223,324 people · 64 places to visit

2 · 4.1 km southwest of it

Seaview and Nettlestone

2,053 people · 23 places to visit

3 · 4.7 km southwest of it

Ryde

24,094 people · 28 places to visit

4 · 4.9 km southwest of it

Pondwell

470 people · 20 places to visit

Compare the 4 towns

Town	Where Horse Sand Fort is	People	Places to visit
Portsmouth	3.1 km north of it	223,324	64
Seaview and Nettlestone	4.1 km southwest of it	2,053	23
Ryde	4.7 km southwest of it	24,094	28
Pondwell	4.9 km southwest of it	470	20

Make a day of it

Also near Horse Sand Fort

Also close at hand are 2 historic ships, 2 castles and a museum, among 110 within 15 km.

Historic shipHMS Victory6.3 km away 2

MuseumMary Rose6 km away 3

Historic shipHMS Warrior5.9 km away 4

Historic house · English HeritageOsborne House14 km away 5

AttractionSpinnaker Tower5.7 km away 6

CastleSouthsea Castle3.3 km away 7

Castle · English HeritagePortchester Castle10 km away 8

CathedralPortsmouth Cathedral5 km away

Within 15 km, close and well known first. Numbers match the map.

Your questions on Horse Sand Fort

Where is Horse Sand Fort?

Horse Sand Fort is 3.1 km south of Portsmouth, Hampshire.

What is Horse Sand Fort?

Sea fort in the Solent off Portsmouth, Hampshire, England, UK.

When is the best time to visit Horse Sand Fort?

May to September are the warmest months in Portsmouth, with afternoon highs of 18–23°C (Met Office 1991–2020 averages).

Is Horse Sand Fort a listed building?

Yes: scheduled monument.

What else is there to see near Horse Sand Fort?

Within 15 km: HMS Victory (6.3 km), Mary Rose (6 km), HMS Warrior (5.9 km) and Osborne House (14 km).

Places: OpenStreetMap (© OpenStreetMap contributors, Open Database Licence) and Wikidata (CC0), placed in the ONS 2022 built-up area (Open Government Licence v3.0). Visitor counts are the latest Wikidata gives, with their year.

Photos: each place’s Wikidata image, from Wikimedia Commons under the licence below (our copy, resized).

Photo credits (9)

Horse Sand Fort: Graham Horn, CC BY-SA 2.0, Wikimedia Commons
HMS Victory: David Dixon, CC BY-SA 2.0, Wikimedia Commons
Mary Rose: Mary Rose Trust, CC BY-SA 3.0, Wikimedia Commons
HMS Warrior: geni, CC BY-SA 4.0, Wikimedia Commons
Osborne House: Humac45, CC BY-SA 3.0, Wikimedia Commons
Spinnaker Tower: Chris Downer, CC BY-SA 2.0, Wikimedia Commons
Southsea Castle: Geni, CC BY-SA 4.0, Wikimedia Commons
Portchester Castle: Matthew Folley from UK, CC BY 2.0, Wikimedia Commons
Portsmouth Cathedral: JohnArmagh, Public domain, Wikimedia Commons

Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.