Castle · Portsmouth · Hampshire

Southsea Castle

Southsea Castle is a castle in Portsmouth, Hampshire. It is on the official list as a scheduled monument. There are 107 more places to see within 15 km, beginning with HMS Victory (3 km).

Photo: Southsea Castle, Geni (CC BY-SA 4.0)

Where

In Portsmouth

inside the built-up area

Run by

Portsmouth City Council

the operator on record

How well known

Top 8%

#682 of 8,556 places we list

Warmest months

May–Sep

highs of 18–23°C

In brief

Castle in Portsmouth

One of the best-known places to visit in England, Scotland, Wales and Northern Ireland

#682 of the 8,556 museums, castles, gardens and other attractions we list, by how widely it is covered (10 Wikipedias). About ↓

Inside Portsmouth

Southsea Castle is inside Portsmouth’s built-up area, with 42 more places to visit within 5 km. 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

The year in Portsmouth

In Portsmouth the warm season is May to September, with highs of 18–23°C.

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

Southsea Castle

Its operator is Portsmouth City Council. Readers can find it on Wikipedia in 10 languages.

Portsmouth’s listed buildings and monuments →

Type: Castle
Run by: Portsmouth City Council
Listed: Scheduled monument
Wikipedias: Covered in 10 languages
Town: in Portsmouth
Official site: southseacastle.co.uk

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

Plan your visit

How to visit

Entrance feesFreeNo entrance fee.

Hours and entry: OpenStreetMap contributors. They change through the year: check its site before you go.

The map

Mapping Southsea Castle

Orange marks Southsea Castle, and the numbered points match the list of places below.

Towns near it

Where people come from

The biggest base of the 8 is Portsmouth (223,324 people). The list runs from its own town outward.

1 · It’s in town

Portsmouth

223,324 people · 64 places to visit

2 · 2.1 km northwest of it

Gosport

70,120 people · 57 places to visit

3 · 7.3 km south of it

Seaview and Nettlestone

2,053 people · 23 places to visit

4 · 7.5 km southwest of it

Pondwell

470 people · 20 places to visit

Compare the 8 towns

Town	Where Southsea Castle is	People	Places to visit
Portsmouth	It’s in town	223,324	64
Gosport	2.1 km northwest of it	70,120	57
Seaview and Nettlestone	7.3 km south of it	2,053	23
Pondwell	7.5 km southwest of it	470	20
Ryde	8 km southwest of it	24,094	28
St Helens	9.3 km south of it	941	23
Bembridge	10 km south of it	3,564	18
Fishbourne	11 km southwest of it	385	20

Make a day of it

More to see nearby

Our list has 107 more within 15 km, among them 2 historic ships, 2 cathedrals and a museum.

Historic shipHMS Victory3 km away 2

MuseumMary Rose2.7 km away 3

Historic shipHMS Warrior2.7 km away 4

AttractionSpinnaker Tower2.4 km away 5

CathedralPortsmouth Cathedral1.8 km away 6

Historic house · English HeritageOsborne House13 km away 7

Castle · English HeritagePortchester Castle6.8 km away 8

CathedralCathedral of St John the Evangelist2.5 km away

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

Questions before you go

Where is Southsea Castle?

Southsea Castle is in Portsmouth, Hampshire, inside the town’s built-up area.

What is Southsea Castle?

Castle in Portsmouth, Hampshire, England, UK.

Who runs Southsea Castle?

Portsmouth City Council.

When is the best time to visit Southsea Castle?

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

Is Southsea Castle a listed building?

Yes: scheduled monument.

What else is there to see near Southsea Castle?

Within 15 km: HMS Victory (3 km), Mary Rose (2.7 km), HMS Warrior (2.7 km) and Spinnaker Tower (2.4 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)

Southsea Castle: Geni, CC BY-SA 4.0, 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
Spinnaker Tower: Chris Downer, CC BY-SA 2.0, Wikimedia Commons
Portsmouth Cathedral: JohnArmagh, Public domain, Wikimedia Commons
Osborne House: Humac45, CC BY-SA 3.0, Wikimedia Commons
Portchester Castle: Matthew Folley from UK, CC BY 2.0, Wikimedia Commons
Cathedral of St John the Evangelist: 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.