Fort · Caernarfon · Gwynedd

Caernarfon

In Caernarfon stands Caernarfon, a fort. Add any of 7 more places within 5 km to a visit. The register lists it as a National Monument of Wales.

Photo: Caernarfon, Nilfanion (CC BY-SA 4.0)

Where

In Caernarfon

inside the built-up area

How well known

Top 1%

#24 of 8,556 places we list

Warmest months

Jun–Sep

highs of 18–20°C

In brief

Fort in Caernarfon

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

#24 of the 8,556 museums, castles, gardens and other attractions we list, by how widely it is covered (54 Wikipedias). About ↓

Inside Caernarfon

Caernarfon is inside Caernarfon’s built-up area, with 7 more places to visit within 5 km. Towns near it ↓

National Monument of Wales

On the official list of protected heritage; Caernarfon has 250 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

Which month to go

Highs of 18–20°C mark June to September in Caernarfon.

Jan9° / 3°123 mm

Feb9° / 3°107 mm

Mar10° / 4°98 mm

Apr13° / 6°87 mm

May16° / 8°78 mm

Jun18° / 11°90 mm

Jul20° / 13°112 mm

Aug19° / 13°110 mm

Sep18° / 11°121 mm

Oct14° / 8°155 mm

Nov11° / 6°182 mm

Dec9° / 4°165 mm

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

About

Caernarfon

It is written up in 54 Wikipedias. For a second stop, Castell Caernarfon is 500 m away.

Caernarfon’s listed buildings and monuments →

Type: Fort
Listed: National Monument of Wales
Wikipedias: Covered in 54 languages
Town: in Caernarfon
Official site: caernarfononline.co.uk

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

The map

Where Caernarfon is

Caernarfon sits at the orange dot; the numbered ones are listed below.

Towns near it

Towns that list Caernarfon

Caernarfon is the biggest of the 8 bases nearby (9,831 people). Nearest first, every town here counts it among its places to visit.

1 · It’s in town

Caernarfon

9,831 people · 14 places to visit

2 · 1.6 km southeast of it

Caeathro

248 people · 8 places to visit

3 · 2.2 km south of it

Bontnewydd

821 people · 11 places to visit

4 · 4 km north of it

Brynsiencyn

655 people · 14 places to visit

Compare the 8 towns

Town	Where Caernarfon is	People	Places to visit
Caernarfon	It’s in town	9,831	14
Caeathro	1.6 km southeast of it	248	8
Bontnewydd	2.2 km south of it	821	11
Brynsiencyn	4 km north of it	655	14
Dwyran	4.1 km northwest of it	700	12
Bethel	4.4 km northeast of it	1,091	11
Waunfawr	4.5 km southeast of it	928	8
Rhostryfan	4.7 km south of it	308	9

Make a day of it

Close to Caernarfon

A visit can add 3 castles, 2 museums and a fort, from 37 places within 15 km.

Castle · CadwCastell Caernarfon500 m away 2

Fort · CadwCaernarfon Town Walls600 m away 3CastleCastle · CadwCastell Dolbadarn11 km away 4

CastleCaer y Belan4.6 km away 5

CathedralBangor Cathedral14 km away 6

AquariumAnglesey Sea Zoo2.7 km away 7

MuseumRoyal Welch Fusiliers Museum500 m away 8

MuseumWelsh Slate Museum11 km away

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

Caernarfon: what to know

Where is Caernarfon?

Caernarfon is in Caernarfon, Gwynedd, inside the town’s built-up area.

What is Caernarfon?

Town in Gwynedd, Wales.

When is the best time to visit Caernarfon?

June to September are the warmest months in Caernarfon, with afternoon highs of 18–20°C (Met Office 1991–2020 averages).

Is Caernarfon a listed building?

Yes: National Monument of Wales.

What else is there to see near Caernarfon?

Within 15 km: Castell Caernarfon (500 m), Caernarfon Town Walls (600 m), Castell Dolbadarn (11 km) and Caer y Belan (4.6 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 (8)

Caernarfon: Nilfanion, CC BY-SA 4.0, Wikimedia Commons
Castell Caernarfon: Llywelyn2000, CC BY-SA 4.0, Wikimedia Commons
Caernarfon Town Walls: Philip Halling, CC BY-SA 2.0, Wikimedia Commons
Caer y Belan: Phyllis Flannagan, CC BY-SA 2.0, Wikimedia Commons
Bangor Cathedral: Denis Egan from Bangor, Gwynedd, North Wales, CC BY 2.0, Wikimedia Commons
Anglesey Sea Zoo: Lynne Kirton, CC BY-SA 2.0, Wikimedia Commons
Royal Welch Fusiliers Museum: Alan Fryer, CC BY-SA 2.0, Wikimedia Commons
Welsh Slate Museum: Talsarnau Times, CC BY-SA 4.0, 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.