Mountain

Cefnllan

Located in Pontardawe, Neath Port Talbot Coordinates: 51°44′15″ N 3°51′09″ W

Location in United Kingdom

Elevation: 245 m; above sea level
Nearest town: Pontardawe; 1.7 km S
Local time: UTC+00:00; Europe/London · UTC+00:00
When to go: June–August; See the climate
Airports: CWL Cardiff International Airport52 km; BRS Bristol Airport88 km

About Cefnllan

Cefnllan is a mountain. Location: Pontardawe, Neath Port Talbot. Elevation: 245 m. The best months to visit are June–August. The nearest airport is Cardiff International Airport (52 km). Nearby sights include Mynydd Gellionnen and Pen Alltwen.

Photos of Cefnllan

Penller Castell Nigel Davies · CC BY-SA 2.0

Climate of Cefnllan

Best months for sightseeing

Best months for sightseeing: June–August.

This month · November

A wet month

Day 10° · Night 4° · Rain 152 mm

Hottest month: July (day 19°)
Coldest month: February (night 1°)
Wettest month: November (152 mm)
Driest month: May (75 mm)

7° 2°

6° 1°

8° 2°

11° 4°

14° 7°

17° 9°

19° 12°

16° 10°

13° 7°

10° 4°

8° 3°

Jan

144

Feb

101

Mar

109

Apr

May

Jun

Jul

Aug

101

Sep

113

Oct

136

Nov

152

Dec

148

Bars: average monthly low and high temperature. Below: precipitation. Monthly averages for 1970–2000 at about 18 km resolution, adjusted for elevation. Highlighted months are mild and relatively dry. Source: WorldClim 2.1 (CC BY 4.0).

Show values as a table

Climate of Cefnllan
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average high (°C)	7°	6°	8°	11°	14°	17°	19°	19°	16°	13°	10°	8°
Average low (°C)	2°	1°	2°	4°	7°	9°	12°	12°	10°	7°	4°	3°
Precipitation (mm)	144	101	109	80	75	83	82	101	113	136	152	148

Other places to visit in this season: June July August

How to get to Cefnllan

The nearest airport is Cardiff International Airport (CWL), 52 km to the southeast as the crow flies. The nearest large city is Swansea, 14 km to the southwest.

Airports

Cardiff International Airport (CWL) Cardiff 52 kmsoutheast
Bristol Airport (BRS) Bristol 88 kmsoutheast
Exeter International Airport (EXT) Exeter, Devon 116 kmsouth

Nearby large cities

Swansea Population: 300.4K 14 kmsouthwest
Cardiff Population: 372.1K 55 kmsoutheast
Newport Population: 161.5K 61 kmeast
Bristol Population: 479K 93 kmeast
Bath Population: 101.6K 111 kmeast

Straight-line distances; road distances are longer. Airport data: OurAirports.

Day trips from Cefnllan

Within 100 km: 858 historic and cultural sites, 2,076 natural sites, 190 lakes, rivers and coasts.

0–25 km236 places

Middle Head Island 21 kmSW
Trichrug Mountain 17 kmN
Fan Gyhirych Mountain 21 kmNE
Black Mountain Mountain 15 kmN

25–60 km995 places

Worms Head Island 38 kmSW
Caldey Island Island 59 kmW
Barry Island Island 55 kmSE
Sully Island Island 59 kmSE

60–100 km1,893 places

Porth Clais Natural site 100 kmW
Poppit Sands Beach 71 kmNW
Saunton Sands Beach 75 kmS
Mouthmill Beach Beach 90 kmSW

Straight-line distances.

Nearest towns and villages

Pontardawe Village, Pontardawe
1.7 km S
Llangiwg Village, Pontardawe
0.5 km S
Rhyd-y-fro Neighbourhood, Pontardawe
0.9 km SW
Ynysmeudwy Neighbourhood, Pontardawe
1.5 km E
Ystalyfera Town, Ystalyfera
5.9 km NE
Cilmaengwyn Neighbourhood, Ystalyfera
2.2 km E

Cefnllan

Nearby attractions & nature

Everything nearby

Mynydd Gellionnen Mountain, Pontardawe
2 km SW
Pen Alltwen Mountain, Cilybebyll
2.4 km SE
Cefn Gwrhyd Mountain, Pontardawe
2.8 km N
Craig yr Allt Mountain, Mawr
3.7 km SW
Mynydd Allt-y-grug Mountain, Ystalyfera
3.8 km NE
Bryn Mawr Mountain, Pontardawe
4.2 km NW
Mynydd Uchaf Mountain, Gwaun-Cae-Gurwen
4.4 km N
Tor Clawdd Mountain, Mawr
4.6 km W

Cefnllan

Sources & licences

GeoNames, CC-BY-4.0 GeoNames (www.geonames.org), CC BY 4.0

Data last updated: November 3, 2026