Mountain

Cefnmawr

Located in Glyncorrwg, Neath Port Talbot Coordinates: 51°41′00″ N 3°39′00″ W

Location in United Kingdom

Elevation: 479 m; above sea level
Nearest town: Glyncorrwg; 1.6 km E
Local time: UTC+00:00; Europe/London · UTC+00:00
When to go: July–August; See the climate
Airports: CWL Cardiff International Airport38 km; BRS Bristol Airport73 km

About Cefnmawr

Cefnmawr is a mountain. Location: Glyncorrwg, Neath Port Talbot. Elevation: 479 m. The best months to visit are July–August. The nearest airport is Cardiff International Airport (38 km). Nearby sights include Moel y Hyrddod and Mynydd Corrwg Fechan.

Climate of Cefnmawr

Best months for sightseeing

Best months for sightseeing: July–August.

This month · November

A wet month

Day 8° · Night 3° · Rain 169 mm

Hottest month: July (day 18°)
Coldest month: February (night 0°)
Wettest month: December (172 mm)
Driest month: May (86 mm)

5° 0°

7° 1°

9° 2°

13° 5°

15° 8°

18° 10°

17° 10°

15° 8°

11° 6°

8° 3°

6° 1°

Jan

170

Feb

119

Mar

128

Apr

May

Jun

Jul

Aug

111

Sep

127

Oct

149

Nov

169

Dec

172

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 Cefnmawr
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average high (°C)	5°	5°	7°	9°	13°	15°	18°	17°	15°	11°	8°	6°
Average low (°C)	0°	0°	1°	2°	5°	8°	10°	10°	8°	6°	3°	1°
Precipitation (mm)	170	119	128	91	86	91	86	111	127	149	169	172

Other places to visit in this season: July August

How to get to Cefnmawr

The nearest airport is Cardiff International Airport (CWL), 38 km to the southeast as the crow flies. The nearest large city is Swansea, 21 km to the west.

Airports

Cardiff International Airport (CWL) Cardiff 38 kmsoutheast
Bristol Airport (BRS) Bristol 73 kmsoutheast
Exeter International Airport (EXT) Exeter, Devon 107 kmsouth

Nearby large cities

Swansea Population: 300.4K 21 kmwest
Cardiff Population: 372.1K 40 kmsoutheast
Newport Population: 161.5K 46 kmeast
Bristol Population: 479K 77 kmeast
Bath Population: 101.6K 96 kmeast

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

Day trips from Cefnmawr

Within 100 km: 895 historic and cultural sites, 2,105 natural sites, 171 lakes, rivers and coasts.

0–25 km221 places

Fan Gyhirych Mountain 20 kmN
Black Mountain Mountain 22 kmNW
Fan Brycheiniog - Twr y Fan Foel Mountain 23 kmN
Fan Fawr Mountain 23 kmNE

25–60 km1,030 places

Worms Head Island 49 kmW
Steep Holm Island 53 kmSE
Flat Holm Island 50 kmSE
Barry Island Island 41 kmSE

60–100 km1,920 places

Poppit Sands Beach 86 kmNW
Saunton Sands Beach 76 kmSW
Mouthmill Beach Beach 92 kmSW
Putsborough Beach Beach 72 kmSW

Straight-line distances.

Nearest towns and villages

Glyncorrwg Village, Glyncorrwg
1.6 km E
Croeserw Village, Glyncorrwg
4.3 km S
Blaengwynfi Village, Glyncorrwg
4.4 km SE
Resolven Village, Resolven
4.6 km NW
Abercregan Village, Glyncorrwg
3.2 km S
Resolven Municipality, Neath Port Talbot
3 km NW

Cefnmawr

Nearby attractions & nature

Everything nearby

Moel y Hyrddod Mountain, Glyncorrwg
0.8 km N
Mynydd Corrwg Fechan Mountain, Glyncorrwg
2.4 km E
Mynydd Ynyscorrwg Mountain, Glyncorrwg
3.1 km SE
Mynydd Resolfen Mountain, Blaengwrach
3.8 km N
Coetgae Isaf Mountain, Glyncorrwg
4 km SE
Foel Fawr Mountain, Glyncorrwg
4.3 km S
Mynydd Pen-y-cae Mountain, Blaengwrach
4.6 km NE
Mynydd Blaengwynfi Mountain, Glyncorrwg
5.1 km SE

Cefnmawr

Sources & licences

Wikidata, CC0-1.0 Wikidata (CC0)
GeoNames, CC-BY-4.0 GeoNames (www.geonames.org), CC BY 4.0

Data last updated: November 11, 2026 · 2 independent sources