Mountain

Cefn Du

Located in Clocaenog, Denbighshire Coordinates: 53°04′44″ N 3°25′00″ W

Location in United Kingdom

Elevation: 422 m; above sea level
Nearest town: Cyffylliog; 1.8 km N
Local time: UTC+00:00; Europe/London · UTC+00:00
When to go: July–August; See the climate
Airports: LPL Liverpool John Lennon Airport47 km; MAN Manchester Airport82 km

About Cefn Du

Cefn Du is a mountain. Location: Clocaenog, Denbighshire. Elevation: 422 m. The best months to visit are July–August. The nearest airport is Liverpool John Lennon Airport (47 km). Nearby sights include Llys y Frenhines and Foel Gasnach.

Photos of Cefn Du

Ruthin Castle Eirian Evans · CC BY-SA 2.0

Climate of Cefn Du

Best months for sightseeing

Best months for sightseeing: July–August.

This month · November

A wet month

Day 8° · Night 2° · Rain 125 mm

Hottest month: July (day 18°)
Coldest month: February (night -1°)
Wettest month: November (125 mm)
Driest month: May (68 mm)

5° 0°

5° -1°

7° 1°

9° 2°

13° 4°

15° 7°

18° 9°

17° 9°

15° 7°

11° 5°

8° 2°

6° 1°

Jan

110

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

108

Nov

125

Dec

119

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 Cefn Du
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°	-1°	1°	2°	4°	7°	9°	9°	7°	5°	2°	1°
Precipitation (mm)	110	82	96	72	68	77	70	89	98	108	125	119

Other places to visit in this season: July August

How to get to Cefn Du

The nearest airport is Liverpool John Lennon Airport (LPL), 47 km to the northeast as the crow flies. The nearest large city is Birkenhead, 44 km to the northeast.

Airports

Liverpool John Lennon Airport (LPL) Liverpool 47 kmnortheast
Manchester Airport (MAN) Manchester, Greater Manchester 82 kmeast
Birmingham Airport (BHX) Birmingham, West Midlands 132 kmsoutheast

Nearby large cities

Birkenhead Population: 325.3K 44 kmnortheast
Liverpool Population: 496.8K 47 kmnortheast
St Helens Population: 183.2K 62 kmnortheast
Warrington Population: 172.3K 66 kmnortheast
Wigan Population: 175.4K 73 kmnortheast

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

Day trips from Cefn Du

Within 100 km: 662 historic and cultural sites, 2,031 natural sites, 194 lakes, rivers and coasts.

0–25 km293 places

Llyn Brân Lake 10 kmNW
Alwen Reservoir Lake 11 kmW
Llyn Alwen Lake 16 kmW
Llyn Aled Lake 14 kmW

25–60 km1,125 places

Thurstaston Beach Beach 34 kmNE
Formby Beach Beach 58 kmN
Ynys Tywyn Island 51 kmW
Puffin Island Island 49 kmNW

60–100 km1,469 places

Anglesey Island 65 kmW
Whistling Sands Beach 92 kmW
Traeth Penllech Beach 87 kmW
Porth Towyn Beach Beach 84 kmW

Straight-line distances.

Nearest towns and villages

Cyffylliog Municipality, Denbighshire
1.8 km N
Clocaenog Village, Clocaenog
3 km E
Cyffylliog Village, Cyffylliog
3.4 km N
Derwen Municipality, Denbighshire
3.6 km SE
Clawdd-newydd Village, Derwen
3.7 km SE
Ruthin City, Ruthin
7.7 km NE

Cefn Du

Nearby attractions & nature

Everything nearby

Llys y Frenhines Mountain, Clocaenog
1.5 km NE
Foel Gasnach Mountain, Cyffylliog
1.8 km NW
Boncyn Foel-bach Mountain, Derwen
2.3 km S
Pen Coed y Fron-wyllt uchaf Mountain, Clocaenog
3.7 km E
Cefn Mawr Mountain, Derwen
4.1 km S
Foel Frech Mountain, Cyffylliog
4.1 km W
Craig Bron-banog Mountain, Clocaenog
4.3 km SW
Tyddyn-Roger Mountain, Efenechtyd
4.4 km NE

Cefn Du

Sources & licences

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

Data last updated: November 3, 2026