International Dark Sky Reserve

Eryri (Snowdonia) Dark Sky Reserve

Wales, United Kingdom

Best timeAug–Oct

Set inWales, United Kingdom

In season~61°F high

Climate37–66°F

CurrencyGBP

LanguageEnglish

TimezoneUTC+00:00

On the map

Map showing the location of Eryri (Snowdonia) Dark Sky Reserve

Directions (Google Maps) →

Historical monthly weather

Sweet spotPeak Apr–Jul. Go in Aug for similar weather.

Sunny share of daylightJun · 37%

WarmestJul · 66°F

WettestOct

Best windowAug–Oct

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Bar height is the typical daytime high; color shows sunny share of daylight. The shaded months are the ideal window to go.

Weather data & source

2018–2023 averages, not a forecast. Wet days estimate days with at least 1 mm of rain or snow using a calibrated ERA5 threshold. Contains modified Copernicus Climate Change Service information. Weather data by Open-Meteo.com (AWS Open Data, CC BY 4.0). Sunny share of daylight is calibrated from daytime cloud cover. ERA5 via Open-Meteo AWS Open Data

Rugged Welsh peaks and valleys under protected dark skies.

Best time to visit

Aim for Aug–Oct, the 3 months that line up best.

Under the stars

A certified dark-sky site — pack red-light only, check the moon phase, and give your eyes 20 minutes to adjust for the Milky Way.

Pairs well with

The Cavern Club

Saint Stephen's Green

Frequently asked questions

When is the best time to visit Eryri (Snowdonia) Dark Sky Reserve?

The best time to visit Eryri (Snowdonia) Dark Sky Reserve is August–October, in Wales, United Kingdom.

Where is Eryri (Snowdonia) Dark Sky Reserve?

Eryri (Snowdonia) Dark Sky Reserve is in Wales, United Kingdom.

What is Eryri (Snowdonia) Dark Sky Reserve known for?

Rugged Welsh peaks and valleys under protected dark skies.

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Featured in

International Dark Sky Places