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Rule Golden Hour

Dolbadarn Castle - Golden Hour - Snowdonia (Eryri)

Llanberis, Wales, United Kingdom

That magical warm light just after sunrise or before sunset

Currently

Real-time conditions
Low Cloud Cover4%
Mid Cloud Cover0%
High Cloud Cover0%
Sun Elevation24.8° (Daylight)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/London
golden-hour weather icon
Next opportunity
Exceptional Golden Hour at Sunset
Dolbadarn Castle
Tomorrow · 20:00–20:51 · 1h window
Medium confidence
68%
🌇Golden Hour Potential91.4%
Low Cloud Cover: 0%
Mid Cloud Cover: 5%
High Cloud Cover: 5%
Sun Elevation: 3.3° (Golden hour)
golden-hour weather icon
Exceptional Golden Hour at Sunset
Dolbadarn Castle
Wed, Apr 22 · 19:42–20:52
🌇Golden Hour Potential:91.5-92%
Medium
golden-hour weather icon
Exceptional Golden Hour at Sunrise
Dolbadarn Castle
Thu, Apr 23 · 05:36–06:46
🌇Golden Hour Potential:99.7-100%
Medium
golden-hour weather icon
Exceptional Golden Hour at Sunset
Dolbadarn Castle
Thu, Apr 23 · 19:43–20:54
🌇Golden Hour Potential:93.6-93.7%
Medium
golden-hour weather icon
Exceptional Golden Hour at Sunrise
Dolbadarn Castle
Fri, Apr 24 · 05:33–06:44
🌇Golden Hour Potential:98.7-99.1%
Medium
golden-hour weather icon
Exceptional Golden Hour (calm) at Sunset
Dolbadarn Castle
Fri, Apr 24 · 19:45–20:56
🌇Golden Hour Potential:96.6-100%
Medium
golden-hour weather icon
Excellent Golden Hour (calm) at Sunrise
Dolbadarn Castle
Sat, Apr 25 · 06:00–06:42
🌇Golden Hour Potential:81.8%
Medium
+3 more windows in the next 10 days

What this forecast looks for

Plain-language explanation from the rule

This forecast tracks optimal sunrise and sunset conditions when warm light transforms Snowdonia's peaks, slate landscapes, and mountain lakes into scenes of extraordinary beauty. We combine solar angle, cloud cover, and visibility to predict when golden-hour photography delivers exceptional results.

Snowdonia's dramatic topography creates exceptional golden-hour photography—steep mountain faces catch warm sidelight that emphasizes texture, deep valleys create shadow contrast, and the region's frequent cloud means colorful sunrise and sunset skies are common. The slate quarries of Llanberis take on particular character in golden light, and historic elements like Dolbadarn Castle gain photogenic warmth.

What makes Snowdonia golden-hour photography distinctive:

  • Mountain textures - Sidelighting emphasizes the rocky texture of Tryfan, Pen yr Ole Wen, and Rhinog Fawr
  • Slate heritage - Llanberis slate quarries and terraces glow with warm tones in evening light
  • Valley warmth - Nant Gwynant and Ogwen Valley bathed in golden light with shadowed depths
  • Castle silhouettes - Dolbadarn Castle tower profiled against colorful dawn and dusk skies

The best golden-hour conditions combine partial cloud cover—which adds color to skies—with clear horizons for unobstructed sun. Sunrise photography is particularly rewarding at Llyn Padarn, where the Snowdon massif catches first light and the lake reflects warming colors. Position yourself along the northern shore near the Llanberis lakeside path for classic compositions including Dolbadarn Castle. Sunset photography excels at locations with westward views—Capel Curig looks toward Snowdon's pyramid profile, while Nant Gwynant valley captures warm light flowing down from mountain passes. The Pont Pen-y-benglog bridge offers dramatic golden-hour views of Tryfan's north face catching warm sidelight. Pen yr Ole Wen ridge provides elevated sunset photography with the entire Ogwen Valley bathed in warm light below. Rhinog Fawr's remote western position delivers spectacular sunset conditions over Cardigan Bay when clear. Autumn and winter offer the advantages of lower sun angles—which create longer golden-hour periods—and positioning that works well with Snowdonia's predominantly north-south valley orientations.

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72-hour requirements breakdown

What passed or failed, hour by hour
7matching hours in the next 95 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/London
Golden Hour
Any
Golden Hour Potential
≥ 80.0%
Precipitation Chance
≤ 5.0%
Visibility
≥ 1000.0m
Sun, Apr 19
09:0039%0%24134m
10:0035%0%24134m
11:0039%0%24135m
12:0040%0%24134m
13:0039%0%24135m
14:0028%0%24135m
15:0037%0%24134m
16:0035%0%24134m
17:0034%0%24134m
18:0034%0%24135m
19:0091%0%24135m
20:0096%0%24135m
21:0094%0%24135m
22:0037%0%24135m
23:0040%0%24135m
Mon, Apr 20
24:0039%0%24135m
01:0036%0%24134m
02:0032%0%24135m
03:0031%0%24135m
04:0031%0%24134m
05:0087%19%24135m
06:0087%37%24135m
07:0056%56%24134m
08:0033%48%24134m
09:0033%65%24135m
10:0028%81%24134m
11:0026%86%24134m
12:0023%91%13259m
13:0022%95%24134m
14:0023%87%24135m
15:0023%79%24135m
16:0021%72%24134m
17:0021%71%24134m
18:0022%70%24135m
19:0063%69%24134m
20:0062%46%24135m
21:0064%23%19420m
22:0023%0%24134m
23:0026%0%24135m
Tue, Apr 21
24:0031%0%24135m
01:0031%0%24134m
02:0028%0%24135m
03:0031%0%24134m
04:0022%0%24134m
05:0075%0%24135m
06:0079%0%24135m
07:0047%0%24135m
08:0019%0%24134m
09:0024%0%24134m
10:0023%0%24135m
11:0041%0%24134m
12:0035%0%24134m
13:0033%0%24134m
14:0029%0%24134m
15:0027%0%24134m
16:0036%0%24134m
17:0033%0%24134m
18:0036%0%24134m
19:0076%0%24134m
20:0091%0%24134m
21:0090%0%24135m
22:0038%0%24135m
23:0039%0%24134m
Wed, Apr 22
24:0039%0%24135m
01:0040%0%24135m
02:0039%0%24134m
03:0038%0%24135m
04:0036%0%24134m
05:0069%0%24134m
06:0069%0%24135m
07:0043%0%24134m
08:0027%0%24134m
09:0031%0%24134m
10:0032%0%24134m
11:0033%0%24135m
12:0033%0%24135m
13:0035%0%24134m
14:0034%0%24135m
15:0034%0%24135m
16:0038%0%24134m
17:0041%0%24134m
18:0039%0%24135m
19:0092%0%24135m
20:0092%0%24135m
21:0093%0%24135m
22:0016%0%24135m
23:0016%0%24135m
Thu, Apr 23
24:0016%0%24135m
01:0016%0%24135m
02:0016%0%24135m
03:0017%0%24135m
04:0017%0%24135m
05:00100%0%24135m
06:00100%0%24135m
07:0054%0%24135m
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

What does Golden Hour Potential mean?

Inputs that drive the score

This derived score summarizes multiple raw weather signals. The table below shows the supporting inputs hour by hour, so you can see what's pushing the score up or down.

Time
Europe/London
Golden Hour
High Clouds
%
Low Clouds
%
Mid-Level Clouds
%
Relative Humidity
%
Total Cloud Coverage
%
Wind Speed
m/s
Mon, Apr 20 Sunrise 06:06 Sunset 20:25
09:00
- 0% 4% 0% 68% 4% 1.2m/s
10:00
- 0% 4% 0% 64% 4% 0.89m/s
11:00
- 0% 33% 0% 62% 33% 1.4m/s
12:00
- 0% 83% 0% 61% 83% 2.2m/s
13:00
- 0% 88% 0% 66% 88% 1.9m/s
14:00
- 0% 96% 0% 68% 96% 0.52m/s
15:00
- 0% 99% 0% 71% 99% 1.6m/s
16:00
- 0% 99% 0% 74% 99% 2.5m/s
17:00
- 0% 99% 0% 74% 99% 2.1m/s
18:00
- 0% 97% 0% 70% 97% 1.9m/s
19:00
- 0% 94% 0% 71% 94% 0.93m/s
20:00
- 0% 82% 0% 75% 82% 1.4m/s
21:00
- 0% 79% 0% 81% 79% 2.1m/s
22:00
- 0% 37% 0% 81% 37% 2.5m/s
23:00
- 0% 7% 0% 82% 7% 3.1m/s
Tue, Apr 21 Sunrise 06:06 Sunset 20:25
24:00
- 0% 5% 0% 85% 5% 3.5m/s
01:00
- 0% 5% 0% 87% 5% 3.2m/s
02:00
- 0% 5% 0% 88% 5% 3m/s
03:00
- 0% 1% 0% 88% 1% 2.8m/s
04:00
- 0% 0% 0% 89% 0% 2.9m/s
05:00
- 0% 51% 0% 91% 51% 2.7m/s
06:00
- 0% 47% 0% 86% 47% 3.1m/s
07:00
- 0% 5% 0% 84% 5% 2.5m/s
08:00
- 0% 82% 0% 79% 82% 3.3m/s
09:00
- 0% 10% 0% 77% 10% 4.9m/s
10:00
- 0% 16% 0% 72% 16% 5.8m/s
11:00
- 32% 5% 0% 62% 32% 7m/s
12:00
- 85% 5% 0% 56% 85% 7.7m/s
13:00
- 73% 11% 7% 54% 73% 8.2m/s
14:00
- 44% 18% 86% 52% 86% 8.1m/s
15:00
- 2% 57% 23% 54% 57% 8.6m/s
16:00
- 5% 19% 5% 60% 19% 8.3m/s
17:00
- 5% 15% 5% 61% 15% 7.4m/s
18:00
- 4% 5% 53% 64% 53% 7.3m/s
19:00
- 2% 1% 71% 64% 71% 7.7m/s
20:00
- 5% 0% 5% 63% 5% 7.6m/s
21:00
- 5% 0% 5% 62% 5% 7.6m/s
22:00
- 5% 0% 0% 65% 5% 6.9m/s
23:00
- 5% 0% 0% 67% 5% 5.8m/s
Wed, Apr 22 Sunrise 06:04 Sunset 20:27
24:00
- 5% 0% 0% 65% 5% 5.6m/s
01:00
- 5% 0% 0% 64% 5% 5.6m/s
02:00
- 38% 0% 0% 64% 38% 4.5m/s
03:00
- 100% 0% 0% 71% 100% 3.6m/s
04:00
- 100% 0% 0% 77% 100% 3.4m/s
05:00
- 100% 0% 0% 79% 100% 3.1m/s
06:00
- 100% 0% 0% 82% 100% 3.2m/s
07:00
- 100% 0% 1% 83% 100% 3.2m/s
08:00
- 100% 2% 5% 76% 100% 3.7m/s
09:00
- 100% 2% 11% 71% 100% 5.3m/s
10:00
- 100% 2% 42% 68% 100% 6.9m/s
11:00
- 100% 4% 100% 63% 100% 7.4m/s
12:00
- 99% 4% 100% 59% 100% 8.1m/s
13:00
- 35% 4% 100% 58% 100% 8m/s
14:00
- 2% 4% 100% 57% 100% 7.9m/s
15:00
- 3% 2% 80% 56% 80% 8m/s
16:00
- 3% 2% 5% 57% 5% 7.9m/s
17:00
- 5% 0% 5% 63% 5% 7.2m/s
18:00
- 5% 0% 5% 67% 5% 6.2m/s
19:00
- 3% 0% 2% 70% 3% 5.8m/s
20:00
- 4% 0% 1% 75% 4% 4.7m/s
21:00
- 4% 0% 1% 79% 4% 3.6m/s
22:00
- 4% 0% 0% 84% 4% 2.5m/s
23:00
- 3% 0% 0% 83% 3% 2.6m/s
Thu, Apr 23 Sunrise 06:02 Sunset 20:28
24:00
- 1% 0% 0% 81% 1% 2.6m/s
01:00
- 0% 0% 0% 80% 0% 2.7m/s
02:00
- 0% 0% 0% 72% 0% 2.7m/s
03:00
- 0% 0% 0% 64% 0% 2.6m/s
04:00
- 0% 0% 0% 56% 0% 2.6m/s
05:00
- 0% 0% 0% 52% 0% 2.6m/s
06:00
- 0% 0% 0% 48% 0% 2.6m/s
07:00
- 0% 0% 0% 44% 0% 2.6m/s
08:00
- 0% 0% 0% 46% 0% 2.9m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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