Rule
Blue Hour
Ramsgate - Blue Hour - London & Southeast England
Ramsgate, England, United Kingdom
When city lights balance with the deep blue twilight sky
Currently
Real-time conditionsCloud Cover100%
Moon Altitude-27.3°
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
Times shown in Europe/London
Next opportunity
Good Blue Hour (clear) at Dusk
Ramsgate
Mon, Jun 15 · 22:00–22:00 · 1h window
Medium confidence
46%
🌉Blue Hour Quality68.5%
Cloud Cover: 5%
Moon Illumination: 0%
Moon Altitude: 2.8°
Good Blue Hour (clear) at Dawn
Ramsgate
Tue, Jun 16 · 03:49–04:00
🌉Blue Hour Quality:68.1%
Medium
Good Blue Hour (clear) at Sunrise
Ramsgate
Tue, Jun 16 · 04:00–04:08
🌉Blue Hour Quality:66.5%
Medium
What this forecast looks for
Plain-language explanation from the ruleThis forecast predicts optimal blue hour conditions for London's world-class urban skyline and Southeast England's coastal scenes. We track civil twilight timing, cloud cover, and atmospheric clarity to identify when the deep blue sky will complement city lights and landmarks.
London offers some of Europe's finest blue hour photography—the contrast between modern glass towers like the Shard and historic landmarks like Tower Bridge creates visual tension that works brilliantly during twilight. Southeast coastal towns like Brighton and Whitstable add maritime character with piers and harbors lit up against twilight skies.
What makes London and Southeast blue hour exceptional:
- Iconic skyline - The Shard, Gherkin, Walkie Talkie, and Tower Bridge combine ancient and modern architecture
- Thames reflections - River mirrors the illuminated skyline creating double-exposure compositions
- Brighton Pier - Historic Victorian pier lit up against Channel twilight creates classic blue hour scene
- Whitstable harbour - Working harbor with boats, oyster shacks, and maritime character at dusk
Best conditions occur during clear or partly cloudy evenings when city lights shine bright against deep blue sky. Winter blue hour happens at convenient times (4-5pm), while summer requires late evening shooting (9-10pm). Popular viewpoints include Waterloo Bridge, Tower Bridge walkway, and South Bank.
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72-hour requirements breakdown
What passed or failed, hour by hour0matching hours in the next 81 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time Europe/London | Blue Hour Any | Blue Hour Quality ≥ 65.0% | Precipitation Chance ≤ 15.0% |
|---|---|---|---|
| Mon, Jun 8 | |||
| 05:00 | ✕ | 13% | 74% |
| 06:00 | ✕ | 13% | 84% |
| 07:00 | ✕ | 13% | 94% |
| 08:00 | ✕ | 13% | 92% |
| 09:00 | ✕ | 13% | 94% |
| 10:00 | ✕ | 13% | 96% |
| 11:00 | ✕ | 13% | 97% |
| 12:00 | ✕ | 15% | 98% |
| 13:00 | ✕ | 13% | 99% |
| 14:00 | ✕ | 12% | 92% |
| 15:00 | ✕ | 15% | 85% |
| 16:00 | ✕ | 17% | 78% |
| 17:00 | ✕ | 18% | 76% |
| 18:00 | ✕ | 24% | 74% |
| 19:00 | ✕ | 24% | 73% |
| 20:00 | ✕ | 11% | 49% |
| 21:00 | ✓ | 62% | 25% |
| 22:00 | ✕ | 60% | 0.91% |
| 23:00 | ✕ | 26% | 0.61% |
| Tue, Jun 9 | |||
| 24:00 | ✕ | 26% | 0.3% |
| 01:00 | ✕ | 22% | 0% |
| 02:00 | ✕ | 25% | 0.3% |
| 03:00 | ✓ | 64% | 0.61% |
| 04:00 | ✓ | 64% | 0.91% |
| 05:00 | ✕ | 21% | 32% |
| 06:00 | ✕ | 22% | 63% |
| 07:00 | ✕ | 25% | 95% |
| 08:00 | ✕ | 24% | 93% |
| 09:00 | ✕ | 23% | 92% |
| 10:00 | ✕ | 24% | 90% |
| 11:00 | ✕ | 18% | 91% |
| 12:00 | ✕ | 16% | 91% |
| 13:00 | ✕ | 20% | 92% |
| 14:00 | ✕ | 16% | 84% |
| 15:00 | ✕ | 13% | 75% |
| 16:00 | ✕ | 27% | 67% |
| 17:00 | ✕ | 26% | 66% |
| 18:00 | ✕ | 26% | 65% |
| 19:00 | ✕ | 28% | 64% |
| 20:00 | ✕ | 29% | 43% |
| 21:00 | ✓ | 64% | 21% |
| 22:00 | ✕ | 61% | 0% |
| 23:00 | ✕ | 33% | 13% |
| Wed, Jun 10 | |||
| 24:00 | ✕ | 33% | 26% |
| 01:00 | ✕ | 31% | 39% |
| 02:00 | ✕ | 27% | 39% |
| 03:00 | ✓ | 51% | 39% |
| 04:00 | ✓ | 53% | 38% |
| 05:00 | ✕ | 24% | 52% |
| 06:00 | ✕ | 26% | 65% |
| 07:00 | ✕ | 26% | 79% |
| 08:00 | ✕ | 27% | 83% |
| 09:00 | ✕ | 26% | 86% |
| 10:00 | ✕ | 27% | 90% |
| 11:00 | ✕ | 27% | 91% |
| 12:00 | ✕ | 21% | 92% |
| 13:00 | ✕ | 13% | 92% |
| 14:00 | ✕ | 13% | 89% |
| 15:00 | ✕ | 16% | 85% |
| 16:00 | ✕ | 11% | 81% |
| 17:00 | ✕ | 11% | 82% |
| 18:00 | ✕ | 15% | 83% |
| 19:00 | ✕ | 18% | 85% |
| 20:00 | ✕ | 21% | 56% |
| 21:00 | ✓ | 55% | 28% |
| 22:00 | ✕ | 51% | 0% |
| 23:00 | ✕ | 33% | 0% |
| Thu, Jun 11 | |||
| 24:00 | ✕ | 27% | 0% |
| 01:00 | ✕ | 29% | 0% |
| 02:00 | ✕ | 5.1% | 7.4% |
| 03:00 | ✓ | 33% | 15% |
| 04:00 | ✓ | 27% | 22% |
| 05:00 | ✕ | 1.4% | 29% |
| 06:00 | ✕ | 1% | 35% |
| 07:00 | ✕ | 1% | 42% |
| 08:00 | ✕ | 1% | 51% |
| 09:00 | ✕ | 1% | 60% |
| 10:00 | ✕ | 0.6% | 68% |
| 11:00 | ✕ | 0.6% | 74% |
| 12:00 | ✕ | 0.6% | 80% |
| 13:00 | ✕ | 0.6% | 85% |
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).
What does Blue Hour Quality mean?
Inputs that drive the scoreThis 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 | Blue Hour | High Clouds % | Low Clouds % | Mid-Level Clouds % | Relative Humidity % | Solar Elevation ° | Total Cloud Coverage % | Visibility m | Wind Speed m/s |
|---|---|---|---|---|---|---|---|---|---|
| Mon, Jun 8
Sunrise 04:39
Sunset 21:07 | |||||||||
| 16:00 | - | 66% | 11% | 100% | 87% | 44° | 100% | 24003m | 6.2m/s |
| 17:00 | - | 100% | 4% | 81% | 81% | 35° | 100% | 22063m | 7.3m/s |
| 18:00 | - | 100% | 5% | 84% | 80% | 26° | 100% | 21006m | 7m/s |
| 19:00 | - | 96% | 5% | 79% | 83% | 17° | 96% | 10382m | 7.2m/s |
| 20:00 | - | 0% | 76% | 14% | 81% | 8.1° | 77% | 11150m | 7m/s |
| 21:00 | - | 0% | 5% | 0% | 83% | 0.58° | 5% | 24134m | 6m/s |
| 22:00 ☾ | - | 0% | 5% | 0% | 82% | -6.5° | 5% | 24135m | 6.1m/s |
| 23:00 ☾ | - | 0% | 1% | 0% | 82% | -12° | 1% | 24134m | 6.2m/s |
| Tue, Jun 9
Sunrise 04:39
Sunset 21:07 | |||||||||
| 24:00 ☾ | - | 0% | 4% | 0% | 86% | -15° | 4% | 24135m | 7.5m/s |
| 01:00 ☾ | - | 0% | 10% | 0% | 86% | -16° | 10% | 24135m | 7.1m/s |
| 02:00 ☾ | - | 0% | 5% | 0% | 86% | -14° | 5% | 24135m | 6.7m/s |
| 03:00 ☾ | - | 0% | 5% | 0% | 86% | -11° | 5% | 24135m | 6.7m/s |
| 04:00 ☾ | - | 0% | 5% | 0% | 87% | -5.2° | 5% | 24135m | 6.7m/s |
| 05:00 | - | 0% | 7% | 4% | 88% | 2.1° | 8% | 24134m | 6.9m/s |
| 06:00 | - | 0% | 3% | 0% | 88% | 9.9° | 3% | 24135m | 6.6m/s |
| 07:00 | - | 0% | 5% | 1% | 85% | 19° | 5% | 24135m | 6.9m/s |
| 08:00 | - | 0% | 0% | 8% | 78% | 28° | 8% | 24135m | 7.5m/s |
| 09:00 | - | 0% | 0% | 5% | 68% | 37° | 5% | 24134m | 7.8m/s |
| 10:00 | - | 0% | 5% | 5% | 62% | 46° | 5% | 24135m | 7.8m/s |
| 11:00 | - | 0% | 55% | 84% | 61% | 54° | 84% | 18098m | 7.7m/s |
| 12:00 | - | 0% | 72% | 48% | 68% | 60° | 72% | 12462m | 10m/s |
| 13:00 | - | 0% | 6% | 4% | 74% | 62° | 6% | 11692m | 10m/s |
| 14:00 | - | 0% | 78% | 5% | 66% | 59° | 78% | 13338m | 10m/s |
| 15:00 | - | 5% | 86% | 5% | 72% | 53° | 86% | 11144m | 8.9m/s |
| 16:00 | - | 6% | 5% | 20% | 71% | 44° | 21% | 9996m | 7.6m/s |
| 17:00 | - | 6% | 5% | 5% | 75% | 35° | 6% | 10414m | 7.9m/s |
| 18:00 | - | 5% | 0% | 0% | 77% | 26° | 5% | 24135m | 7.6m/s |
| 19:00 | - | 6% | 5% | 0% | 76% | 17° | 6% | 24134m | 7.9m/s |
| 20:00 | - | 1% | 0% | 0% | 76% | 8.2° | 1% | 24135m | 9m/s |
| 21:00 | - | 10% | 0% | 0% | 77% | 0.66° | 10% | 24134m | 7.6m/s |
| 22:00 ☾ | - | 13% | 0% | 0% | 79% | -6.4° | 13% | 24134m | 6.8m/s |
| 23:00 ☾ | - | 12% | 0% | 0% | 82% | -12° | 12% | 24134m | 6.9m/s |
| Wed, Jun 10
Sunrise 04:39
Sunset 21:08 | |||||||||
| 24:00 ☾ | - | 6% | 0% | 0% | 82% | -15° | 6% | 24134m | 6.3m/s |
| 01:00 ☾ | - | 13% | 0% | 0% | 83% | -16° | 13% | 24135m | 6.3m/s |
| 02:00 ☾ | - | 47% | 0% | 0% | 84% | -14° | 47% | 24134m | 6m/s |
| 03:00 ☾ | - | 55% | 2% | 6% | 86% | -11° | 55% | 24134m | 5.8m/s |
| 04:00 ☾ | - | 72% | 4% | 62% | 88% | -5.1° | 72% | 24134m | 5.9m/s |
| 05:00 | - | 51% | 5% | 26% | 88% | 2.1° | 51% | 24134m | 5.9m/s |
| 06:00 | - | 5% | 3% | 98% | 87% | 10° | 98% | 24134m | 6m/s |
| 07:00 | - | 7% | 0% | 100% | 83% | 19° | 100% | 24134m | 6.1m/s |
| 08:00 | - | 5% | 5% | 5% | 75% | 28° | 5% | 24134m | 6.2m/s |
| 09:00 | - | 0% | 5% | 17% | 63% | 37° | 17% | 24135m | 6.4m/s |
| 10:00 | - | 0% | 5% | 4% | 59% | 46° | 5% | 24134m | 6.1m/s |
| 11:00 | - | 5% | 10% | 63% | 56% | 54° | 63% | 24134m | 5.8m/s |
| 12:00 | - | 0% | 88% | 56% | 56% | 60° | 89% | 24135m | 6.7m/s |
| 13:00 | - | 0% | 99% | 36% | 59% | 62° | 99% | 24135m | 7.3m/s |
| 14:00 | - | 0% | 72% | 98% | 71% | 59° | 99% | 8791m | 6.7m/s |
| 15:00 | - | 0% | 7% | 85% | 68% | 53° | 85% | 11810m | 5.7m/s |
| 16:00 | - | 0% | 88% | 10% | 70% | 45° | 88% | 10177m | 9m/s |
| 17:00 | - | 0% | 89% | 4% | 74% | 35° | 89% | 10870m | 7.6m/s |
| 18:00 | - | 0% | 54% | 0% | 78% | 26° | 54% | 24135m | 7.6m/s |
| 19:00 | - | 5% | 6% | 0% | 79% | 17° | 6% | 13734m | 7m/s |
| 20:00 | - | 5% | 5% | 0% | 79% | 8.3° | 5% | 18786m | 6.5m/s |
| 21:00 | - | 5% | 13% | 0% | 76% | 0.74° | 13% | 24061m | 4.3m/s |
| 22:00 ☾ | - | 5% | 33% | 0% | 82% | -6.3° | 33% | 24135m | 5.7m/s |
| 23:00 ☾ | - | 37% | 5% | 0% | 82% | -11° | 37% | 24135m | 5.4m/s |
| Thu, Jun 11
Sunrise 04:38
Sunset 21:08 | |||||||||
| 24:00 ☾ | - | 99% | 5% | 5% | 83% | -15° | 99% | 24134m | 5.6m/s |
| 01:00 ☾ | - | 72% | 4% | 5% | 85% | -16° | 72% | 24134m | 5.8m/s |
| 02:00 ☾ | - | 81% | 23% | 37% | 81% | -14° | 81% | 24134m | 6m/s |
| 03:00 ☾ | - | 91% | 41% | 68% | 78% | -11° | 91% | 24135m | 6.1m/s |
| 04:00 ☾ | - | 100% | 59% | 100% | 75% | -5.1° | 100% | 24135m | 6.3m/s |
| 05:00 | - | 98% | 73% | 100% | 75% | 2.1° | 100% | 23819m | 7.3m/s |
| 06:00 | - | 97% | 86% | 100% | 75% | 10° | 100% | 23503m | 8.4m/s |
| 07:00 | - | 95% | 100% | 100% | 75% | 19° | 100% | 23186m | 9.4m/s |
| 08:00 | - | 97% | 100% | 100% | 79% | 28° | 100% | 21795m | 10m/s |
| 09:00 | - | 98% | 100% | 100% | 84% | 37° | 100% | 20404m | 11m/s |
| 10:00 | - | 100% | 100% | 100% | 88% | 46° | 100% | 19012m | 12m/s |
| 11:00 | - | 100% | 100% | 100% | 90% | 54° | 100% | 18044m | 11m/s |
| 12:00 | - | 100% | 100% | 100% | 91% | 60° | 100% | 17076m | 11m/s |
| 13:00 | - | 100% | 100% | 100% | 93% | 62° | 100% | 16108m | 11m/s |
| 14:00 | - | 100% | 100% | 100% | 93% | 59° | 100% | 18784m | 11m/s |
| 15:00 | - | 100% | 100% | 100% | 94% | 53° | 100% | 21460m | 10m/s |
How to read: these inputs help produce the derived score; they are not requirements by themselves.
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