Rule
Mirror Lake
Derwentwater - Mirror Lake - Lake District
Penrith, England, United Kingdom
Perfectly calm water for flawless reflections
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
Times shown in Europe/London
Next opportunity
Perfect Mirror Reflections
Derwentwater
Fri, Apr 24 · 04:00–05:00 · 1h window
Medium confidence
54%
💨Wind Speed0.8m/s
Perfect Mirror Reflections at Sunrise
Derwentwater
Fri, Apr 24 · 05:00–07:00
💨Wind Speed:0.8m/s
Low
Glassy Mirror Reflections (glassy)
Derwentwater
Fri, Apr 24 · 07:00–19:00
💨Wind Speed:0.3-0.9m/s
Medium
Perfect Mirror Reflections at Sunset
Derwentwater
Fri, Apr 24 · 19:00–21:00
💨Wind Speed:0.5m/s
Low
Glassy Mirror Reflections (glassy) at Dusk
Derwentwater
Fri, Apr 24 · 21:00–22:00
💨Wind Speed:0.5m/s
Medium
Glassy Mirror Reflections (glassy)
Derwentwater
Fri, Apr 24 · 22:00–05:00
💨Wind Speed:0.3-0.5m/s
Medium
Perfect Mirror Reflections at Sunrise
Derwentwater
Sat, Apr 25 · 05:00–07:00
💨Wind Speed:0.6-0.9m/s
Low
+5 more windows in the next 10 days
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72-hour requirements breakdown
What passed or failed, hour by hourAND logic: all conditions required
Meets requirement
Misses requirement
Time Europe/London | Wind Speed ≤ 1.0m/s | Wind Gusts ≤ 2.0m/s | Precipitation Chance ≤ 10.0% | Visibility ≥ 5000.0m |
|---|---|---|---|---|
| Tue, Apr 21 | ||||
| 05:00 | 3.2m/s | 5.3m/s | 0% | 24135m |
| 06:00 | 4.2m/s | 6.8m/s | 0% | 24134m |
| 07:00 | 4.5m/s | 7.6m/s | 0% | 24135m |
| 08:00 | 3.8m/s | 7.8m/s | 26% | 24134m |
| 09:00 | 4.8m/s | 7.8m/s | 13% | 24135m |
| 10:00 | 5.8m/s | 8.4m/s | 0% | 24135m |
| 11:00 | 6.6m/s | 8.8m/s | 0% | 24134m |
| 12:00 | 7m/s | 9m/s | 0% | 24135m |
| 13:00 | 7.5m/s | 9.3m/s | 0% | 24135m |
| 14:00 | 7.4m/s | 9.2m/s | 0% | 24134m |
| 15:00 | 7.4m/s | 9.2m/s | 0% | 24134m |
| 16:00 | 7.3m/s | 9m/s | 0% | 24134m |
| 17:00 | 6.8m/s | 9.1m/s | 0% | 24134m |
| 18:00 | 6.3m/s | 9.4m/s | 0% | 24135m |
| 19:00 | 5.7m/s | 11m/s | 0% | 24134m |
| 20:00 | 4.9m/s | 9.2m/s | 0% | 24134m |
| 21:00 | 4m/s | 8.4m/s | 0% | 24134m |
| 22:00 | 3.4m/s | 7.7m/s | 0% | 24134m |
| 23:00 | 1.8m/s | 2m/s | 0% | 24134m |
| Wed, Apr 22 | ||||
| 24:00 | 1.5m/s | 1.5m/s | 0% | 24135m |
| 01:00 | 2m/s | 1.8m/s | 0% | 24134m |
| 02:00 | 2m/s | 1.9m/s | 0% | 24135m |
| 03:00 | 2.1m/s | 2m/s | 0% | 24134m |
| 04:00 | 2m/s | 1.9m/s | 0% | 24135m |
| 05:00 | 2m/s | 1.9m/s | 0% | 24134m |
| 06:00 | 2.1m/s | 1.9m/s | 0% | 24135m |
| 07:00 | 2.8m/s | 7.1m/s | 0% | 17587m |
| 08:00 | 4.9m/s | 10m/s | 0% | 24134m |
| 09:00 | 5.5m/s | 9.4m/s | 0% | 24134m |
| 10:00 | 5.4m/s | 8.1m/s | 0% | 24135m |
| 11:00 | 5.1m/s | 7.5m/s | 0% | 24134m |
| 12:00 | 5.6m/s | 7.8m/s | 0% | 24134m |
| 13:00 | 6.3m/s | 8.2m/s | 0% | 24135m |
| 14:00 | 6.1m/s | 8m/s | 0% | 24135m |
| 15:00 | 6m/s | 7.6m/s | 0% | 24135m |
| 16:00 | 5.6m/s | 7.3m/s | 0% | 24135m |
| 17:00 | 5.3m/s | 6.8m/s | 0% | 24135m |
| 18:00 | 4.8m/s | 6.5m/s | 0% | 24134m |
| 19:00 | 4.3m/s | 6.6m/s | 0% | 24134m |
| 20:00 | 3.2m/s | 4.4m/s | 0% | 24134m |
| 21:00 | 2.1m/s | 1.9m/s | 0% | 24134m |
| 22:00 | 2.3m/s | 2m/s | 0% | 24135m |
| 23:00 | 2.4m/s | 2.1m/s | 0% | 24135m |
| Thu, Apr 23 | ||||
| 24:00 | 2.2m/s | 2m/s | 0% | 24135m |
| 01:00 | 2.2m/s | 2m/s | 0% | 24134m |
| 02:00 | 1.9m/s | 1.7m/s | 0% | 24135m |
| 03:00 | 1.9m/s | 1.6m/s | 0% | 24135m |
| 04:00 | 2.3m/s | 2m/s | 0% | 24135m |
| 05:00 | 2.3m/s | 2.1m/s | 0% | 24135m |
| 06:00 | 2.4m/s | 2.1m/s | 0% | 24135m |
| 07:00 | 2.1m/s | 1.9m/s | 0% | 24135m |
| 08:00 | 1.6m/s | 2.1m/s | 0% | 24135m |
| 09:00 | 1.6m/s | 2.2m/s | 0% | 24134m |
| 10:00 | 1.5m/s | 2.2m/s | 0% | 24135m |
| 11:00 | 1.3m/s | 2.2m/s | 0% | 24135m |
| 12:00 | 1.4m/s | 2.3m/s | 0% | 24135m |
| 13:00 | 1.7m/s | 2.5m/s | 0% | 24134m |
| 14:00 | 1.7m/s | 2.2m/s | 0% | 24135m |
| 15:00 | 1.6m/s | 2m/s | 0% | 24135m |
| 16:00 | 1.5m/s | 1.8m/s | 0% | 24134m |
| 17:00 | 1.5m/s | 1.7m/s | 0% | 24135m |
| 18:00 | 1.6m/s | 1.8m/s | 0% | 24134m |
| 19:00 | 1.9m/s | 1.8m/s | 0% | 24134m |
| 20:00 | 2m/s | 1.8m/s | 0% | 24134m |
| 21:00 | 2.2m/s | 1.9m/s | 0% | 24134m |
| 22:00 | 2.3m/s | 2.1m/s | 0% | 24134m |
| 23:00 | 2.2m/s | 2m/s | 0% | 24135m |
| Fri, Apr 24 | ||||
| 24:00 | 2.1m/s | 1.9m/s | 0% | 24135m |
| 01:00 | 2m/s | 1.8m/s | 0% | 24135m |
| 02:00 | 1.6m/s | 1.4m/s | 0% | 24135m |
| 03:00 | 1.2m/s | 1m/s | 0% | 24135m |
| 04:00 | 0.81m/s | 0.61m/s | 0% | 24135m |
| 05:00 | 0.79m/s | 0.55m/s | 0% | 24135m |
| 06:00 | 0.78m/s | 0.49m/s | 0% | 24135m |
| 07:00 | 0.76m/s | 0.43m/s | 0% | 24135m |
| 08:00 | 0.62m/s | 0.48m/s | 0% | 24135m |
| 09:00 | 0.47m/s | 0.52m/s | 0% | 24135m |
| 10:00 | 0.33m/s | 0.56m/s | 0% | 24135m |
| 11:00 | 0.43m/s | 0.72m/s | 0% | 24135m |
| 12:00 | 0.53m/s | 0.88m/s | 0% | 24135m |
| 13:00 | 0.63m/s | 1m/s | 0% | 24135m |
| 14:00 | 0.7m/s | 0.97m/s | 0% | 24135m |
| 15:00 | 0.78m/s | 0.89m/s | 0% | 24135m |
| 16:00 | 0.86m/s | 0.82m/s | 0% | 24135m |
| 17:00 | 0.75m/s | 0.75m/s | 0% | 24135m |
| 18:00 | 0.65m/s | 0.67m/s | 0% | 24135m |
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).
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