Rule
Mirror Lake
Grasmere - Mirror Lake - Lake District
Ambleside, 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
Grasmere
Wed, Mar 18 · 08:00–09:00 · 1h window
Medium confidence
52%
💨Wind Speed0.9m/s
Perfect Mirror Reflections
Grasmere
Wed, Mar 18 · 15:00–17:00
💨Wind Speed:0.7-0.8m/s
Low
Perfect Mirror Reflections at Sunset
Grasmere
Wed, Mar 18 · 17:00–19:00
💨Wind Speed:0.6m/s
Medium
Glassy Mirror Reflections (glassy)
Grasmere
Wed, Mar 18 · 19:00–24:00
💨Wind Speed:0.4-1m/s
Medium
Perfect Mirror Reflections
Grasmere
Thu, Mar 19 · 23:00–05:00
💨Wind Speed:0.8-1m/s
Low
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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 |
|---|---|---|---|---|
| Sun, Mar 15 | ||||
| 07:00 | 6.9m/s | 14m/s | 98% | 279m |
| 08:00 | 7m/s | 16m/s | 97% | 234m |
| 09:00 | 6.8m/s | 17m/s | 95% | 160m |
| 10:00 | 8.1m/s | 16m/s | 96% | 87m |
| 11:00 | 9.7m/s | 17m/s | 98% | 24134m |
| 12:00 | 9.9m/s | 16m/s | 99% | 24134m |
| 13:00 | 11m/s | 15m/s | 100% | 6843m |
| 14:00 | 10m/s | 16m/s | 100% | 24135m |
| 15:00 | 11m/s | 17m/s | 100% | 24134m |
| 16:00 | 10m/s | 17m/s | 100% | 13105m |
| 17:00 | 9m/s | 16m/s | 100% | 24134m |
| 18:00 | 8.3m/s | 14m/s | 100% | 14473m |
| 19:00 | 8.2m/s | 14m/s | 96% | 24134m |
| 20:00 | 8.1m/s | 13m/s | 80% | 24134m |
| 21:00 | 7.9m/s | 14m/s | 70% | 238m |
| 22:00 | 8.6m/s | 14m/s | 80% | 19142m |
| 23:00 | 8.7m/s | 14m/s | 89% | 5092m |
| Mon, Mar 16 | ||||
| 24:00 | 8.5m/s | 14m/s | 99% | 24134m |
| 01:00 | 8.7m/s | 14m/s | 99% | 22754m |
| 02:00 | 8.5m/s | 14m/s | 99% | 17961m |
| 03:00 | 8.1m/s | 13m/s | 99% | 21165m |
| 04:00 | 7.5m/s | 13m/s | 99% | 5768m |
| 05:00 | 7.9m/s | 13m/s | 100% | 19388m |
| 06:00 | 6.4m/s | 12m/s | 100% | 18651m |
| 07:00 | 6.4m/s | 12m/s | 100% | 347m |
| 08:00 | 7.7m/s | 12m/s | 100% | 833m |
| 09:00 | 7.4m/s | 12m/s | 100% | 5754m |
| 10:00 | 8.4m/s | 12m/s | 100% | 4291m |
| 11:00 | 8.1m/s | 12m/s | 100% | 3525m |
| 12:00 | 5.5m/s | 12m/s | 100% | 596m |
| 13:00 | 4.8m/s | 11m/s | 85% | 425m |
| 14:00 | 6m/s | 11m/s | 70% | 2130m |
| 15:00 | 5m/s | 12m/s | 55% | 956m |
| 16:00 | 5.3m/s | 14m/s | 70% | 150m |
| 17:00 | 5.3m/s | 14m/s | 84% | 84m |
| 18:00 | 4.5m/s | 13m/s | 98% | 96m |
| 19:00 | 4.4m/s | 13m/s | 90% | 110m |
| 20:00 | 4.6m/s | 13m/s | 81% | 87m |
| 21:00 | 4.6m/s | 13m/s | 73% | 92m |
| 22:00 | 4.7m/s | 13m/s | 81% | 94m |
| 23:00 | 5.2m/s | 13m/s | 90% | 94m |
| Tue, Mar 17 | ||||
| 24:00 | 6.2m/s | 13m/s | 98% | 87m |
| 01:00 | 6.7m/s | 14m/s | 68% | 566m |
| 02:00 | 6.7m/s | 15m/s | 37% | 96m |
| 03:00 | 6.1m/s | 15m/s | 7% | 80m |
| 04:00 | 6.4m/s | 16m/s | 18% | 92m |
| 05:00 | 6.4m/s | 16m/s | 28% | 142m |
| 06:00 | 6.4m/s | 16m/s | 39% | 144m |
| 07:00 | 6.3m/s | 15m/s | 27% | 160m |
| 08:00 | 6.8m/s | 14m/s | 15% | 15118m |
| 09:00 | 7.5m/s | 15m/s | 3.4% | 24134m |
| 10:00 | 7.8m/s | 15m/s | 2.3% | 24134m |
| 11:00 | 8m/s | 14m/s | 1.1% | 24134m |
| 12:00 | 7.9m/s | 14m/s | 0% | 24134m |
| 13:00 | 7.4m/s | 15m/s | 0% | 24135m |
| 14:00 | 6.8m/s | 15m/s | 0% | 24134m |
| 15:00 | 6m/s | 14m/s | 0.001% | 24134m |
| 16:00 | 5.3m/s | 13m/s | 0% | 24135m |
| 17:00 | 4.3m/s | 12m/s | 0% | 24135m |
| 18:00 | 3.4m/s | 7m/s | 0% | 24135m |
| 19:00 | 3m/s | 6.2m/s | 0% | 24135m |
| 20:00 | 2.8m/s | 5.9m/s | 0% | 24134m |
| 21:00 | 2.6m/s | 3.7m/s | 0% | 24134m |
| 22:00 | 2.8m/s | 4.9m/s | 0% | 24135m |
| 23:00 | 2.9m/s | 5.2m/s | 0% | 24135m |
| Wed, Mar 18 | ||||
| 24:00 | 2.8m/s | 5.6m/s | 0% | 24135m |
| 01:00 | 2.7m/s | 5.5m/s | 0% | 9169m |
| 02:00 | 2.5m/s | 3.9m/s | 0% | 6127m |
| 03:00 | 2.2m/s | 2.8m/s | 0% | 24135m |
| 04:00 | 2m/s | 2.4m/s | 0% | 24134m |
| 05:00 | 1.7m/s | 1.6m/s | 0% | 24134m |
| 06:00 | 1.2m/s | 1.2m/s | 0% | 24134m |
| 07:00 | 1m/s | 1.1m/s | 0% | 24134m |
| 08:00 | 0.91m/s | 1.1m/s | 0% | 24134m |
| 09:00 | 1.1m/s | 1.3m/s | 0% | 24135m |
| 10:00 | 1.5m/s | 2m/s | 0% | 24134m |
| 11:00 | 2m/s | 3.2m/s | 0% | 24135m |
| 12:00 | 2.4m/s | 3.9m/s | 0% | 24135m |
| 13:00 | 1.9m/s | 2.9m/s | 0% | 24135m |
| 14:00 | 1.3m/s | 1.9m/s | 0% | 24135m |
| 15:00 | 0.79m/s | 0.94m/s | 0% | 24135m |
| 16:00 | 0.72m/s | 0.88m/s | 0% | 24135m |
| 17:00 | 0.65m/s | 0.82m/s | 0% | 24135m |
| 18:00 | 0.57m/s | 0.75m/s | 0% | 24135m |
| 19:00 | 0.53m/s | 0.67m/s | 0% | 24135m |
| 20:00 | 0.48m/s | 0.58m/s | 0% | 24135m |
| 21:00 | 0.43m/s | 0.5m/s | 0% | 24135m |
| 22:00 | 0.7m/s | 0.74m/s | 0% | 24135m |
| 23:00 | 0.97m/s | 0.98m/s | 0% | 24135m |
| Thu, Mar 19 | ||||
| 24:00 | 1.2m/s | 1.2m/s | 0% | 24135m |
| 01:00 | 1.3m/s | 1.4m/s | 0% | 24135m |
| 02:00 | 1.4m/s | 1.5m/s | 0% | 24135m |
| 03:00 | 1.5m/s | 1.7m/s | 0% | 24135m |
| 04:00 | 1.7m/s | 1.9m/s | 0% | 24135m |
| 05:00 | 1.9m/s | 2.1m/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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