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Rule Mirror Lake

Banff - Mirror Lake - Canadian Rockies

Banff, Alberta, Canada

Perfectly calm water for flawless reflections

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in America/Edmonton
mirror-lake weather icon
Next opportunity
Perfect Mirror Reflections
Banff
Tomorrow · 21:00–23:00 · 2h window
Medium confidence
46%
💨Wind Speed0.5-0.8m/s
mirror-lake weather icon
Glassy Mirror Reflections (glassy)
Banff
Fri, Apr 10 · 19:00–23:00
💨Wind Speed:0.3-1m/s
Medium
mirror-lake weather icon
Perfect Mirror Reflections
Banff
Sat, Apr 11 · 24:00–01:00
💨Wind Speed:0.9m/s
Medium

What this forecast looks for

Plain-language explanation from the rule

This forecast predicts when the Canadian Rockies' legendary turquoise glacier-fed lakes will be mirror-calm for reflection photography. We track wind patterns, wave action, and dawn conditions to identify perfect reflection windows.

The Rockies contain some of Earth's most photographed reflections—the turquoise waters of Lake Louise and Moraine Lake create colors found nowhere else. These glacier-fed lakes get their distinctive color from glacial rock flour suspended in the water, creating an otherworldly blue-green that reflects spectacularly when conditions align.

What makes Rockies reflections special:

  • Turquoise waters - Glacial flour creates unique blue-green colors that intensify reflections
  • Mountain backdrops - Victoria Glacier, Valley of Ten Peaks, and continental divide peaks provide dramatic mirror subjects
  • Dawn calm windows - Early morning often brings glass-calm conditions before thermal winds develop
  • Seasonal ice patterns - Winter and spring bring geometric ice patterns that add foreground interest

Best conditions occur at dawn before thermal winds pick up, typically June through September when lakes are ice-free. Moraine Lake and Lake Louise are classics, but lesser-known spots like Two Jack Lake and Herbert Lake offer excellent reflections with fewer crowds.

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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
America/Edmonton
Wind Speed
≤ 1.0m/s
Wind Gusts
≤ 2.0m/s
Precipitation Chance
≤ 10.0%
Visibility
≥ 5000.0m
Tue, Apr 7
19:003.4m/s7.3m/s55%24135m
20:002.3m/s2m/s27%24134m
21:002m/s1.7m/s0%24135m
22:002.2m/s2.1m/s0%24134m
23:002m/s1.9m/s0%24134m
Wed, Apr 8
24:001.8m/s1.6m/s0%24135m
01:002.1m/s1.8m/s0%24135m
02:002m/s1.7m/s0%24134m
03:002m/s1.7m/s0%24135m
04:001.9m/s1.6m/s0%24134m
05:002m/s1.6m/s0%24135m
06:002m/s1.7m/s0%24134m
07:001.9m/s1.6m/s0%24135m
08:001.7m/s1.7m/s0%24134m
09:001.8m/s2.1m/s0%24135m
10:002.1m/s2.5m/s13%24135m
11:002.2m/s2.6m/s26%24134m
12:002.1m/s2.5m/s39%24135m
13:001.9m/s2.4m/s57%24135m
14:001.8m/s2.4m/s75%24134m
15:001.7m/s2.6m/s93%24134m
16:001.7m/s3m/s95%24135m
17:001.7m/s3.2m/s97%24135m
18:001.6m/s3.1m/s100%24050m
19:001.3m/s2m/s75%7390m
20:000.28m/s0.7m/s51%2037m
21:001.9m/s1.9m/s26%1162m
22:002.1m/s2.1m/s36%15095m
23:001.6m/s1.4m/s46%450m
Thu, Apr 9
24:001.1m/s1.2m/s56%739m
01:000.74m/s0.7m/s50%11829m
02:001.1m/s0.9m/s45%7733m
03:001.2m/s1m/s39%7104m
04:001.1m/s0.9m/s53%6417m
05:001.1m/s1m/s68%5390m
06:000.92m/s0.8m/s82%3058m
07:000.77m/s0.63m/s82%1923m
08:000.26m/s0.31m/s82%1645m
09:000.9m/s1m/s82%3015m
10:001.3m/s1.2m/s87%9394m
11:001.5m/s1.4m/s93%15655m
12:001.1m/s1.5m/s98%18689m
13:000.79m/s1.8m/s65%11293m
14:000.49m/s1.9m/s33%15679m
15:000.92m/s2.5m/s0%23301m
16:001.4m/s2.8m/s0%24135m
17:001.7m/s2.9m/s0%24134m
18:002m/s2.8m/s0%24135m
19:001.8m/s2.4m/s0%24134m
20:001.4m/s1.5m/s0%24134m
21:000.54m/s0.71m/s0%24135m
22:000.78m/s0.7m/s0%24134m
23:001.4m/s1.2m/s0%24134m
Fri, Apr 10
24:001.7m/s1.4m/s0%24135m
01:001.9m/s1.6m/s0%24134m
02:002m/s1.7m/s0%24134m
03:002.2m/s1.8m/s0%24135m
04:002.2m/s1.8m/s0%24135m
05:002.3m/s1.8m/s0%24134m
06:002.3m/s1.9m/s0%24134m
07:002.4m/s1.9m/s0%24134m
08:002.2m/s2.3m/s0%24134m
09:002.2m/s2.5m/s0%24134m
10:002.3m/s2.6m/s0%24134m
11:002.1m/s2.5m/s0%24135m
12:002.1m/s2.5m/s0%24135m
13:002m/s2.4m/s0%24135m
14:001.9m/s2.3m/s0%24134m
15:001.7m/s2.1m/s0%24135m
16:001.6m/s1.9m/s0%24134m
17:001.5m/s1.8m/s0%24135m
18:001.3m/s1.6m/s0%24134m
19:000.84m/s0.8m/s0%24134m
20:000.27m/s0.5m/s0%24134m
21:000.9m/s0.9m/s0%24135m
22:000.99m/s0.9m/s0%20160m
23:001.2m/s1m/s0%16402m
Sat, Apr 11
24:000.91m/s0.9m/s0%15811m
01:001.1m/s1.1m/s0%15640m
02:001.4m/s1.4m/s0%15469m
03:001.6m/s1.6m/s0%15297m
04:001.6m/s1.7m/s7.4%18243m
05:001.6m/s1.7m/s15%21189m
06:001.6m/s1.7m/s22%24135m
07:001.5m/s1.4m/s22%18011m
08:001.5m/s1.1m/s22%11886m
09:001.4m/s0.84m/s22%5762m
10:001.6m/s1.2m/s32%6615m
11:001.7m/s1.5m/s42%7468m
12:001.9m/s1.8m/s52%8320m
13:001.9m/s1.8m/s50%5557m
14:001.8m/s1.8m/s47%2794m
15:001.7m/s1.7m/s44%31m
16:001.7m/s1.7m/s56%37m
17:001.8m/s1.8m/s68%43m
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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