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Rule Mirror Lake

Mirror Lake Forecast for Grundlsee, Salzkammergut

Grundlsee, Styria, Austria

Grundlsee's long shoreline supplies broad water foregrounds, with wooded slopes and the Totes Gebirge forming receding mountain layers.

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Vienna
mirror-lake weather icon
Next opportunity
Perfect Mirror Reflections
Grundlsee
Tomorrow · 23:00–24:00 · 1h window
Medium confidence
60%
💨Wind Speed0.7m/s
mirror-lake weather icon
Perfect Mirror Reflections
Grundlsee
Tue, Jul 21 · 23:00–04:00
💨Wind Speed:0.6-0.9m/s
Low
mirror-lake weather icon
Perfect Mirror Reflections
Grundlsee
Sun, Jul 26 · 02:00–04:00
💨Wind Speed:0.9m/s
Low

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Mirror Lake conditions across Salzkammergut. The requirements and hourly values below show how those signals apply at Grundlsee.

Explore Mirror Lake conditions across Salzkammergut →

Recorded match history

Completed PhotoWeather forecast matches recorded for this exact rule at Grundlsee during the last 365 days.

Last 30 days
11
recorded matching windows · 67% average confidence
Last 90 days
38
recorded matching windows · 66% average confidence
Last 365 days
209
recorded matching windows · 70% average confidence
Most frequent recorded start hour

18:00 local time, shared by 21 of 209 matches recorded in the last 365 days.

Most represented month

January, with 130 of 209 matches recorded in the last 365 days.

These figures use completed PhotoWeather MatchEvent records from the previous 365 days only. They describe recorded forecast matches, not observations, climatological probability, or a guarantee of future conditions.

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80-hour requirements breakdown

When available, the detailed table below covers only the stated 80-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the next 14 days, so this table does not explain that entire 14-day period.

What passed or failed, hour by hour
6matching hours in the next 80 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Vienna
Wind Speed
≤ 1.0m/s
Wind Gusts
≤ 2.0m/s
Precipitation Chance
≤ 10.0%
Visibility
≥ 5000.0m
Sun, Jul 19
06:001.4m/s1.4m/s100%24134m
07:001.4m/s1.3m/s100%24134m
08:000.91m/s1.1m/s100%24134m
09:001.5m/s1.9m/s99%9599m
10:001.2m/s1.1m/s98%24047m
11:001.7m/s1.6m/s97%18791m
12:003m/s3.1m/s98%6472m
13:003.1m/s3.6m/s98%9820m
14:003.2m/s3.7m/s99%23911m
15:002.7m/s3.4m/s66%5989m
16:000.32m/s0.63m/s33%23364m
17:001.3m/s1.9m/s0%24134m
18:001.9m/s2.5m/s0%24135m
19:002.1m/s2.6m/s0%24135m
20:001.9m/s2.4m/s0%24134m
21:002.2m/s2m/s0%24135m
22:002m/s1.9m/s0%24134m
23:001.7m/s1.6m/s0%24134m
Mon, Jul 20
24:001.3m/s1.2m/s0%23345m
01:001.1m/s1m/s0%23327m
02:001.4m/s1.3m/s0%23321m
03:001.5m/s1.3m/s0%23324m
04:001.5m/s1.3m/s0%23329m
05:001.6m/s1.4m/s0%23353m
06:001.4m/s1.3m/s13%24134m
07:001.1m/s1.2m/s26%24135m
08:000.63m/s0.83m/s39%24135m
09:001.1m/s1.1m/s39%24134m
10:001.2m/s1m/s39%24135m
11:001.5m/s1.4m/s39%24135m
12:001.8m/s2.5m/s48%24134m
13:002.3m/s3.4m/s57%24134m
14:002.6m/s3.5m/s65%24134m
15:003.1m/s3.5m/s60%24134m
16:003.7m/s3m/s55%24134m
17:003.3m/s2.8m/s50%23895m
18:002.9m/s3m/s50%16766m
19:002.6m/s2.7m/s50%23815m
20:002.4m/s2.7m/s50%23738m
21:002.1m/s1.9m/s33%24135m
22:001.7m/s1.6m/s17%24134m
23:000.68m/s0.62m/s0%24135m
Tue, Jul 21
24:001.3m/s1.3m/s13%24134m
01:001.3m/s1.2m/s26%24134m
02:001.1m/s1.1m/s39%24134m
03:001m/s1m/s43%24134m
04:000.69m/s0.71m/s46%24134m
05:000.73m/s0.72m/s50%24135m
06:000.97m/s0.93m/s46%24134m
07:001.2m/s1.4m/s41%24135m
08:000.97m/s1.2m/s37%24135m
09:001.5m/s2m/s37%24135m
10:001.6m/s1.8m/s37%24134m
11:002m/s2.1m/s38%24135m
12:002.8m/s3m/s44%24135m
13:002.8m/s2.8m/s51%24134m
14:003m/s3.9m/s57%24134m
15:003.3m/s5m/s57%24134m
16:003.8m/s6.2m/s56%24134m
17:003m/s4.6m/s56%24134m
18:002.6m/s4.1m/s59%24135m
19:002.1m/s3.2m/s61%24134m
20:002.2m/s3.1m/s64%22440m
21:001.7m/s2.3m/s43%23005m
22:001.1m/s1.5m/s21%23570m
23:000.61m/s0.64m/s0%24135m
Wed, Jul 22
24:000.69m/s0.86m/s0%24135m
01:000.76m/s1.1m/s0%24135m
02:000.84m/s1.3m/s0%24135m
03:000.94m/s1.9m/s0%24135m
04:001m/s2.5m/s0%24135m
05:001.1m/s3.2m/s0%24135m
06:001.5m/s3.4m/s0%24135m
07:001.8m/s3.6m/s0%24135m
08:002.1m/s3.8m/s0%24135m
09:002.1m/s3.5m/s0%24135m
10:002m/s3.1m/s0%24135m
11:001.9m/s2.8m/s0%24135m
12:001.9m/s2.4m/s7.4%24135m
13:001.8m/s2m/s15%24135m
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

How this forecast is made

Opportunities are threshold-based signals: PhotoWeather checks whether forecast conditions match the rules for a photography scenario. They are planning guidance, not guarantees. Forecasts can change as new model runs arrive, and confidence generally decreases farther into the forecast horizon, so recheck conditions before travelling.

The weather forecast foundation comes through Open-Meteo , which aggregates models from weather agencies. PhotoWeather applies condition-specific thresholds and derived calculations; not every condition uses every model or data input.

Forecast generated

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