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Rule Blue Hour

Lerici - Blue Hour - Cinque Terre

Lerici, Liguria, Italy

When city lights balance with the deep blue twilight sky

Currently

Real-time conditions
Cloud Cover5%
Moon Altitude8.6°

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Rome
blue-hour weather icon
Next opportunity
Good Blue Hour (clear) at Dawn
Lerici
Wed, Apr 22 · 05:54–06:00 · 1h window
Medium confidence
64%
🌉Blue Hour Quality79%
Cloud Cover: 0%
Moon Illumination: 32%
Moon Altitude: -17.4°
blue-hour weather icon
Good Blue Hour (clear) at Sunrise
Lerici
Wed, Apr 22 · 06:00–06:06
🌉Blue Hour Quality:80.9%
Medium
blue-hour weather icon
Good Blue Hour (clear) at Sunset
Lerici
Wed, Apr 22 · 20:32–20:43
🌉Blue Hour Quality:81.2%
Medium

What this forecast looks for

Plain-language explanation from the rule

This forecast identifies the twilight conditions when village lights balance perfectly with fading natural light to create magical atmospheres. We track cloud cover, visibility, and atmospheric conditions to predict optimal blue hour opportunities along the Ligurian coast.

The cliff villages transform during blue hour as house lights, restaurant lanterns, and harbour illumination create warm points of light against cool twilight. The Mediterranean's calm evening waters reflect the village lights, while the vertical architecture creates cascading patterns of illumination down to the sea.

What makes Cinque Terre special for blue-hour photography:

  • Village illumination - Dense clusters of lit windows create cascading light patterns down cliffsides
  • Harbour reflections - Calm Mediterranean waters mirror village lights and twilight colors
  • Vertical drama - Stacked houses create layered compositions from sea level to clifftop
  • Natural framing - Rocky coastlines and harbour walls provide strong compositional elements

Manarola delivers the iconic Cinque Terre blue hour scene—position at the eastern viewpoint to capture the entire village as house lights begin twinkling, balanced against deepening blue sky and reflected in the small harbour. The composition works from about 30 minutes before sunset through civil twilight's end. Vernazza's harbour offers intimate blue hour opportunities with fishing boats, the illuminated church of Santa Margherita, and restaurant lights reflecting in calm water. Riomaggiore's harbour marina creates beautiful light trails and reflections during the blue hour window. Monterosso's beach promenade and old town separation creates unique blue hour compositions with the medieval tower silhouetted against twilight. Portovenere's castle and Byron's Grotto take on dramatic character as twilight deepens and lighting activates. Timing is critical—arrive well before sunset to secure positions at popular viewpoints like Manarola's via Beccara platform, then capture the 20-30 minute window of perfect balance.

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72-hour requirements breakdown

What passed or failed, hour by hour
1matching hours in the next 95 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Rome
Blue Hour
Any
Blue Hour Quality
≥ 65.0%
Precipitation Chance
≤ 15.0%
Fri, Apr 17
21:0044%0%
22:0028%0%
23:0028%0%
Sat, Apr 18
24:0028%0%
01:0028%0%
02:0028%0%
03:0028%0%
04:0028%13%
05:0028%0%
06:0054%0%
07:0026%0%
08:0026%0%
09:0026%46%
10:0025%54%
11:0027%61%
12:0027%68%
13:0022%75%
14:0021%82%
15:0020%55%
16:0021%27%
17:0024%0%
18:0030%0%
19:0031%0%
20:0080%0%
21:0058%0%
22:0036%0%
23:0033%0%
Sun, Apr 19
24:0031%0%
01:0032%0%
02:0036%0%
03:0036%13%
04:0034%26%
05:0069%39%
06:0065%39%
07:0026%39%
08:0030%39%
09:0027%26%
10:0021%13%
11:0021%0%
12:0021%0%
13:0027%0%
14:0028%0%
15:0028%0%
16:0028%0%
17:0027%0%
18:0030%17%
19:0029%33%
20:0076%50%
21:0052%46%
22:0030%43%
23:0030%39%
Mon, Apr 20
24:0033%39%
01:0034%39%
02:0028%39%
03:0025%37%
04:0017%34%
05:0037%32%
06:0037%48%
07:0013%65%
08:0013%82%
09:0013%82%
10:0010%82%
11:0010%82%
12:0010%82%
13:0013%82%
14:0013%82%
15:0014%59%
16:0018%36%
17:0023%14%
18:0023%16%
19:0021%19%
20:0050%22%
21:0044%28%
22:0033%33%
23:0028%39%
Tue, Apr 21
24:0030%43%
01:0031%48%
02:0033%52%
03:008.6%51%
04:008.5%50%
05:0058%49%
06:0061%61%
07:003.2%73%
08:003.1%84%
09:003.3%87%
10:003.2%90%
11:003.1%93%
12:003.2%94%
13:003.2%96%
14:003.2%98%
15:002.8%78%
16:002%59%
17:001.6%39%
18:001.8%32%
19:001.9%24%
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 score

This 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/Rome
Blue Hour
High Clouds
%
Low Clouds
%
Mid-Level Clouds
%
Relative Humidity
%
Solar Elevation
°
Total Cloud Coverage
%
Visibility
m
Wind Speed
m/s
Sat, Apr 18 Sunrise 06:32 Sunset 20:07
21:00
- 5% 0% 0% 59% -9.5° 5% 24135m 2.9m/s
22:00
- 5% 1% 0% 58% -19° 5% 24134m 2.5m/s
23:00
- 29% 0% 0% 58% -26° 29% 24135m 2.3m/s
Sun, Apr 19 Sunrise 06:32 Sunset 20:07
24:00
- 98% 0% 0% 59% -32° 98% 24135m 2.2m/s
01:00
- 99% 0% 20% 60% -35° 99% 24134m 1.6m/s
02:00
- 65% 0% 79% 61% -34° 79% 24135m 0.91m/s
03:00
- 6% 0% 5% 62% -30° 6% 24135m 1.1m/s
04:00
- 25% 0% 12% 63% -24° 25% 24134m 1.5m/s
05:00
- 20% 0% 61% 64% -16° 61% 24134m 1.5m/s
06:00
- 98% 0% 27% 64% -6° 98% 24135m 1.6m/s
07:00
- 98% 0% 64% 66% 4.5° 98% 24134m 1.6m/s
08:00
- 5% 0% 5% 66% 15° 5% 24135m 1.4m/s
09:00
- 17% 0% 92% 64% 26° 92% 24135m 1.5m/s
10:00
- 100% 44% 64% 65% 36° 100% 19853m 1.3m/s
11:00
- 91% 73% 2% 68% 46° 91% 24134m 1.3m/s
12:00
- 100% 5% 5% 67% 53° 100% 24134m 1.7m/s
13:00
- 100% 0% 9% 65% 57° 100% 24135m 2.1m/s
14:00
- 100% 0% 33% 63% 56° 100% 24135m 2.1m/s
15:00
- 100% 2% 99% 63% 51° 100% 24135m 2.3m/s
16:00
- 100% 3% 83% 63% 42° 100% 24134m 2m/s
17:00
- 100% 0% 11% 63% 33° 100% 24134m 1.9m/s
18:00
- 5% 0% 0% 64% 22° 5% 24135m 2m/s
19:00
- 3% 0% 2% 67% 11° 3% 24134m 1.9m/s
20:00
- 0% 0% 0% 71% 1.1° 0% 24135m 1.7m/s
21:00
- 0% 0% 0% 74% -9.3° 0% 24134m 1.7m/s
22:00
- 0% 0% 0% 76% -18° 0% 24135m 2m/s
23:00
- 2% 0% 0% 76% -26° 2% 24135m 2.1m/s
Mon, Apr 20 Sunrise 06:30 Sunset 20:08
24:00
- 5% 0% 0% 75% -32° 5% 24134m 2m/s
01:00
- 5% 0% 1% 74% -34° 5% 24134m 1.7m/s
02:00
- 14% 6% 1% 73% -34° 14% 24135m 1.6m/s
03:00
- 5% 14% 4% 72% -30° 14% 24134m 0.95m/s
04:00
- 78% 67% 8% 73% -24° 79% 24135m 1.6m/s
05:00
- 5% 93% 5% 71% -15° 93% 24135m 1.2m/s
06:00
- 0% 99% 0% 71% -5.7° 99% 24135m 1.1m/s
07:00
- 0% 100% 0% 72% 4.7° 100% 24134m 1.4m/s
08:00
- 0% 100% 0% 74% 15° 100% 24134m 2m/s
09:00
- 1% 100% 0% 76% 26° 100% 24135m 2.1m/s
10:00
- 0% 100% 0% 76% 36° 100% 24135m 1.7m/s
11:00
- 0% 98% 0% 76% 46° 98% 24134m 1.9m/s
12:00
- 0% 100% 0% 76% 53° 100% 24135m 2.1m/s
13:00
- 0% 76% 0% 75% 57° 76% 24134m 1.8m/s
14:00
- 0% 78% 0% 73% 56° 78% 24135m 1.2m/s
15:00
- 0% 21% 0% 71% 51° 21% 24134m 0.37m/s
16:00
- 5% 14% 0% 67% 43° 14% 24135m 0.35m/s
17:00
- 7% 14% 0% 66% 33° 15% 24135m 1.3m/s
18:00
- 8% 6% 5% 70% 22° 9% 24135m 2m/s
19:00
- 7% 2% 8% 75% 12° 8% 24135m 2.5m/s
20:00
- 5% 1% 51% 80% 1.3° 51% 24134m 2.4m/s
21:00
- 5% 2% 28% 83% -9.1° 28% 24134m 2.6m/s
22:00
- 5% 6% 5% 85% -18° 8% 24134m 2.5m/s
23:00
- 8% 7% 5% 86% -26° 11% 24134m 2.4m/s
Tue, Apr 21 Sunrise 06:29 Sunset 20:10
24:00
- 5% 4% 4% 87% -31° 7% 24135m 2.6m/s
01:00
- 5% 2% 2% 87% -34° 5% 24134m 2.6m/s
02:00
- 8% 0% 0% 86% -33° 8% 24135m 2.7m/s
03:00
- 5% 10% 0% 82% -30° 15% 24135m 2.5m/s
04:00
- 3% 20% 0% 78% -23° 23% 24135m 2.2m/s
05:00
- 0% 30% 0% 74% -15° 30% 24135m 2m/s
06:00
- 0% 26% 0% 73% -5.4° 26% 22457m 2m/s
07:00
- 0% 22% 1% 73% 22% 20780m 2m/s
08:00
- 0% 17% 1% 73% 16° 17% 19102m 1.9m/s
09:00
- 0% 16% 1% 72% 26° 16% 20664m 2m/s
10:00
- 0% 14% 1% 71% 37° 14% 22225m 2m/s
11:00
- 0% 13% 1% 70% 46° 13% 23787m 2m/s
12:00
- 0% 13% 1% 71% 54° 13% 22577m 1.7m/s
13:00
- 0% 14% 0% 71% 58° 14% 21368m 1.4m/s
14:00
- 0% 14% 0% 72% 57° 14% 20159m 1.1m/s
15:00
- 1% 29% 3% 75% 51° 29% 18501m 1.6m/s
16:00
- 2% 44% 6% 77% 43° 44% 16844m 2.2m/s
17:00
- 4% 58% 9% 80% 33° 59% 15186m 2.7m/s
18:00
- 2% 52% 10% 78% 23° 53% 16162m 3m/s
19:00
- 1% 46% 12% 76% 12° 47% 17139m 3.3m/s
20:00
- 0% 39% 13% 73% 1.5° 41% 18115m 3.6m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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