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Rule Blue Hour

Luberon - Blue Hour - Provence

Apt, Provence, France

When city lights balance with the deep blue twilight sky

Currently

Real-time conditions
Cloud Cover100%
Moon Altitude7.0°

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Paris
blue-hour weather icon
Next opportunity
Good Blue Hour (clear) at Sunrise
Luberon
Tomorrow · 05:28–05:42 · 1h window
High confidence
77%
🌉Blue Hour Quality79.6%
Cloud Cover: 0%
Moon Illumination: 71%
Moon Altitude: -20.0°
blue-hour weather icon
Good Blue Hour (clear) at Sunrise
Luberon
Tue, May 26 · 05:27–05:41
🌉Blue Hour Quality:78.6%
High
blue-hour weather icon
Good Blue Hour (clear) at Sunrise
Luberon
Fri, May 29 · 05:25–05:39
🌉Blue Hour Quality:78.1%
Low

What this forecast looks for

Plain-language explanation from the rule

This forecast tracks the enchanting twilight conditions that transform Provence's perched villages and historic landmarks into glowing scenes worthy of the painters who made this region famous. We combine cloud cover, visibility, and atmospheric conditions to predict optimal blue hour photography opportunities.

Provence's hilltop villages take on magical quality during blue hour—their honey-colored stone buildings glowing with warm light against deepening Mediterranean twilight. The region's unique architecture and dramatic cliff-edge positions create compositions that capture the essence of southern French beauty.

What makes Provence special for blue-hour photography:

  • Perched village drama - Gordes clinging to its clifftop, lights twinkling as twilight deepens
  • Ochre landscapes - Roussillon's red cliffs catching last light while village windows glow
  • Lavender twilight - Summer's lavender fields taking on purple-blue tones during blue hour
  • Roman monuments - Pont du Gard and other ancient structures illuminated against twilight sky

Gordes offers one of Provence's most spectacular blue hour views—the entire village appears to cascade down the hillside, its stone buildings glowing warm against the Luberon valley and twilight sky beyond. Roussillon's ochre cliffs create unique color harmony during blue hour, with the naturally orange-red earth tones complementing both the warm village lights and cool twilight. The Pont du Gard aqueduct is dramatically illuminated after dark, and blue hour provides the perfect balance between this artificial lighting and natural sky color. During lavender season, the fields retain their purple tones during twilight, creating dreamy blue-and-purple compositions. The timing is critical—arrive 30 minutes before sunset to scout positions, then capture the 20-30 minute window when light balance is perfect.

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72-hour requirements breakdown

What passed or failed, hour by hour
2matching hours in the next 80 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Paris
Blue Hour
Any
Blue Hour Quality
≥ 65.0%
Precipitation Chance
≤ 15.0%
Sun, May 24
06:0054%0%
07:0026%0%
08:0027%0%
09:0028%0%
10:0028%0%
11:0031%0%
12:0028%19%
13:0031%37%
14:0028%56%
15:0026%68%
16:0026%80%
17:0026%92%
18:0028%89%
19:0027%86%
20:0028%84%
21:0063%56%
22:0046%28%
23:0029%0%
Mon, May 25
24:0035%0%
01:0033%0%
02:0032%0%
03:0032%0%
04:0032%0%
05:0080%0%
06:0059%0%
07:0029%0%
08:0031%0%
09:0031%0%
10:0031%0%
11:0031%0%
12:0029%0%
13:0029%0%
14:0029%0%
15:0029%4.3%
16:0029%8.5%
17:0029%13%
18:0025%25%
19:0018%38%
20:0018%50%
21:0057%33%
22:0059%17%
23:0034%0%
Tue, May 26
24:0035%0%
01:0036%0%
02:0037%0%
03:0034%0%
04:0036%0%
05:0079%0%
06:0058%0%
07:0029%0%
08:0033%0%
09:0031%0%
10:0031%0%
11:0032%0%
12:0031%0%
13:0031%0%
14:0031%0%
15:0031%7.4%
16:0022%15%
17:0026%22%
18:0029%31%
19:0029%41%
20:0031%50%
21:0069%33%
22:0046%17%
23:0011%0%
Wed, May 27
24:0010%0%
01:009.4%0%
02:008.7%0%
03:008.4%0%
04:008.2%0%
05:0054%0%
06:0016%0%
07:002.6%0%
08:002.4%0%
09:002.3%3.3%
10:002.3%6.7%
11:002.3%10%
12:002.3%20%
13:002.4%29%
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/Paris
Blue Hour
High Clouds
%
Low Clouds
%
Mid-Level Clouds
%
Relative Humidity
%
Solar Elevation
°
Total Cloud Coverage
%
Visibility
m
Wind Speed
m/s
Sun, May 24 Sunrise 06:04 Sunset 21:06
15:00
- 100% 0% 0% 38% 61° 100% 24135m 1.9m/s
16:00
- 100% 1% 0% 38% 52° 100% 24135m 2.7m/s
17:00
- 52% 3% 0% 42% 42° 54% 24134m 6.3m/s
18:00
- 63% 1% 0% 47% 31° 63% 24134m 6m/s
19:00
- 100% 0% 2% 53% 21° 100% 24134m 4.3m/s
20:00
- 100% 0% 16% 65% 10° 100% 24134m 1.8m/s
21:00
- 98% 0% 34% 70% 0.67° 98% 24135m 1.7m/s
22:00
- 98% 0% 93% 77% -8.6° 98% 24134m 2.2m/s
23:00
- 98% 0% 98% 79% -16° 98% 24135m 2.8m/s
Mon, May 25 Sunrise 06:04 Sunset 21:06
24:00
- 34% 0% 13% 78% -22° 35% 24134m 2.6m/s
01:00
- 5% 0% 1% 76% -25° 5% 24135m 2.4m/s
02:00
- 4% 0% 4% 74% -25° 4% 24135m 2.4m/s
03:00
- 0% 0% 0% 71% -22° 0% 24135m 2.6m/s
04:00
- 0% 0% 0% 67% -17° 0% 24135m 2.5m/s
05:00
- 0% 0% 0% 63% -10° 0% 24135m 2.5m/s
06:00
- 5% 0% 0% 60% -1.2° 5% 24134m 2.4m/s
07:00
- 5% 0% 0% 61% 8.4° 5% 24134m 2.3m/s
08:00
- 5% 0% 0% 57% 19° 5% 24134m 1.6m/s
09:00
- 5% 0% 0% 48% 29° 5% 24135m 1.1m/s
10:00
- 5% 0% 0% 46% 40° 5% 24134m 1.2m/s
11:00
- 5% 0% 0% 43% 51° 5% 24135m 2m/s
12:00
- 9% 0% 0% 41% 60° 9% 24135m 2.4m/s
13:00
- 5% 0% 0% 40% 66° 5% 24134m 2.9m/s
14:00
- 5% 0% 0% 38% 67° 5% 24135m 2.3m/s
15:00
- 5% 0% 0% 36% 61° 5% 24134m 1.4m/s
16:00
- 5% 0% 0% 34% 52° 5% 24134m 0.97m/s
17:00
- 5% 1% 1% 33% 42° 6% 24134m 2m/s
18:00
- 6% 48% 9% 41% 31° 48% 24134m 5.7m/s
19:00
- 5% 99% 95% 52% 21° 99% 24135m 4.4m/s
20:00
- 0% 100% 0% 56% 10° 100% 24134m 1m/s
21:00
- 4% 55% 0% 54% 0.79° 56% 24135m 0.75m/s
22:00
- 5% 0% 0% 58% -8.5° 5% 24134m 0.56m/s
23:00
- 5% 0% 0% 61% -16° 5% 24135m 1.1m/s
Tue, May 26 Sunrise 06:03 Sunset 21:07
24:00
- 15% 0% 0% 62% -21° 15% 24134m 1.8m/s
01:00
- 5% 0% 0% 63% -25° 5% 24134m 2m/s
02:00
- 48% 0% 0% 63% -25° 48% 24135m 2m/s
03:00
- 5% 0% 0% 64% -22° 5% 24134m 2.1m/s
04:00
- 5% 0% 0% 65% -17° 5% 24135m 2.1m/s
05:00
- 5% 0% 0% 66% -9.9° 5% 24134m 2m/s
06:00
- 5% 0% 0% 67% -1° 5% 24134m 2m/s
07:00
- 5% 0% 0% 68% 8.5° 5% 24134m 1.9m/s
08:00
- 26% 0% 0% 61% 19° 26% 24135m 1.2m/s
09:00
- 5% 0% 0% 54% 30° 5% 24134m 0.49m/s
10:00
- 5% 0% 0% 49% 40° 5% 24135m 1.2m/s
11:00
- 5% 0% 0% 47% 51° 5% 24134m 2.2m/s
12:00
- 18% 0% 0% 46% 60° 18% 24135m 2.5m/s
13:00
- 22% 1% 0% 44% 66° 22% 24134m 3m/s
14:00
- 14% 4% 0% 41% 67° 17% 24134m 3.5m/s
15:00
- 6% 11% 0% 39% 61° 12% 24134m 4m/s
16:00
- 6% 76% 0% 38% 53° 76% 24135m 3.8m/s
17:00
- 8% 32% 0% 42% 42° 32% 24135m 3.2m/s
18:00
- 5% 1% 0% 39% 32° 5% 24134m 3.4m/s
19:00
- 5% 0% 0% 46% 21° 5% 24135m 4m/s
20:00
- 5% 0% 0% 58% 10° 5% 24134m 3.1m/s
21:00
- 12% 0% 0% 58% 0.92° 12% 24134m 2.8m/s
22:00
- 20% 0% 0% 58% -8.3° 20% 24135m 2.6m/s
23:00
- 27% 0% 0% 58% -16° 27% 24135m 2.3m/s
Wed, May 27 Sunrise 06:03 Sunset 21:08
24:00
- 37% 0% 2% 59% -21° 37% 24135m 2m/s
01:00
- 48% 0% 3% 59% -24° 48% 24135m 1.7m/s
02:00
- 58% 0% 5% 60% -25° 58% 24135m 1.3m/s
03:00
- 72% 0% 3% 55% -22° 72% 24135m 1.4m/s
04:00
- 86% 0% 2% 50% -17° 86% 24135m 1.5m/s
05:00
- 100% 0% 0% 46% -9.8° 100% 24135m 1.6m/s
06:00
- 100% 0% 0% 43% -0.88° 100% 24135m 2.2m/s
07:00
- 100% 0% 0% 41% 8.6° 100% 24135m 2.9m/s
08:00
- 100% 0% 0% 39% 19° 100% 24135m 3.5m/s
09:00
- 100% 1% 0% 37% 30° 100% 24135m 4.2m/s
10:00
- 100% 2% 0% 35% 40° 100% 24135m 4.9m/s
11:00
- 100% 3% 0% 33% 51° 100% 24135m 5.6m/s
12:00
- 88% 2% 0% 39% 60° 88% 24135m 4.8m/s
13:00
- 77% 1% 0% 44% 66° 77% 24135m 4m/s
14:00
- 65% 0% 0% 49% 67° 65% 24135m 3.2m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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