Rule
Blue Hour
Pula - Blue Hour - Croatian Coast
Pula, Istria, Croatia
When city lights balance with the deep blue twilight sky
Currently
Real-time conditionsCloud Cover30%
Moon Altitude3.7°
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
Times shown in Europe/Zagreb
Next opportunity
Good Blue Hour (clear) at Sunset
Pula
Sat, Apr 11 · 20:03–20:15 · 1h window
Medium confidence
54%
🌉Blue Hour Quality69.6%
Cloud Cover: 17%
Moon Illumination: 38%
Moon Altitude: -64.4°
Good Blue Hour (clear) at Sunrise
Pula
Sun, Apr 12 · 06:00–06:06
🌉Blue Hour Quality:65.7%
Medium
Good Blue Hour (clear) at Sunset
Pula
Thu, Apr 16 · 20:10–20:22
🌉Blue Hour Quality:69.8%
Medium
Good Blue Hour (clear) at Sunrise
Pula
Sat, Apr 18 · 05:44–05:56
🌉Blue Hour Quality:78.1%
Medium
What this forecast looks for
Plain-language explanation from the ruleCroatia's Adriatic coast transforms during blue hour as medieval walled cities illuminate their honey-colored stone fortifications against the deepening twilight sky. The warm glow of street lamps and restaurant lighting creates perfect color contrast with the cool blue Adriatic atmosphere.
Dubrovnik's Old Town becomes a glowing jewel when viewed from Mount Srđ or the city walls themselves. The limestone fortifications, illuminated from within, create a golden circuit around the darkening terracotta rooftops. Split's Diocletian's Palace—a 1,700-year-old Roman structure forming the city's core—offers countless blue-hour compositions as modern cafes illuminate ancient archways.
What makes Croatian blue hour exceptional:
- Illuminated fortifications - Medieval walls and towers glowing against Adriatic twilight
- Harbor reflections - Rovinj, Hvar, and Korčula harbors mirror warm lights on calm water
- Roman integration - Ancient architecture (Split's palace, Pula's arena) illuminated for night use
- Coastal town cascades - Hillside villages create layered light displays descending to the sea
Best blue hour occurs during stable high-pressure systems when the Adriatic lies calm. Summer (June-August) offers blue hours around 8:30-9:30 PM with warm ambient temperatures. Spring and autumn provide earlier timing (7-8 PM) with fewer tourists. Arrive 45 minutes before sunset to scout compositions—the transition from golden hour to blue hour happens quickly in these latitudes.
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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/Zagreb | Blue Hour Any | Blue Hour Quality ≥ 65.0% | Precipitation Chance ≤ 15.0% |
|---|---|---|---|
| Wed, Apr 8 | |||
| 03:00 | ✕ | 8.5% | 0% |
| 04:00 | ✕ | 4.4% | 0% |
| 05:00 | ✕ | 3.8% | 0% |
| 06:00 | ✓ | 30% | 0% |
| 07:00 | ✕ | 1.5% | 0% |
| 08:00 | ✕ | 1.5% | 0% |
| 09:00 | ✕ | 1.5% | 0% |
| 10:00 | ✕ | 1.5% | 0% |
| 11:00 | ✕ | 1.5% | 0% |
| 12:00 | ✕ | 1.5% | 0% |
| 13:00 | ✕ | 1.7% | 0% |
| 14:00 | ✕ | 1.7% | 0% |
| 15:00 | ✕ | 2.7% | 0% |
| 16:00 | ✕ | 3.7% | 0% |
| 17:00 | ✕ | 3.8% | 0% |
| 18:00 | ✕ | 3.8% | 0% |
| 19:00 | ✓ | 75% | 0% |
| 20:00 | ✓ | 75% | 0% |
| 21:00 | ✕ | 11% | 0% |
| 22:00 | ✕ | 11% | 0% |
| 23:00 | ✕ | 10% | 0% |
| Thu, Apr 9 | |||
| 24:00 | ✕ | 6.2% | 0% |
| 01:00 | ✕ | 7.9% | 0% |
| 02:00 | ✕ | 8.5% | 0% |
| 03:00 | ✕ | 9.4% | 0% |
| 04:00 | ✕ | 5.9% | 0% |
| 05:00 | ✕ | 6% | 0% |
| 06:00 | ✓ | 41% | 0% |
| 07:00 | ✕ | 1.5% | 0% |
| 08:00 | ✕ | 1.5% | 0% |
| 09:00 | ✕ | 1.5% | 0% |
| 10:00 | ✕ | 1.6% | 0% |
| 11:00 | ✕ | 1.7% | 0% |
| 12:00 | ✕ | 2.3% | 0% |
| 13:00 | ✕ | 1.9% | 0% |
| 14:00 | ✕ | 1.9% | 0% |
| 15:00 | ✕ | 1.9% | 0% |
| 16:00 | ✕ | 3% | 0% |
| 17:00 | ✕ | 3% | 0% |
| 18:00 | ✕ | 3% | 0% |
| 19:00 | ✕ | 3% | 0% |
| 20:00 | ✓ | 57% | 0% |
| 21:00 | ✕ | 8.5% | 0% |
| 22:00 | ✕ | 8.8% | 0% |
| 23:00 | ✕ | 8.5% | 0% |
| Fri, Apr 10 | |||
| 24:00 | ✕ | 8.6% | 0% |
| 01:00 | ✕ | 10% | 0% |
| 02:00 | ✕ | 8.9% | 0% |
| 03:00 | ✕ | 6.6% | 0% |
| 04:00 | ✕ | 6.6% | 0% |
| 05:00 | ✓ | 44% | 0% |
| 06:00 | ✓ | 39% | 0% |
| 07:00 | ✕ | 2.2% | 0% |
| 08:00 | ✕ | 2.2% | 0% |
| 09:00 | ✕ | 2.2% | 0% |
| 10:00 | ✕ | 2.2% | 0% |
| 11:00 | ✕ | 1.7% | 0% |
| 12:00 | ✕ | 1.7% | 0% |
| 13:00 | ✕ | 2.7% | 0% |
| 14:00 | ✕ | 2.4% | 0% |
| 15:00 | ✕ | 2.6% | 0% |
| 16:00 | ✕ | 2.4% | 0% |
| 17:00 | ✕ | 2.4% | 0% |
| 18:00 | ✕ | 2.6% | 0% |
| 19:00 | ✕ | 2.6% | 0% |
| 20:00 | ✓ | 52% | 0% |
| 21:00 | ✕ | 7.8% | 0% |
| 22:00 | ✕ | 7.4% | 0% |
| 23:00 | ✕ | 7% | 0% |
| Sat, Apr 11 | |||
| 24:00 | ✕ | 7.4% | 0% |
| 01:00 | ✕ | 7.4% | 0% |
| 02:00 | ✕ | 7.4% | 0% |
| 03:00 | ✕ | 7.4% | 0% |
| 04:00 | ✕ | 7.4% | 0% |
| 05:00 | ✓ | 44% | 0% |
| 06:00 | ✓ | 44% | 0% |
| 07:00 | ✕ | 2.2% | 0% |
| 08:00 | ✕ | 3.5% | 0% |
| 09:00 | ✕ | 3% | 0% |
| 10:00 | ✕ | 3.4% | 0% |
| 11:00 | ✕ | 3.3% | 0% |
| 12:00 | ✕ | 3.4% | 0% |
| 13:00 | ✕ | 3.2% | 0% |
| 14:00 | ✕ | 3.6% | 0% |
| 15:00 | ✕ | 3.6% | 0% |
| 16:00 | ✕ | 3.5% | 0% |
| 17:00 | ✕ | 3.5% | 0% |
| 18:00 | ✕ | 3% | 0% |
| 19:00 | ✕ | 3% | 0% |
| 20:00 | ✓ | 70% | 0% |
| 21:00 | ✕ | 9.2% | 0% |
| 22:00 | ✕ | 9% | 0% |
| 23:00 | ✕ | 11% | 0% |
| Sun, Apr 12 | |||
| 24:00 | ✕ | 9% | 0% |
| 01:00 | ✕ | 9.6% | 0% |
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 scoreThis 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/Zagreb | Blue Hour | High Clouds % | Low Clouds % | Mid-Level Clouds % | Relative Humidity % | Solar Elevation ° | Total Cloud Coverage % | Visibility m | Wind Speed m/s |
|---|---|---|---|---|---|---|---|---|---|
| Thu, Apr 9
Sunrise 06:31
Sunset 19:41 | |||||||||
| 03:00 ☾ | - | 30% | 0% | 2% | 59% | -32° | 30% | 24134m | 11m/s |
| 04:00 ☾ | - | 89% | 45% | 0% | 56% | -25° | 89% | 24135m | 11m/s |
| 05:00 ☾ | - | 99% | 74% | 0% | 56% | -16° | 99% | 24135m | 11m/s |
| 06:00 ☾ | - | 100% | 100% | 0% | 54% | -6.1° | 100% | 24135m | 10m/s |
| 07:00 | - | 100% | 100% | 53% | 54% | 4.4° | 100% | 24134m | 9.4m/s |
| 08:00 | - | 95% | 100% | 98% | 56% | 15° | 100% | 24134m | 8.7m/s |
| 09:00 | - | 96% | 100% | 65% | 57% | 25° | 100% | 24134m | 8.1m/s |
| 10:00 | - | 93% | 100% | 94% | 57% | 35° | 100% | 24135m | 7.4m/s |
| 11:00 | - | 100% | 100% | 11% | 56% | 44° | 100% | 24134m | 6.4m/s |
| 12:00 | - | 100% | 100% | 99% | 55% | 50° | 100% | 24135m | 5.1m/s |
| 13:00 | - | 100% | 93% | 100% | 54% | 53° | 100% | 24135m | 4m/s |
| 14:00 | - | 100% | 90% | 100% | 54% | 51° | 100% | 24135m | 3.3m/s |
| 15:00 | - | 100% | 74% | 100% | 54% | 45° | 100% | 24135m | 2.6m/s |
| 16:00 | - | 100% | 12% | 100% | 53% | 37° | 100% | 24134m | 1.9m/s |
| 17:00 | - | 100% | 5% | 100% | 55% | 28° | 100% | 24135m | 0.85m/s |
| 18:00 | - | 100% | 3% | 100% | 58% | 17° | 100% | 24134m | 0.78m/s |
| 19:00 | - | 100% | 0% | 100% | 58% | 6.7° | 100% | 24134m | 1.6m/s |
| 20:00 ☾ | - | 100% | 0% | 100% | 60% | -3.8° | 100% | 24135m | 2m/s |
| 21:00 ☾ | - | 100% | 0% | 100% | 62% | -14° | 100% | 24135m | 2.1m/s |
| 22:00 ☾ | - | 100% | 0% | 35% | 62% | -23° | 100% | 24134m | 2m/s |
| 23:00 ☾ | - | 100% | 0% | 32% | 62% | -30° | 100% | 24134m | 2.8m/s |
| Fri, Apr 10
Sunrise 06:31
Sunset 19:41 | |||||||||
| 24:00 ☾ | - | 37% | 0% | 5% | 66% | -35° | 37% | 24135m | 4m/s |
| 01:00 ☾ | - | 5% | 0% | 5% | 68% | -37° | 5% | 24134m | 4.5m/s |
| 02:00 ☾ | - | 14% | 0% | 5% | 68% | -36° | 14% | 24135m | 4.2m/s |
| 03:00 ☾ | - | 100% | 0% | 2% | 67% | -31° | 100% | 24134m | 4.5m/s |
| 04:00 ☾ | - | 100% | 0% | 2% | 66% | -24° | 100% | 24134m | 4.6m/s |
| 05:00 ☾ | - | 100% | 1% | 5% | 65% | -16° | 100% | 24135m | 4.8m/s |
| 06:00 ☾ | - | 100% | 16% | 10% | 65% | -5.8° | 100% | 24134m | 5m/s |
| 07:00 | - | 100% | 53% | 27% | 65% | 4.7° | 100% | 24134m | 5m/s |
| 08:00 | - | 100% | 70% | 8% | 64% | 15° | 100% | 24135m | 5.3m/s |
| 09:00 | - | 100% | 69% | 28% | 63% | 26° | 100% | 24134m | 4.9m/s |
| 10:00 | - | 90% | 75% | 52% | 62% | 36° | 94% | 24134m | 5.1m/s |
| 11:00 | - | 70% | 87% | 100% | 63% | 44° | 100% | 24135m | 5.2m/s |
| 12:00 | - | 100% | 76% | 100% | 64% | 50° | 100% | 24135m | 5m/s |
| 13:00 | - | 98% | 12% | 100% | 64% | 53° | 100% | 24134m | 4.7m/s |
| 14:00 | - | 100% | 1% | 100% | 65% | 51° | 100% | 24134m | 4.7m/s |
| 15:00 | - | 100% | 4% | 100% | 66% | 46° | 100% | 24134m | 3.9m/s |
| 16:00 | - | 100% | 0% | 100% | 70% | 37° | 100% | 24134m | 4.1m/s |
| 17:00 | - | 100% | 0% | 100% | 71% | 28° | 100% | 24134m | 4m/s |
| 18:00 | - | 100% | 0% | 100% | 70% | 17° | 100% | 24134m | 3.5m/s |
| 19:00 | - | 100% | 0% | 100% | 69% | 6.9° | 100% | 24135m | 3.3m/s |
| 20:00 ☾ | - | 100% | 0% | 100% | 68% | -3.6° | 100% | 24135m | 2.7m/s |
| 21:00 ☾ | - | 100% | 0% | 100% | 66% | -14° | 100% | 24135m | 3.5m/s |
| 22:00 ☾ | - | 100% | 0% | 100% | 68% | -23° | 100% | 24134m | 5.5m/s |
| 23:00 ☾ | - | 100% | 0% | 100% | 70% | -30° | 100% | 24135m | 6.5m/s |
| Sat, Apr 11
Sunrise 06:29
Sunset 19:43 | |||||||||
| 24:00 ☾ | - | 100% | 1% | 100% | 68% | -35° | 100% | 24134m | 5.3m/s |
| 01:00 ☾ | - | 100% | 3% | 100% | 67% | -37° | 100% | 24135m | 5.4m/s |
| 02:00 ☾ | - | 100% | 5% | 100% | 68% | -35° | 100% | 24134m | 5.2m/s |
| 03:00 ☾ | - | 100% | 5% | 96% | 67% | -31° | 100% | 24134m | 4.7m/s |
| 04:00 ☾ | - | 100% | 0% | 63% | 67% | -24° | 100% | 24134m | 4.4m/s |
| 05:00 ☾ | - | 100% | 0% | 9% | 68% | -15° | 100% | 24135m | 4.6m/s |
| 06:00 ☾ | - | 100% | 0% | 9% | 69% | -5.5° | 100% | 24135m | 5m/s |
| 07:00 | - | 98% | 1% | 5% | 69% | 5° | 98% | 24135m | 4.8m/s |
| 08:00 | - | 5% | 2% | 5% | 69% | 16° | 5% | 24135m | 4.9m/s |
| 09:00 | - | 3% | 9% | 3% | 65% | 26° | 11% | 24135m | 4.2m/s |
| 10:00 | - | 2% | 16% | 2% | 62% | 36° | 17% | 24135m | 3.4m/s |
| 11:00 | - | 0% | 24% | 0% | 59% | 45° | 24% | 24135m | 2.6m/s |
| 12:00 | - | 0% | 17% | 0% | 65% | 51° | 17% | 24135m | 2.1m/s |
| 13:00 | - | 0% | 9% | 0% | 71% | 54° | 9% | 24135m | 1.7m/s |
| 14:00 | - | 0% | 2% | 0% | 76% | 52° | 2% | 24135m | 1.2m/s |
| 15:00 | - | 2% | 1% | 0% | 77% | 46° | 3% | 24135m | 1.3m/s |
| 16:00 | - | 3% | 1% | 0% | 78% | 38° | 4% | 24135m | 1.3m/s |
| 17:00 | - | 5% | 0% | 0% | 79% | 28° | 5% | 24135m | 1.4m/s |
| 18:00 | - | 9% | 2% | 0% | 78% | 18° | 9% | 24135m | 1.5m/s |
| 19:00 | - | 13% | 5% | 0% | 77% | 7.1° | 13% | 24135m | 1.7m/s |
| 20:00 ☾ | - | 17% | 7% | 0% | 77% | -3.4° | 17% | 24135m | 1.8m/s |
| 21:00 ☾ | - | 11% | 5% | 0% | 78% | -13° | 11% | 24135m | 1.9m/s |
| 22:00 ☾ | - | 6% | 2% | 0% | 79% | -22° | 6% | 24135m | 2.1m/s |
| 23:00 ☾ | - | 0% | 0% | 0% | 80% | -30° | 0% | 24135m | 2.2m/s |
| Sun, Apr 12
Sunrise 06:27
Sunset 19:44 | |||||||||
| 24:00 ☾ | - | 7% | 8% | 0% | 77% | -35° | 10% | 24135m | 2m/s |
| 01:00 ☾ | - | 14% | 15% | 0% | 74% | -37° | 21% | 24135m | 1.9m/s |
| 02:00 ☾ | - | 20% | 23% | 0% | 72% | -35° | 31% | 24135m | 1.7m/s |
How to read: these inputs help produce the derived score; they are not requirements by themselves.
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