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Rule Blue Hour

Blue Hour Forecast for San Gimignano, Tuscany

San Gimignano, Tuscany, Italy

San Gimignano's medieval towers create a distinctive skyline above vineyards and olive groves, with surrounding hills supplying graduated depth.

Currently

Real-time conditions
Cloud Cover0%
Moon Altitude17.5°

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
San Gimignano
Tomorrow · 05:59–06:00 · 1h window
Medium confidence
67%
🌉Blue Hour Quality70.6%
Cloud Cover: 0%
Moon Illumination: 80%
Moon Altitude: -35.7°
blue-hour weather icon
Good Blue Hour (clear) at Sunrise
San Gimignano
Tomorrow · 06:00–06:10
🌉Blue Hour Quality:70.6%
Medium
blue-hour weather icon
Good Blue Hour (clear) at Sunset
San Gimignano
Tomorrow · 20:25–20:37
🌉Blue Hour Quality:79.3%
High
blue-hour weather icon
Good Blue Hour (clear) at Sunrise
San Gimignano
Mon, Aug 24 · 06:00–06:11
🌉Blue Hour Quality:77.7%
High
blue-hour weather icon
Good Blue Hour (clear) at Sunset
San Gimignano
Tue, Aug 25 · 20:22–20:33
🌉Blue Hour Quality:68%
Medium
blue-hour weather icon
Good Blue Hour (clear) at Sunrise
San Gimignano
Wed, Aug 26 · 06:02–06:14
🌉Blue Hour Quality:76.7%
Medium
blue-hour weather icon
Good Blue Hour (clear) at Sunrise
San Gimignano
Thu, Aug 27 · 06:03–06:15
🌉Blue Hour Quality:78.1%
Medium
+3 more windows in the next 14 days

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Blue Hour conditions across Tuscany. The requirements and hourly values below show how those signals apply at San Gimignano.

Explore Blue Hour conditions across Tuscany →

Recorded match history

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

Last 30 days
50
recorded matching windows · 76% average confidence
Last 90 days
139
recorded matching windows · 77% average confidence
Last 365 days
219
recorded matching windows · 77% average confidence
Most frequent recorded start hour

05:00 local time, shared by 84 of 219 matches recorded in the last 365 days.

Most represented month

July, with 48 of 219 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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86-hour requirements breakdown

When available, the detailed table below covers only the stated 86-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 86 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%
Sat, Aug 22
06:0069%2.3%
07:0025%1.2%
08:0025%0%
09:0024%0%
10:0025%0%
11:0025%0%
12:0024%0%
13:0024%0%
14:0024%0%
15:0024%0%
16:0025%0%
17:0025%0%
18:0025%0%
19:0025%0%
20:0080%0%
21:0055%0%
22:0029%0%
23:0029%0%
Sun, Aug 23
24:0029%0%
01:0029%0%
02:0029%0%
03:0029%0%
04:0027%0%
05:0071%0%
06:0071%0%
07:0022%0%
08:0024%0%
09:0025%0%
10:0025%0%
11:0025%0%
12:0024%0%
13:0024%0%
14:0022%0%
15:0022%0%
16:0022%0%
17:0022%0%
18:0022%0%
19:0024%0%
20:0079%0%
21:0059%0%
22:0036%0%
23:0033%0%
Mon, Aug 24
24:0033%0%
01:0032%0%
02:0029%0%
03:0029%0%
04:0034%0%
05:0033%0%
06:0078%0%
07:0027%0%
08:0025%0%
09:0025%0%
10:0028%0%
11:0027%0%
12:0027%0%
13:0025%0%
14:0027%0%
15:0027%0%
16:0025%0%
17:0024%0%
18:0024%7.4%
19:0026%15%
20:0062%22%
21:0031%26%
22:0032%29%
23:0032%32%
Tue, Aug 25
24:0031%44%
01:0031%56%
02:0031%68%
03:008.2%62%
04:008%56%
05:007.4%49%
06:0053%52%
07:002.9%54%
08:002.2%56%
09:002%43%
10:002.6%30%
11:002.6%17%
12:002.4%17%
13:002.7%17%
14:002.6%17%
15:002.7%11%
16:003%5.6%
17:003.1%0%
18:003.3%0%
19:003.3%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 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, Aug 22 Sunrise 06:28 Sunset 20:08
22:00
- 0% 0% 0% 70% -19° 0% 24135m 1.1m/s
23:00
- 0% 0% 0% 72% -27° 0% 24135m 1.7m/s
Sun, Aug 23 Sunrise 06:28 Sunset 20:08
24:00
- 0% 0% 0% 73% -32° 0% 24134m 1.9m/s
01:00
- 0% 0% 0% 73% -35° 0% 24134m 1.8m/s
02:00
- 0% 0% 0% 75% -34° 0% 24134m 1.4m/s
03:00
- 0% 0% 0% 77% -30° 0% 24134m 1.1m/s
04:00
- 0% 0% 0% 80% -24° 0% 24134m 1.1m/s
05:00
- 0% 0% 0% 82% -16° 0% 24134m 1.2m/s
06:00
- 0% 0% 0% 84% -5.8° 0% 24134m 1.2m/s
07:00
- 0% 0% 0% 82% 4.7° 0% 24135m 1.2m/s
08:00
- 0% 0% 0% 71% 15° 0% 24135m 0.93m/s
09:00
- 0% 0% 0% 62% 26° 0% 24135m 1.3m/s
10:00
- 0% 0% 0% 52% 37° 0% 24134m 1.6m/s
11:00
- 0% 0% 0% 42% 46° 0% 24134m 1.9m/s
12:00
- 0% 0% 0% 34% 54° 0% 24134m 1.9m/s
13:00
- 0% 0% 0% 29% 58° 0% 24135m 2.2m/s
14:00
- 0% 0% 0% 25% 57° 0% 24135m 2.6m/s
15:00
- 0% 0% 0% 23% 51° 0% 24135m 2.8m/s
16:00
- 0% 0% 0% 22% 43° 0% 24134m 2.8m/s
17:00
- 0% 0% 0% 22% 33° 0% 24135m 3m/s
18:00
- 0% 0% 0% 24% 22° 0% 24135m 3.7m/s
19:00
- 0% 0% 0% 36% 11° 0% 24134m 4.7m/s
20:00
- 0% 0% 0% 56% 0.78° 0% 24135m 2.2m/s
21:00
- 4% 0% 0% 62% -9.8° 4% 24134m 1.3m/s
22:00
- 5% 0% 0% 66% -19° 5% 24134m 0.99m/s
23:00
- 5% 0% 0% 67% -27° 5% 24134m 0.57m/s
Mon, Aug 24 Sunrise 06:29 Sunset 20:06
24:00
- 5% 0% 0% 68% -32° 5% 24134m 0.67m/s
01:00
- 21% 0% 0% 70% -35° 21% 24134m 0.88m/s
02:00
- 80% 0% 0% 72% -35° 80% 24134m 1.1m/s
03:00
- 83% 0% 0% 73% -31° 83% 24134m 1.2m/s
04:00
- 69% 0% 0% 73% -24° 69% 24134m 1.2m/s
05:00
- 13% 0% 0% 74% -16° 13% 24135m 1.3m/s
06:00
- 1% 0% 0% 74% -6° 1% 24134m 1.3m/s
07:00
- 0% 0% 0% 72% 4.5° 0% 24134m 1.4m/s
08:00
- 0% 0% 0% 61% 15° 0% 24134m 1.2m/s
09:00
- 0% 0% 0% 51% 26° 0% 24134m 1.3m/s
10:00
- 0% 0% 0% 44% 36° 0% 24135m 1.4m/s
11:00
- 5% 0% 0% 37% 46° 5% 24135m 1.7m/s
12:00
- 5% 0% 0% 30% 53° 5% 24134m 1.8m/s
13:00
- 5% 0% 0% 26% 57° 5% 24134m 2m/s
14:00
- 5% 0% 0% 23% 56° 5% 24134m 2m/s
15:00
- 5% 0% 0% 22% 51° 5% 24134m 2.3m/s
16:00
- 28% 0% 0% 21% 42° 28% 24135m 2.9m/s
17:00
- 100% 0% 0% 22% 32° 100% 24134m 4.1m/s
18:00
- 100% 0% 0% 29% 22° 100% 24135m 5.9m/s
19:00
- 100% 0% 0% 38% 11° 100% 24134m 4.4m/s
20:00
- 100% 0% 0% 47% 0.53° 100% 24135m 2.6m/s
21:00
- 100% 0% 0% 52% -10° 100% 24134m 1.7m/s
22:00
- 42% 0% 86% 54% -19° 86% 24134m 2.2m/s
23:00
- 60% 0% 0% 56% -27° 60% 24134m 1m/s
Tue, Aug 25 Sunrise 06:30 Sunset 20:04
24:00
- 67% 0% 0% 56% -33° 67% 24135m 1.3m/s
01:00
- 98% 0% 1% 54% -36° 98% 24134m 2.3m/s
02:00
- 100% 0% 2% 55% -35° 100% 24134m 0.88m/s
03:00
- 100% 0% 2% 59% -31° 100% 24134m 1m/s
04:00
- 100% 0% 3% 63% -24° 100% 24134m 1.2m/s
05:00
- 100% 1% 3% 67% -16° 100% 24135m 1.4m/s
06:00
- 100% 7% 10% 58% -6.2° 100% 24135m 2m/s
07:00
- 100% 14% 18% 49% 4.3° 100% 24135m 2.7m/s
08:00
- 100% 21% 25% 40% 15° 100% 24135m 3.4m/s
09:00
- 100% 15% 22% 38% 26° 100% 24135m 4.2m/s
10:00
- 100% 10% 19% 36% 36° 100% 24135m 5m/s
11:00
- 100% 4% 16% 34% 46° 100% 24135m 5.8m/s
12:00
- 100% 3% 12% 43% 53° 100% 24135m 4.6m/s
13:00
- 100% 1% 8% 52% 57° 100% 24135m 3.5m/s
14:00
- 100% 0% 5% 62% 56° 100% 24135m 2.3m/s
15:00
- 72% 0% 16% 67% 50° 79% 24135m 1.8m/s
16:00
- 45% 0% 27% 73% 42° 58% 24135m 1.4m/s
17:00
- 17% 0% 38% 79% 32° 38% 24135m 0.96m/s
18:00
- 18% 0% 25% 80% 21° 32% 24135m 1m/s
19:00
- 20% 0% 13% 80% 11° 26% 24135m 1.1m/s
20:00
- 21% 0% 0% 81% 0.28° 21% 24135m 1.2m/s
21:00
- 15% 0% 0% 84% -10° 15% 24135m 1.2m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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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