Skip to content
Rule Blue Hour

Blue Hour Forecast for Sennen Cove, Cornwall

Sennen, England, United Kingdom

Sennen Cove offers a broad sandy arc, granite headlands and Atlantic surf, with wave lines and storm cloud providing rhythm across the exposed bay.

Currently

Real-time conditions
Cloud Cover74%
Moon Altitude17.3°

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/London
blue-hour weather icon
Next opportunity
Good Blue Hour (clear) at Sunset
Sennen Cove
Today · 21:48–22:00 · 1h window
Medium confidence
67%
🌉Blue Hour Quality69.2%
Cloud Cover: 0%
Moon Illumination: 31%
Moon Altitude: 21.3°
blue-hour weather icon
Good Blue Hour (clear) at Dusk
Sennen Cove
Today · 22:00–22:04
🌉Blue Hour Quality:70.1%
Medium
blue-hour weather icon
Good Blue Hour (clear) at Sunset
Sennen Cove
Tomorrow · 21:47–22:00
🌉Blue Hour Quality:68.4%
Medium
blue-hour weather icon
Good Blue Hour (clear) at Dusk
Sennen Cove
Tomorrow · 22:00–22:03
🌉Blue Hour Quality:66.9%
Medium
blue-hour weather icon
Good Blue Hour (clear) at Dawn
Sennen Cove
Tue, Jul 21 · 04:55–05:00
🌉Blue Hour Quality:65.7%
Medium
blue-hour weather icon
Good Blue Hour (clear) at Sunrise
Sennen Cove
Tue, Jul 21 · 05:00–05:11
🌉Blue Hour Quality:65.7%
Medium
blue-hour weather icon
Good Blue Hour (clear) at Dawn
Sennen Cove
Thu, Jul 23 · 04:58–05:00
🌉Blue Hour Quality:65.1%
Medium
+4 more windows in the next 14 days

How this forecast is evaluated

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

Explore Blue Hour conditions across Cornwall →

Recorded match history

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

Last 30 days
28
recorded matching windows · 70% average confidence
Last 90 days
47
recorded matching windows · 69% average confidence
Last 365 days
61
recorded matching windows · 70% average confidence
Most frequent recorded start hour

04:00 local time, shared by 15 of 61 matches recorded in the last 365 days.

Most represented month

July, with 24 of 61 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.

Create your own Blue Hour alerts

Get notified when these conditions match at your own locations.

Get this template

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/London
Blue Hour
Any
Blue Hour Quality
≥ 65.0%
Precipitation Chance
≤ 15.0%
Sun, Jul 19
05:0046%0%
06:0024%0%
07:0024%0%
08:0024%0%
09:0029%0%
10:0027%0%
11:0025%0%
12:0029%0%
13:0025%0%
14:0025%0%
15:0025%0%
16:0026%0%
17:0023%0%
18:0024%0%
19:0020%0%
20:0024%0%
21:0069%0%
22:0070%0%
23:0032%0%
Mon, Jul 20
24:0032%0%
01:0034%0%
02:0032%0%
03:0026%0%
04:0053%0%
05:0053%0%
06:0024%0%
07:0025%0%
08:0026%0%
09:0026%0%
10:0027%0%
11:0027%0%
12:0026%0%
13:0029%0%
14:0028%0%
15:0029%0%
16:0027%0%
17:0027%0%
18:0024%0%
19:0024%0%
20:0026%0%
21:0068%0%
22:0067%0%
23:0029%0%
Tue, Jul 21
24:0029%0%
01:0029%0%
02:0029%0%
03:0029%0%
04:0066%0%
05:0066%0%
06:0022%0%
07:0025%0%
08:0025%0%
09:0025%0%
10:0025%0%
11:0025%0%
12:0024%0%
13:0024%0%
14:0024%0%
15:0024%0%
16:0024%0%
17:0027%0%
18:0027%0%
19:0026%0%
20:002.8%0%
21:0041%0%
22:0038%0%
23:006%0%
Wed, Jul 22
24:007.9%0%
01:007.8%0%
02:008.3%0%
03:006.5%0%
04:0042%0%
05:0042%0%
06:002.1%0%
07:002.1%0%
08:002.2%0%
09:002.2%0%
10:002%0%
11:002%0%
12:002%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/London
Blue Hour
High Clouds
%
Low Clouds
%
Mid-Level Clouds
%
Relative Humidity
%
Solar Elevation
°
Total Cloud Coverage
%
Visibility
m
Wind Speed
m/s
Sun, Jul 19 Sunrise 05:34 Sunset 21:22
14:00
- 74% 0% 0% 78% 60° 74% 24135m 5.8m/s
15:00
- 84% 0% 9% 77% 56° 84% 24135m 5.8m/s
16:00
- 59% 0% 1% 76% 48° 59% 24134m 5.5m/s
17:00
- 1% 0% 4% 75% 39° 4% 24135m 4.2m/s
18:00
- 0% 0% 4% 75% 30° 4% 24135m 3.7m/s
19:00
- 0% 2% 5% 73% 20° 6% 24134m 2.8m/s
20:00
- 0% 0% 4% 73% 11° 4% 24135m 1.5m/s
21:00
- 0% 0% 0% 76% 2.5° 0% 24134m 2.8m/s
22:00
- 0% 0% 0% 79% -5.4° 0% 24134m 4.1m/s
23:00
- 4% 0% 0% 83% -12° 4% 24134m 4.7m/s
Mon, Jul 20 Sunrise 05:34 Sunset 21:22
24:00
- 20% 0% 0% 84% -16° 20% 24134m 5.2m/s
01:00
- 5% 0% 0% 81% -19° 5% 24135m 6m/s
02:00
- 5% 0% 0% 79% -19° 5% 24135m 6.6m/s
03:00
- 91% 0% 0% 78% -16° 91% 24134m 6.7m/s
04:00
- 100% 0% 87% 78% -12° 100% 24134m 7.1m/s
05:00
- 100% 0% 53% 81% -5.3° 100% 24134m 6.9m/s
06:00
- 6% 0% 51% 81% 2.7° 51% 24135m 6m/s
07:00
- 5% 0% 5% 81% 11° 5% 24135m 5.5m/s
08:00
- 3% 0% 5% 76% 21° 5% 24134m 5.2m/s
09:00
- 0% 0% 5% 73% 30° 5% 24135m 5m/s
10:00
- 1% 0% 0% 72% 40° 1% 24135m 2.9m/s
11:00
- 5% 0% 0% 72% 48° 5% 24134m 1.9m/s
12:00
- 5% 0% 0% 78% 56° 5% 24134m 3.2m/s
13:00
- 5% 0% 0% 78% 60° 5% 24134m 3.6m/s
14:00
- 51% 0% 0% 73% 60° 51% 24134m 3.7m/s
15:00
- 6% 0% 0% 70% 55° 6% 24134m 2.8m/s
16:00
- 5% 0% 0% 67% 48° 5% 24135m 0.64m/s
17:00
- 1% 0% 0% 70% 39° 1% 24134m 2.3m/s
18:00
- 0% 0% 0% 72% 30° 0% 24135m 4.4m/s
19:00
- 0% 0% 0% 74% 20° 0% 24135m 6m/s
20:00
- 0% 0% 0% 75% 11° 0% 24135m 6m/s
21:00
- 5% 0% 0% 77% 2.4° 5% 24134m 5.7m/s
22:00
- 5% 0% 0% 78% -5.6° 5% 24135m 6.2m/s
23:00
- 5% 0% 0% 80% -12° 5% 24134m 7m/s
Tue, Jul 21 Sunrise 05:36 Sunset 21:21
24:00
- 0% 0% 0% 80% -17° 0% 24134m 7.5m/s
01:00
- 4% 0% 0% 79% -19° 4% 24135m 6.8m/s
02:00
- 1% 0% 0% 79% -19° 1% 24134m 7.3m/s
03:00
- 0% 0% 0% 80% -17° 0% 24134m 7.3m/s
04:00
- 0% 0% 0% 80% -12° 0% 24135m 6.9m/s
05:00
- 0% 0% 0% 81% -5.5° 0% 24134m 6.3m/s
06:00
- 0% 0% 0% 82% 2.6° 0% 24135m 5.5m/s
07:00
- 0% 0% 0% 82% 11° 0% 24135m 4.6m/s
08:00
- 0% 0% 0% 82% 20° 0% 24135m 3.3m/s
09:00
- 0% 0% 0% 80% 30° 0% 24134m 3.2m/s
10:00
- 0% 0% 0% 78% 39° 0% 24135m 2.7m/s
11:00
- 0% 0% 0% 76% 48° 0% 24135m 2.1m/s
12:00
- 0% 0% 0% 74% 55° 0% 24134m 1.8m/s
13:00
- 0% 0% 0% 73% 60° 0% 24134m 1.6m/s
14:00
- 0% 0% 0% 71% 60° 0% 24134m 2.1m/s
15:00
- 0% 0% 0% 71% 55° 0% 24134m 2.2m/s
16:00
- 0% 0% 0% 72% 48° 0% 24134m 2.2m/s
17:00
- 0% 0% 0% 73% 39° 0% 24135m 3.2m/s
18:00
- 0% 0% 0% 74% 30° 0% 24134m 4.9m/s
19:00
- 0% 0% 0% 78% 20° 0% 24134m 6.5m/s
20:00
- 31% 0% 0% 80% 11° 31% 24134m 6.4m/s
21:00
- 62% 0% 0% 82% 2.3° 62% 24135m 6.3m/s
22:00
- 94% 0% 0% 84% -5.8° 94% 24135m 6.3m/s
23:00
- 64% 0% 0% 82% -12° 64% 24135m 6.9m/s
Wed, Jul 22 Sunrise 05:37 Sunset 21:20
24:00
- 35% 0% 0% 80% -17° 35% 24135m 7.5m/s
01:00
- 6% 0% 0% 79% -19° 6% 24135m 8.1m/s
02:00
- 38% 0% 0% 75% -19° 38% 24135m 7.9m/s
03:00
- 69% 0% 0% 71% -17° 69% 24135m 7.7m/s
04:00
- 100% 0% 0% 66% -12° 100% 24135m 7.5m/s
05:00
- 100% 0% 0% 67% -5.6° 100% 24135m 7.7m/s
06:00
- 100% 0% 0% 67% 2.4° 100% 24135m 7.8m/s
07:00
- 100% 0% 0% 68% 11° 100% 24135m 8m/s
08:00
- 100% 0% 32% 70% 20° 100% 24135m 8.3m/s
09:00
- 100% 0% 64% 73% 30° 100% 24135m 8.5m/s
10:00
- 100% 0% 96% 76% 39° 100% 24135m 8.8m/s
11:00
- 96% 0% 65% 78% 48° 96% 24135m 8.8m/s
12:00
- 91% 0% 35% 79% 55° 91% 24135m 8.7m/s
13:00
- 87% 0% 5% 80% 60° 87% 24135m 8.6m/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

Get Notified of Opportunities

Create your own custom alerts for this location and more.

Create Free Account