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Rule Blue Hour

Blue Hour Forecast for Riomaggiore, Cinque Terre

Riomaggiore, Liguria, Italy

Tall painted houses line a steep main street and narrow marina, enclosed by dark rock walls and terraced coastal slopes.

4 matching opportunities in the 14-day forecast.

Hourly forecast scores

Forecast valid from Oct 7, 2026, 11:00 PM UTC (one hour; not an observation)
Cloud Cover100%
Moon Illumination12%
Moon Altitude-33.3°

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Rome
blue-hour weather icon
First upcoming window
Good Blue Hour (clear) at Sunset
Riomaggiore
Sat, Oct 10 · 19:04–19:15 · 1h window
Medium confidence
51%
🌉Blue Hour Quality79%
Cloud Cover: 4%
Moon Illumination: 0%
Moon Altitude: -6.6°
blue-hour weather icon
Good Blue Hour (clear) at Sunset
Riomaggiore
Mon, Oct 12 · 19:00–19:11
🌉Blue Hour Quality:74.1%
Low
blue-hour weather icon
Good Blue Hour at Sunrise
Riomaggiore
Tue, Oct 13 · 07:03–07:14
🌉Blue Hour Quality:71.5%
Low
blue-hour weather icon
Good Blue Hour at Dusk
Riomaggiore
Tue, Oct 13 · 19:00–19:10
🌉Blue Hour Quality:72%
Medium

71-hour requirements breakdown

When available, this detailed table covers only the stated 71-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the full 14-day forecast period, so this table does not explain that entire period. Times shown in Europe/Rome.

Requirements breakdown is temporarily unavailable or expired. This does not mean no opportunities.

Supporting forecast inputs

Additional hourly values for interpreting the forecast and any derived scores. See the separate requirements breakdown for rule logic; missing values are unavailable.

Forecast time (Europe/Rome)Blue HourHigh CloudsLow CloudsMid-Level CloudsRelative HumiditySolar ElevationTotal Cloud CoverageVisibilityWind Speed
Thu, Oct 8, 2026Sunrise · Sunset
NightUnavailable100%100%100%96%-52°100%21760m4.6m/s
NightUnavailable100%89%100%98%-50°100%19840m4m/s
NightUnavailable100%93%96%97%-45°100%18940m3.4m/s
NightUnavailable100%84%94%96%-36°100%18100m3.5m/s
NightUnavailable100%91%37%97%-27°100%7720m3.4m/s
NightUnavailable100%92%27%97%-16°100%8340m2.8m/s
NightUnavailable100%90%34%98%-5.6°100%12960m2.2m/s
Unavailable100%88%20%98%5.2°100%17560m2.6m/s
Unavailable61%93%10%95%15°97%1160m3.2m/s
Unavailable0%93%39%93%24°96%13440m4.1m/s
Unavailable0%89%32%93%32°94%14000m4.1m/s
Unavailable0%88%40%90%38°94%17860m4m/s
Unavailable31%85%42%87%40°92%23540m3.7m/s
Unavailable12%76%32%83%39°86%28260m3.8m/s
Unavailable0%82%19%81%34°89%30360m2.8m/s
Unavailable0%89%32%79%27°94%32440m3.1m/s
Unavailable0%90%17%79%18°95%32700m3m/s
Unavailable0%84%7%79%8°89%32660m2.4m/s
NightUnavailable0%94%51%78%-2.6°97%33600m2.6m/s
NightUnavailable0%80%59%77%-13°85%34240m3.7m/s
NightUnavailable1%86%38%78%-24°93%33540m3.9m/s
NightUnavailable0%77%48%88%-34°87%24100m3.8m/s
NightUnavailable0%83%39%78%-43°92%33680m3.3m/s
Fri, Oct 9, 2026Sunrise · Sunset
NightUnavailable0%71%24%68%-49°83%38800m3.6m/s
NightUnavailable0%84%50%83%-52°93%29940m4.2m/s
NightUnavailable0%74%4%71%-50°76%37740m3.4m/s
NightUnavailable0%74%14%73%-45°83%36700m2.9m/s
NightUnavailable0%66%3%76%-37°68%35580m3m/s
NightUnavailable0%69%2%77%-27°70%35120m3m/s
NightUnavailable0%68%48%74%-17°79%36660m2.8m/s
NightUnavailable0%85%3%74%-5.8°87%36520m1.7m/s
Unavailable0%59%0%73%4.9°59%36960m1.1m/s
Unavailable0%64%0%71%15°64%37600m1.5m/s
Unavailable0%45%63%69%24°82%38140m0.92m/s
Unavailable0%40%90%68%32°96%38420m0.9m/s
Unavailable0%18%58%68%37°69%38140m1.9m/s
Unavailable0%8%66%67%40°71%38100m2.6m/s
Unavailable0%5%30%68%38°33%37560m3.5m/s
Unavailable0%32%33%68%34°49%37460m3.2m/s
Unavailable0%48%33%68%26°60%37580m2.7m/s
Unavailable0%59%100%70%18°100%37340m0.1m/s
Unavailable0%11%67%68%7.7°70%37690m2.7m/s
NightUnavailable0%28%31%69%-2.9°44%36280m2.2m/s
NightUnavailable0%32%52%73%-14°63%30055m1.9m/s
NightUnavailable0%42%97%79%-24°99%21340m1.1m/s
NightUnavailable0%42%78%81%-34°90%21520m1m/s
NightUnavailable0%50%74%86%-43°88%21420m0.42m/s
Sat, Oct 10, 2026Sunrise · Sunset
NightUnavailable59%54%82%90%-50°97%23480m1.2m/s
NightUnavailable59%50%76%89%-52°96%22760m0.92m/s
NightUnavailable0%70%71%88%-51°89%21780m0.81m/s
NightUnavailable2%73%62%89%-45°87%22100m0.6m/s
NightUnavailable39%59%57%88%-37°87%20240m0.54m/s
NightUnavailable99%48%71%88%-27°100%16100m0.9m/s
NightUnavailable4%51%71%85%-17°88%15000m1.2m/s
NightUnavailable0%38%60%87%-6°77%15380m0.91m/s
Unavailable0%33%39%91%4.7°56%20460m1.2m/s
Unavailable0%21%45%88%15°56%26920m0.8m/s
Unavailable100%11%46%78%24°100%33820m0.1m/s
Unavailable100%37%61%76%32°100%35760m0.71m/s
Unavailable100%52%44%75%37°100%36500m1.2m/s
Unavailable100%59%57%76%39°100%33160m2.2m/s
Unavailable100%39%28%75%38°100%30700m2.2m/s
Unavailable100%37%34%72%33°100%33620m2.1m/s
Unavailable100%14%22%72%26°100%35080m2.2m/s
Unavailable100%0%8%71%17°100%34480m2.3m/s
Unavailable0%0%0%71%7.3°0%33800m2m/s
NightUnavailable0%4%0%75%-3.2°4%31060m1.8m/s
NightUnavailable0%10%0%80%-14°10%27840m1.2m/s
NightUnavailable0%3%0%85%-25°3%27300m1.6m/s
NightUnavailable0%0%0%85%-35°0%25380m1.6m/s
NightUnavailable0%0%0%90%-43°0%20880m1.5m/s
Sun, Oct 11, 2026Sunrise · Sunset
NightUnavailable0%0%0%92%-50°0%21700m1.6m/s

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Blue Hour conditions across Cinque Terre. The requirements and hourly values above show how those signals apply at Riomaggiore.

Explore Blue Hour conditions across Cinque Terre →

Recorded match history

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

Last 30 days
36
recorded matching windows · 79% average confidence
Last 90 days
115
recorded matching windows · 77% average confidence
Last 365 days
236
recorded matching windows · 77% average confidence
Most frequent recorded start hour

05:00 local time, shared by 69 of 236 matches recorded in the last 365 days.

Most represented month

September, with 41 of 236 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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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.

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