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Rule Fire Sky

Fire Sky Forecast for Half Moon Bay, California Coast

Half Moon Bay, California, United States

Half Moon Bay offers eroded bluffs, harbour breakwaters, broad beaches, and the distant Mavericks reef under fog, winter swell, and post-front light.

0 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)
Fiery Red Sky Potential
0%
Low Cloud Cover13%
Mid Cloud Cover0%
High Cloud Cover0%
Aerosol Optical Depth0.1
Sun Elevation29.4°

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in America/Los_Angeles

No matching opportunities in this 14-day forecast

See which requirements block the most forecast hours below.

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 America/Los_Angeles.

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 (America/Los_Angeles)Aerosol Optical Depth (550nm)Clear Sky Probability (Ensemble)Cloud Cover Uncertainty (Ensemble)Dust AOD (550nm)Golden HourHigh CloudsLow CloudsMid-Level CloudsRH @ 700 hPaSmoke AOD (550nm)Solar ElevationSunshine Duration
Wed, Oct 7, 2026Sunrise · Sunset
0.08100%0%0.008Unavailable0%13%0%37%0.0229°3600seconds
0.08100%0%0.008Unavailable0%51%0%37%0.0219°3600seconds
0.09100%0%0.008Unavailable0%71%0%37%0.027.8°0seconds
Night0.09100%0%0.008Unavailable0%100%0%38%0.02-4°0seconds
Night0.09100%0%0.008Unavailable0%100%0%38%0.02-16°0seconds
Night0.09100%0%0.008Unavailable0%100%0%38%0.02-28°0seconds
Night0.09100%0%0.008Unavailable0%100%0%39%0.02-39°0seconds
Night0.09100%0%0.008Unavailable0%100%0%39%0.02-49°0seconds
Thu, Oct 8, 2026Sunrise · Sunset
Night0.1100%0%0.008Unavailable0%100%0%40%0.02-56°0seconds
Night0.1100%0%0.008Unavailable0%100%0%41%0.02-58°0seconds
Night0.1100%0%0.008Unavailable0%100%0%42%0.02-55°0seconds
Night0.1100%0%0.008Unavailable0%100%0%40%0.02-48°0seconds
Night0.11100%0%0.008Unavailable0%100%0%38%0.02-38°0seconds
Night0.11100%0%0.008Unavailable0%100%0%36%0.02-27°0seconds
Night0.11100%0%0.008Unavailable0%100%0%38%0.02-15°0seconds
Night0.11100%0%0.008Unavailable0%100%0%40%0.02-3°0seconds
0.11100%0%0.008Unavailable0%100%0%42%0.028.7°0seconds
0.11100%0%0.008Unavailable0%100%0%44%0.0220°0seconds
0.11100%0%0.008Unavailable0%92%0%46%0.0330°330seconds
0.11100%0%0.008Unavailable0%48%0%49%0.0339°3600seconds
0.11100%0%0.008Unavailable0%13%0%49%0.0344°3600seconds
0.11100%0%0.009Unavailable0%13%0%50%0.0346°3600seconds
0.11100%0%0.009Unavailable0%9%0%50%0.0344°3600seconds
0.11100%0%0.009Unavailable0%10%0%50%0.0238°3600seconds
0.1100%0%0.009Unavailable0%9%0%49%0.0229°3600seconds
0.1100%0%0.009Unavailable0%27%0%49%0.0219°3600seconds
Unavailable100%0%UnavailableUnavailable0%32%0%49%Unavailable7.5°3600seconds
NightUnavailable100%0%UnavailableUnavailable0%100%0%49%Unavailable-4.3°0seconds
NightUnavailable100%0%UnavailableUnavailable0%100%0%50%Unavailable-16°0seconds
NightUnavailable100%0%UnavailableUnavailable0%100%0%49%Unavailable-28°0seconds
NightUnavailable100%0%UnavailableUnavailable0%100%0%49%Unavailable-39°0seconds
NightUnavailable100%0%UnavailableUnavailable0%100%0%48%Unavailable-49°0seconds
Fri, Oct 9, 2026Sunrise · Sunset
NightUnavailable100%0%UnavailableUnavailable0%100%0%48%Unavailable-56°0seconds
NightUnavailable100%0%UnavailableUnavailable0%100%0%48%Unavailable-59°0seconds
NightUnavailable100%0%UnavailableUnavailable0%100%0%47%Unavailable-56°0seconds
NightUnavailable100%0%UnavailableUnavailable0%100%0%47%Unavailable-48°0seconds
NightUnavailable100%0%UnavailableUnavailable0%100%0%47%Unavailable-38°0seconds
NightUnavailable100%0%UnavailableUnavailable0%100%0%47%Unavailable-27°0seconds
NightUnavailable100%0%UnavailableUnavailable0%100%0%49%Unavailable-15°0seconds
NightUnavailable100%0%UnavailableUnavailable0%100%0%51%Unavailable-3.2°0seconds
Unavailable100%0%UnavailableUnavailable0%100%0%53%Unavailable8.5°0seconds
Unavailable100%0%UnavailableUnavailable0%75%0%53%Unavailable20°900seconds
Unavailable100%1%UnavailableUnavailable0%42%0%54%Unavailable30°3370seconds
Unavailable100%1%UnavailableUnavailable0%9%0%54%Unavailable38°3600seconds
Unavailable99%4%UnavailableUnavailable0%0%0%54%Unavailable44°3600seconds
Unavailable97%7%UnavailableUnavailable0%0%0%54%Unavailable46°3600seconds
Unavailable96%10%UnavailableUnavailable0%0%0%54%Unavailable44°3600seconds
Unavailable94%12%UnavailableUnavailable0%0%0%53%Unavailable37°3600seconds
Unavailable91%13%UnavailableUnavailable0%0%0%53%Unavailable29°3600seconds
Unavailable89%15%UnavailableUnavailable0%0%0%53%Unavailable18°3600seconds
Unavailable89%15%UnavailableUnavailable0%0%0%45%Unavailable7.2°3600seconds
NightUnavailable90%15%UnavailableUnavailable0%0%0%38%Unavailable-4.6°2138seconds
NightUnavailable90%15%UnavailableUnavailable0%83%0%30%Unavailable-17°0seconds
NightUnavailable92%13%UnavailableUnavailable0%100%0%24%Unavailable-28°0seconds
NightUnavailable95%11%UnavailableUnavailable0%100%0%18%Unavailable-39°0seconds
NightUnavailable97%9%UnavailableUnavailable0%100%0%12%Unavailable-49°0seconds
Sat, Oct 10, 2026Sunrise · Sunset
NightUnavailable97%8%UnavailableUnavailable0%100%0%14%Unavailable-57°0seconds
NightUnavailable98%8%UnavailableUnavailable0%93%0%15%Unavailable-59°0seconds
NightUnavailable98%7%UnavailableUnavailable0%91%0%17%Unavailable-56°0seconds
NightUnavailable98%7%UnavailableUnavailable0%97%0%23%Unavailable-48°0seconds
NightUnavailable99%7%UnavailableUnavailable0%63%0%30%Unavailable-38°0seconds
NightUnavailable99%7%UnavailableUnavailable0%4%0%36%Unavailable-27°0seconds
NightUnavailable96%11%UnavailableUnavailable0%0%0%31%Unavailable-15°0seconds
NightUnavailable94%14%UnavailableUnavailable0%0%0%27%Unavailable-3.4°0seconds
Unavailable91%18%UnavailableUnavailable0%0%0%23%Unavailable8.3°2529seconds
Unavailable89%19%UnavailableUnavailable0%59%0%23%Unavailable19°3600seconds
Unavailable87%19%UnavailableUnavailable0%85%0%23%Unavailable30°3600seconds
Unavailable85%20%UnavailableUnavailable0%95%0%23%Unavailable38°3600seconds
Unavailable81%23%UnavailableUnavailable0%38%0%23%Unavailable44°3600seconds
Unavailable77%26%UnavailableUnavailable0%0%0%22%Unavailable46°3600seconds
Unavailable73%29%UnavailableUnavailable0%0%0%22%Unavailable43°3600seconds
Unavailable76%26%UnavailableUnavailable0%0%0%23%Unavailable37°3600seconds

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Fire Sky conditions across California Coast. The requirements and hourly values above show how those signals apply at Half Moon Bay.

Explore Fire Sky conditions across California Coast →

Recorded match history

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

Last 30 days
4
recorded matching windows · 65% average confidence
Last 90 days
13
recorded matching windows · 67% average confidence
Last 365 days
25
recorded matching windows · 68% average confidence
Most frequent recorded start hour

06:00 local time, shared by 18 of 25 matches recorded in the last 365 days.

Most represented month

July, with 8 of 25 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.

How opportunities work → Weather data sources →

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