Moonlight Forecast for Big Bend, US Southwest
Big Bend frames the Chisos Mountains, Chihuahuan Desert and Rio Grande canyons in broad layers, with spring wildflowers appearing in favorable years.
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
How this forecast is evaluated
See which weather signals PhotoWeather uses to identify Moonlight conditions across US Southwest. The requirements and hourly values below show how those signals apply at Big Bend.
Explore Moonlight conditions across US Southwest →Recorded match history
Completed PhotoWeather forecast matches recorded for this exact rule at Big Bend during the last 365 days.
00:00 local time, shared by 26 of 88 matches recorded in the last 365 days.
March, with 20 of 88 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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95-hour requirements breakdown
When available, the detailed table below covers only the stated 95-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.
Time America/Denver | Day/Night Period Night | Moon Altitude ≥ 15.0° | Moon Illumination ≥ 60.0% | Total Cloud Coverage ≤ 40.0% | Visibility ≥ 8000.0m | Precipitation Chance ≤ 15.0% |
|---|---|---|---|---|---|---|
| Sat, Aug 22 | ||||||
| 13:00 | ✕ | -35° | 72% | 0% | 24135m | 0% |
| 14:00 | ✕ | -23° | 72% | 0% | 24135m | 0% |
| 15:00 | ✕ | -11° | 72% | 0.5% | 24135m | 0% |
| 16:00 | ✕ | -0.23° | 72% | 0.4% | 24134m | 0% |
| 17:00 | ✕ | 10° | 72% | 2.7% | 24135m | 0% |
| 18:00 | ✕ | 19° | 80% | 2.9% | 24135m | 0% |
| 19:00 | ✓ | 26° | 80% | 0.5% | 24134m | 0% |
| 20:00 | ✓ | 31° | 80% | 0.5% | 24134m | 0% |
| 21:00 | ✓ | 33° | 80% | 0% | 24134m | 0% |
| 22:00 | ✓ | 31° | 80% | 0% | 24134m | 0% |
| 23:00 | ✓ | 27° | 80% | 0% | 24135m | 0% |
| Sun, Aug 23 | ||||||
| 24:00 | ✓ | 20° | 80% | 0% | 24134m | 0% |
| 01:00 | ✓ | 11° | 80% | 0% | 24135m | 0% |
| 02:00 | ✓ | 0.76° | 80% | 0% | 24134m | 0% |
| 03:00 | ✓ | -10° | 80% | 0% | 24134m | 0% |
| 04:00 | ✓ | -22° | 80% | 64% | 24134m | 0% |
| 05:00 | ✓ | -34° | 80% | 0% | 24134m | 0% |
| 06:00 | ✓ | -46° | 80% | 0% | 24134m | 0% |
| 07:00 | ✕ | -59° | 80% | 0% | 24134m | 0% |
| 08:00 | ✕ | -71° | 80% | 0% | 24135m | 0% |
| 09:00 | ✕ | -84° | 80% | 0% | 24135m | 0% |
| 10:00 | ✕ | -83° | 80% | 0% | 24135m | 0% |
| 11:00 | ✕ | -70° | 80% | 0% | 24134m | 0% |
| 12:00 | ✕ | -58° | 80% | 0% | 24134m | 0% |
| 13:00 | ✕ | -45° | 80% | 0% | 24135m | 0% |
| 14:00 | ✕ | -33° | 80% | 0% | 24135m | 0% |
| 15:00 | ✕ | -21° | 80% | 0% | 24135m | 0% |
| 16:00 | ✕ | -9° | 80% | 0% | 24135m | 0% |
| 17:00 | ✕ | 2.1° | 80% | 0.1% | 24134m | 0% |
| 18:00 | ✕ | 12° | 87% | 2.9% | 24135m | 0% |
| 19:00 | ✓ | 21° | 87% | 7.3% | 24135m | 0% |
| 20:00 | ✓ | 28° | 87% | 7.9% | 24134m | 0% |
| 21:00 | ✓ | 33° | 87% | 0% | 24134m | 0% |
| 22:00 | ✓ | 34° | 87% | 0% | 24134m | 0% |
| 23:00 | ✓ | 32° | 87% | 0% | 24134m | 0% |
| Mon, Aug 24 | ||||||
| 24:00 | ✓ | 27° | 87% | 0.5% | 24135m | 0% |
| 01:00 | ✓ | 20° | 87% | 4% | 24134m | 0% |
| 02:00 | ✓ | 11° | 87% | 5% | 24134m | 0% |
| 03:00 | ✓ | 0.11° | 87% | 12% | 24135m | 0% |
| 04:00 | ✓ | -11° | 87% | 5% | 24134m | 0% |
| 05:00 | ✓ | -23° | 87% | 0% | 24134m | 0% |
| 06:00 | ✓ | -35° | 87% | 0% | 24135m | 0% |
| 07:00 | ✕ | -48° | 87% | 0% | 24135m | 0% |
| 08:00 | ✕ | -60° | 87% | 0% | 24134m | 0% |
| 09:00 | ✕ | -73° | 87% | 0% | 24135m | 0% |
| 10:00 | ✕ | -84° | 87% | 0% | 24134m | 0% |
| 11:00 | ✕ | -80° | 87% | 0% | 24135m | 0% |
| 12:00 | ✕ | -68° | 87% | 0.9% | 24135m | 0% |
| 13:00 | ✕ | -55° | 87% | 4.9% | 24134m | 0% |
| 14:00 | ✕ | -42° | 87% | 5% | 24135m | 0% |
| 15:00 | ✕ | -30° | 87% | 5% | 24135m | 0% |
| 16:00 | ✕ | -18° | 87% | 2.7% | 24134m | 0% |
| 17:00 | ✕ | -5.8° | 87% | 15% | 24135m | 0% |
| 18:00 | ✕ | 5.5° | 93% | 77% | 24135m | 0% |
| 19:00 | ✓ | 16° | 93% | 100% | 24134m | 0% |
| 20:00 | ✓ | 25° | 93% | 0.3% | 24134m | 0% |
| 21:00 | ✓ | 32° | 93% | 0% | 24134m | 0% |
| 22:00 | ✓ | 36° | 93% | 0% | 24134m | 0% |
| 23:00 | ✓ | 37° | 93% | 0% | 24135m | 0% |
| Tue, Aug 25 | ||||||
| 24:00 | ✓ | 35° | 93% | 0% | 24134m | 0% |
| 01:00 | ✓ | 29° | 93% | 4.9% | 24135m | 0% |
| 02:00 | ✓ | 20° | 93% | 5% | 24134m | 0% |
| 03:00 | ✓ | 11° | 93% | 4.6% | 24134m | 0% |
| 04:00 | ✓ | -0.23° | 93% | 0% | 24135m | 0% |
| 05:00 | ✓ | -12° | 93% | 0% | 24135m | 0% |
| 06:00 | ✓ | -24° | 93% | 0% | 24134m | 0% |
| 07:00 | ✕ | -36° | 93% | 0% | 24134m | 0% |
| 08:00 | ✕ | -49° | 93% | 0% | 24135m | 0% |
| 09:00 | ✕ | -61° | 93% | 0% | 24134m | 0% |
| 10:00 | ✕ | -74° | 93% | 0% | 24135m | 0% |
| 11:00 | ✕ | -82° | 93% | 0% | 24135m | 0% |
| 12:00 | ✕ | -76° | 93% | 0% | 24134m | 0% |
| 13:00 | ✕ | -64° | 93% | 0% | 24135m | 0% |
| 14:00 | ✕ | -51° | 93% | 0% | 24135m | 0% |
| 15:00 | ✕ | -39° | 93% | 0% | 24135m | 0% |
| 16:00 | ✕ | -26° | 93% | 3.1% | 24135m | 0% |
| 17:00 | ✕ | -14° | 93% | 5% | 24135m | 0% |
| 18:00 | ✕ | -1.5° | 97% | 4.9% | 24135m | 0% |
| 19:00 | ✓ | 9.9° | 97% | 3.3% | 24135m | 0% |
| 20:00 | ✓ | 21° | 97% | 1.6% | 24135m | 0% |
| 21:00 | ✓ | 30° | 97% | 0% | 24135m | 0% |
| 22:00 | ✓ | 37° | 97% | 0% | 24135m | 0% |
| 23:00 | ✓ | 41° | 97% | 0% | 24135m | 0% |
| Wed, Aug 26 | ||||||
| 24:00 | ✓ | 41° | 97% | 0% | 24135m | 0% |
| 01:00 | ✓ | 37° | 97% | 0% | 24135m | 0% |
| 02:00 | ✓ | 30° | 97% | 0% | 24135m | 0% |
| 03:00 | ✓ | 21° | 97% | 0% | 24135m | 0% |
| 04:00 | ✓ | 11° | 97% | 0% | 24135m | 0% |
| 05:00 | ✓ | -0.5° | 97% | 0% | 24135m | 0% |
| 06:00 | ✓ | -13° | 97% | 0% | 24135m | 0% |
| 07:00 | ✕ | -25° | 97% | 0% | 24135m | 0% |
| 08:00 | ✕ | -37° | 97% | 0% | 24135m | 0% |
| 09:00 | ✕ | -50° | 97% | 0% | 24135m | 0% |
| 10:00 | ✕ | -62° | 97% | 0% | 24135m | 0% |
| 11:00 | ✕ | -73° | 97% | 0% | 24135m | 0% |
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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