Conditions on this page are calculated for . The live tool above re-runs the same model against the latest forecast for today's date.
Counter-intuitively, full moon is rarely the best choice for detail — the lighting is flat and craters lose contrast. The best phases are first-quarter through gibbous (50–80% illumination), when shadows along the terminator line carve out crater rims and mountain ranges in 3D. For pure composition with landmarks, full moon still wins because the disc is bright enough to balance city or twilight foregrounds. For earthshine — the faint glow on the dark side of a crescent — choose a 5–25% slim crescent. A 0–100 score from a pure function with eight inputs: moon altitude, illumination percentage, cloud cover, humidity (transparency proxy), wind, temperature, Bortle dark-sky class and next-hour rain. The score starts at 60 and adjusts up or down depending on whether each factor helps or hurts the shot. Cloud cover and below-horizon moons can crash the score below 20 alone. Optimal phase, dark sky and dry air can push the score above 90. Because a moon you can't see is a moon you can't photograph. Above 60% cloud cover, the chance of even a 5-minute clear gap drops below 30% in most climates. The MoonShot Score weights cloud cover as the heaviest variable — a single 85% cloud reading takes –32 points off the score, more than any other input. For a frame-filling disc portrait, 600 mm minimum (800 mm ideal). For landmark composition (moon + skyline / mountain), 200–400 mm gives the telephoto compression that makes the disc look huge. For wide environmental shots with foreground, 50–135 mm works. The Decision Card above recommends a focal length tonight based on altitude and phase. Use PhotoPills or Sun Surveyor to calculate the exact moonrise azimuth and altitude weeks ahead. Find a vantage point 1–5 km from the foreground subject (skyscraper, mountain, tower) so telephoto compression makes the moon appear large relative to the landmark. Arrive 90 minutes early, scout multiple compositions, and shoot a bracket sequence as the disc clears the horizon — it changes colour from deep orange to white over 20 minutes. Depends entirely on your latitude and climate. Dry climates (Atacama, Sahara, Mauna Kea) deliver 80–95 clear-night frequency year-round. Temperate climates (UK, Pacific Northwest, Japan) peak in autumn (Oct–Nov) when cold air pushes humidity below 50% and high-pressure ridges deliver clearest skies. Tropical climates have a clear dry season — typically Nov–Apr in the southern hemisphere, Dec–Mar in the northern. For pure lunar disc shots — no. The moon is bright enough that light pollution barely affects detail. For moon + starfield context shots, yes — Bortle 1–3 sites (Atacama, Mauna Kea, NZ Dark Sky reserves) reveal the deep starfield around the disc that Bortle 7+ skies wash out entirely. The PlanMyMoonShoot wizard above scores Bortle as a factor. What forecast factor is the biggest predictor of a wasted moon-photography night? Cloud cover above 60% — full stop. Followed by humidity above 85% (dew on the front element ruins the shoot in 20 minutes), wind above 30 km/h (telephoto micro-shake), and below-horizon moon (often missed when shooters don't check moonrise times). The MoonShot Score weights all four heavily. Five things, in order: a sturdy tripod (3 kg+) with weight on the centre column; manual focus at 10× live-view on the terminator line (never autofocus); mirror lock-up (DSLR) or electronic shutter (mirrorless); 2-second self-timer or remote release; shutter speed of 1/500 s or faster to freeze atmospheric "seeing" turbulence. Crater sharpness is overwhelmingly a stability and atmospheric problem, not a lens problem. ISO 100–400 (the moon is bright — keep noise minimal). Aperture f/8–f/11 (most lenses are sharpest 2–3 stops down from wide-open). Shutter speed 1/250 s to 1/1000 s depending on focal length and atmospheric seeing. Start at ISO 200, f/8, 1/500 s on a 600 mm lens and adjust from there. The disc should look slightly over-exposed in live-view because the meter averages the dark sky around it. Not for normal moon photography — the moon moves 0.5° per 2 minutes, slow enough that 1/500 s shutter freezes it perfectly. A tracking mount only helps for very long exposures (5+ seconds) used in deep-sky stacking, which is irrelevant for the bright lunar disc.
Weather decisions in Moon Photography Decision Guide are rarely about whether it's "nice" — they're about matching what you want to do with the conditions that actually show up. A perfectly sunny day at 34 °C can be a bad day for hiking, a mild overcast morning can be ideal for portrait photography, and a low-cloud evening can be a spectacular night for full-moon shots. Snap Weather is built to answer decision questions like these directly, rather than making you interpret raw forecast numbers on your own.
This page pulls the current Open-Meteo forecast for Moon Photography Decision Guide and reframes it around one specific decision. If the conditions clearly support the plan, we say so; if they don't, we say that too and — where possible — suggest the next date in the outlook window that does. Recommendations respect timezone, sunrise/sunset, forecast uncertainty and dealbreaker thresholds (heavy rain, dangerous wind, thick fog, hazardous UV), so a warning stays a warning even when everything else looks pleasant.
The decision score you see on this page is a weighted composite of the factors most important to the question in the page title. Weights differ by decision type, and every factor has a "dealbreaker" cap: if a single factor is dangerous or ruins the plan, the total score is pulled down regardless of the other factors.
Because dealbreaker caps apply, a "poor" score is not simply a low weather score — it means at least one factor makes the plan meaningfully worse or unsafe. That's the difference between a decision engine and a raw weather feed.
The table below summarises the typical weather pattern travellers can expect across the year in Moon Photography Decision Guide. It's a long-term climatological reference — the live tool at the top of this page overlays the current 7-to-14-day forecast on top of these baselines, so any anomalies (a cold spring, a wet summer, an unusual heatwave) show up immediately.
| Month | Season | Typical pattern | Traveller notes |
|---|---|---|---|
| January | Mid-winter (N) / peak-summer (S) | Coldest and shortest days in the northern hemisphere; warmest in the southern hemisphere. | Best value in most Europe/N-America; peak season in Australia/S-America/S-Africa. |
| February | Late-winter (N) / late-summer (S) | Cold and often driest month in the north; warm and stable in the south. | Ski season is at its most reliable in the northern hemisphere. |
| March | Early-spring (N) / early-autumn (S) | Rapidly lengthening days in the north; cooling but still pleasant in the south. | Shoulder pricing across most tourist cities. |
| April | Mid-spring (N) / mid-autumn (S) | Warming with unstable showers in the north; mild and dry in the south. | Cherry blossom windows across Europe, N America and East Asia. |
| May | Late-spring (N) / late-autumn (S) | Warm days, cool evenings in the north; first frosts possible in the south. | Widely considered the best value month for European city trips. |
| June | Early-summer (N) / early-winter (S) | Long days, warming quickly in the north; short days and cold in the south. | Solstice window; peak golden hour length in far-north cities. |
| July | Peak-summer (N) / mid-winter (S) | Warmest month across most of the northern hemisphere; ski season in the south. | Heatwave risk in southern Europe and inland US. |
| August | Late-summer (N) / late-winter (S) | Warm and often humid in the north; last month of ski season in the south. | Monsoon peak in South and Southeast Asia. |
| September | Early-autumn (N) / early-spring (S) | Cooling, drier and more stable in the north; warming in the south. | Widely rated the best month for Mediterranean travel. |
| October | Mid-autumn (N) / mid-spring (S) | Foliage peak in temperate north; blossom season starting in the south. | Photography prime time; long golden-hour windows. |
| November | Late-autumn (N) / late-spring (S) | First cold spells in the north; warming rapidly in the south. | Off-season pricing across most Europe/N America. |
| December | Early-winter (N) / early-summer (S) | Shortest days and often the wettest month in maritime climates; long warm days in the south. | Solstice window; ski openings across the northern hemisphere. |
Season labels use the northern-hemisphere calendar for consistency. If Moon Photography Decision Guide sits south of the equator, the live tool at the top of the page inverts these automatically using the location's coordinates.
Snap Weather pulls forecast data every hour from Open-Meteo and combines it with high-precision solar and lunar calculations done in Moon Photography Decision Guide's local timezone. We translate raw numbers into a direct answer to the question in the page title. Every score is capped so a single dealbreaker — heavy rain, dangerous wind, thick fog, hazardous UV — cannot be hidden by otherwise pleasant averages, and every recommendation includes a plain-English explanation of why we picked what we picked.
Uncertainty is stated rather than hidden. Every day carries a confidence band that falls with forecast lead time and with how variable the forecast itself is: days one to three are normally safe to plan around, days four to six describe a direction of travel, and anything beyond a week should shape intent rather than a booking. This confidence figure is a transparent, documented function of lead time and forecast variability — it is not a measurement of ensemble member spread, and we do not present it as one.
The methodology is documented in full on our methodology page, and the scoring code for each decision type — travel days, photography, weddings, activities, ski, running, cycling — is written in a shared, activity-aware library so recommendations stay consistent across every page on the site.
All times on this page render in the local timezone of Moon Photography Decision Guide, not your device timezone, so a sunrise time you read from London still means "sunrise as seen from Moon Photography Decision Guide". Weather data comes from Open-Meteo's hourly forecast API, which serves a blend of leading global models (ECMWF, GFS, ICON) at roughly 11 km resolution. Astronomical data — sunrise, sunset, twilight, moon phase, illumination and moon altitude — comes from the Sunrise-Sunset API with Open-Meteo as a resilient fallback, and every calculation is done in the target location's timezone rather than the browser's, so daylight-saving transitions, high-latitude twilight and equatorial no-twilight days all render correctly.
We publish a last-updated timestamp on the live page so you can see exactly how fresh the numbers are, and we display forecast confidence next to each day so you know when it's safe to lock in plans and when to check back after the next model run. The interactive tool at the top of this page is fully client-side — no accounts, no paywall, no email required — and it works on mobile and desktop equally well.
Weather data refreshes hourly from Open-Meteo. Solar and lunar timings are re-computed on every page load, so a page you refresh at midday and again at 6 pm can show meaningfully different scores if a model run has arrived in between.
Yes. Every forecast, decision score, month-by-month guide and photography timing on Snap Weather is free, no account required and no data captured beyond anonymous analytics. If it saves you a trip or a shoot, telling a friend is the only "payment" we ask for.
We use Open-Meteo's forecast API, which serves a blend of leading global models (ECMWF, GFS, ICON) at roughly 11 km resolution. This is the same model family used by many professional planning tools, exposed here in a decision-friendly way.
Yes — all sunrise, sunset, twilight and moon times are calculated in the destination's local timezone, so daylight-saving transitions are handled automatically. You should never need to add or subtract an hour manually.
Trust decays with time. Days 1–3 are typically very reliable, days 4–7 are directionally reliable (good/bad but not exact), and days 8–14 give you a broad sense of the pattern. That's why we surface confidence alongside every score.
Snap Weather is a weather decision engine. You can search any of the 11M+ locations in the Open-Meteo geocoding database, and we publish in-depth pages for 350+ curated destinations. If you're on the live site, the interactive forecast for Moon Photography Decision Guide loads automatically — no reload required.