Yes — 13 August 2026 scores 70/100 for time outdoors in London, United Kingdom (32 °C, 10 km/h wind, 0 % rain chance and UV 5), which is a clear go.
London, United Kingdom is the default reference location shown before you pick your own. Search any city above and the same scoring model re-runs for that location and today's date.
Conditions on this page are calculated for . The live tool above re-runs the same model against the latest forecast for today's date.
Most trips are not ruined by rain — they are ruined by choosing the wrong day. Snap Weather scores every day 0-100 for travel, hiking, the beach, photography and more, then gives you a direct Go, Wait or Skip verdict for any destination instead of a wall of numbers.
Weather decisions in your destination 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 your destination 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.
Snap Weather pulls forecast data every hour from Open-Meteo and combines it with high-precision solar and lunar calculations done in the destination'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 the selected location, not your device timezone, so a sunrise time you read from London still means "sunrise as seen from the destination". 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 this page loads automatically — no reload required.