Sun and Skin on Location
A location shoot begins with a reading of the light. Looking after the people who spend the day in it asks for another kind of attention: to the ultraviolet radiation that never appears in the frame.
The Light You Cannot See
Consider a portrait session beside a shaded doorway, a crew waiting on a beach, or a camera being set up among dunes. The photographer has a composition to consider; everyone has the conditions of the location to share. A useful plan makes space for both. The World Health Organization's ultraviolet radiation fact sheet explains that UV can neither be seen nor felt. The appearance of the scene therefore cannot tell the whole story of exposure.
WHO lists sunburn and DNA damage among UV's acute effects, and premature skin ageing among its longer-term effects. It also notes that darker-skinned people can develop skin cancers, although fair-skinned people burn more readily and face higher skin-cancer risk. Eye protection matters for everyone. On location, attention to UV belongs to the whole team, whatever anyone's role or skin tone.
What Raises UV on a Shoot
WHO identifies several influences on solar UV. Levels rise as the sun climbs higher, vary with the time of day and year, and are higher nearer the equator. They also increase with altitude, where thinner air absorbs less UV. For a proposed mountain location, elevation belongs alongside the practical questions about access and where the team can wait.
Clouds and scenery deserve attention too. WHO says UV is highest under cloudless skies but can remain high with cloud cover; water, sand and fresh snow increase levels through reflection. A beach, dune or snow-covered setting therefore deserves consideration beyond its place in the composition. An overcast sky is no reason to set the UV question aside. These factors describe the setting in which everyone works, including the assistant standing outside the camera's view.
Golden Hour and the Shadow Rule
The long shadows familiar from an early or late location session offer a useful clue. The U.S. Environmental Protection Agency's shadow rule says exposure is likely to be lower when your shadow is taller than you, as in early morning and late afternoon. A shadow shorter than you, around midday, indicates higher UV exposure. The agency advises seeking shade and protecting skin and eyes.
That makes the golden-hour habit a useful starting point for discussion about timing, with the qualification that the rule says lower exposure, not an absence of UV. WHO's UV-index guidance places the daily maximum within the four-hour period around solar noon. For a shoot with preparation, waiting and packing still to do, consider the whole outdoor schedule when thinking about the light.
Reading the UV Index
The WHO explanation of the UV index describes a scale running upward from zero: higher values mean greater potential for skin and eye damage, with less time for harm to occur. The daily value reports the maximum, while levels change through the day. Solar noon depends on location and daylight saving time, so the clock alone is an incomplete guide.
WHO describes 0–2 as the lowest band. At 3–7 it advises shade during midday hours, together with a shirt, sunscreen and hat; at 8 and above it advises avoiding being outside at midday. EPA's guidance for 3–7 extends the shade message from late morning through mid-afternoon. Applied to a shoot, those recommendations give the schedule a practical question: which parts of the work can take place in shade, or at another time?
What Years of Sun Do to Skin
A 2025 review by Kaltchenko and Chien in the American Journal of Clinical Dermatology describes photoaging as cumulative damage from chronic exposure to sunlight, encompassing ultraviolet, visible and infrared wavelengths. The authors discuss changes in skin texture and pigmentation, wrinkles and structural changes over time. Their subject is repeated exposure across years, a longer view than the light available for a single session.
The review also stresses variation by skin type. Pigment changes feature more prominently in skin of color, while wrinkles and changes in elastic tissue feature more prominently in white skin. These are patterns discussed in a review, with considerable importance placed on individual skin type. The review's emphasis on skin type is a reminder to discuss exposure with respect for individual differences, while keeping the practical arrangements for the whole team in view.
Outdoor Work Is Work
A 2023 WHO/ILO analysis in Environment International estimated that 1.6 billion workers were occupationally exposed to solar UV in 2019, equivalent to 28.4% of the working-age population. It drew on evidence of higher non-melanoma skin-cancer risk among people exposed through outdoor work. These are global estimates across occupations; they do not establish the risk of a particular photographic assignment.
For a location team, their relevance is the attention they give to working conditions. Include the photographer, model, stylist and assistants in the conversation about time outdoors. A plan for shade should account for the person waiting with equipment as well as the person ready for the next frame. Everyone's part in the day deserves consideration.
Protection Between Takes
The WHO recommendations for sun protection begin with limiting time in midday sun, seeking shade and wearing protective clothing. They include a broad-brimmed hat for the eyes, face, ears and neck, and wraparound sunglasses providing 99–100% UV-A and UV-B protection. WHO recommends broad-spectrum sunscreen for skin that clothing cannot cover, while placing shade and clothing ahead of sunscreen.
WHO also cautions against using sunscreen to extend time in the sun. For location work, give that advice a place in preparation and between takes: shade for waiting, protective clothing within reach, and time to step away from midday sun. Treat those arrangements as ordinary parts of the shared working day. The photograph asks for attention to light; the people making it deserve the same care.