# Surfers SPF

> A coastal field manual on managing sun exposure in surf and open water conditions. Published by Northbank Media in British English. Treats a long session as hours of continuous exposure with reflection off water, wind, salt and no chance to reapply, and therefore treats the plan made before entry as the unit of decision.

## How this publication works

- No brand is named and no product is recommended anywhere on the site.
- No affiliate links, referral links or paid links of any kind, on any page.
- No invented statistics, studies or protection percentages, and no UV index reading attached to a named place and date.
- Clinical questions stop here and go to the NHS, a GP and the British Association of Dermatologists.
- Revenue is a paid alphabetical register of surf schools, clubs, water safety training providers and instructors, labelled as paid and explicitly not a safety endorsement, plus a labelled newsletter sponsor line with a published rate card.
- We have assessed nobody. The register is currently empty and says so.

## Sections

### Reading the day: https://surfersspf.com/reading-the-day
How to read a forecast for exposure rather than for swell. What the UV index is, why cloud and cold mislead almost everybody, and what actually changes when you move a session by two hours.

- [What the UV index actually measures, and how to read it before a session](https://surfersspf.com/reading-the-day/how-the-uv-index-works): The UV index is a forecast of how strong the sun's ultraviolet radiation will be at ground level, expressed on an open scale grouped into published bands from low to extreme. It describes strength at 
- [Why cloud and cold are the two worst guides to sun exposure](https://surfersspf.com/reading-the-day/why-cloud-and-cold-mislead): Heat and ultraviolet are different parts of the sun's output, so a cold day can carry a meaningful ultraviolet load and a hot one can carry less than you assume. Cloud reduces ultraviolet unevenly and
- [The hours that matter, and what shifting a session actually changes](https://surfersspf.com/reading-the-day/the-hours-that-matter): Ultraviolet peaks sharply around solar noon because the sun's rays pass through less atmosphere when the sun is high, so the middle of the day carries far more of the daily total than the hours at eit
- [Latitude, altitude and season on a UK and European coastline](https://surfersspf.com/reading-the-day/latitude-altitude-and-season): Ultraviolet strength rises as you move towards the equator, rises with altitude, and rises through spring to a summer peak, all for the same underlying reason: the length of the path sunlight takes th
- [Reading a marine forecast for exposure and not just for swell](https://surfersspf.com/reading-the-day/reading-a-forecast-for-exposure): Surfers check forecasts obsessively and read almost none of the exposure information on them. The four fields that matter are the UV index over the hours you will be out, the tide window that fixes wh
- [Duration is the variable that makes this sport different](https://surfersspf.com/reading-the-day/duration-is-the-variable): General sun guidance is written for people who are outdoors in bursts, near shade, and able to reapply. A surf session is continuous exposure for hours, with no shade within reach and no realistic way

### Water and light: https://surfersspf.com/water-and-light
Reflection off a moving surface, wet skin, spray, glare and wind. The physical reasons a coastal session is not a day in a field, described without a single borrowed number.

- [Reflection off water, and why it changes the whole exposure picture](https://surfersspf.com/water-and-light/reflection-off-water): Standard UV forecasts describe radiation arriving on a horizontal surface from above. On the water you also receive ultraviolet reflected back up off the surface, and a broken, moving surface reflects
- [Wet skin, spray and the surface you actually present to the sun](https://surfersspf.com/water-and-light/wet-skin-and-spray): Skin in surf is never dry. It is wet, salty, cooled by evaporation, worked by wind and repeatedly wiped, and that combination changes both how anything applied behaves and how well you sense what is h
- [Glare, eyes and why eye protection matters more on water](https://surfersspf.com/water-and-light/glare-and-eye-protection): Water reflects light upward at your eyes, which is the one direction a hat brim cannot help with, and a broken surface scatters it from many angles at once. That produces glare that is both uncomforta
- [Wind, evaporative cooling and the heat load you cannot feel](https://surfersspf.com/water-and-light/wind-and-evaporative-cooling): Skin has no sense for ultraviolet, so warmth is the only cue most people have, and wind on wet skin removes it completely. That is why the classic surf burn happens on cool windy days. The same mechan
- [What happens to anything you apply, over hours of repeated immersion](https://surfersspf.com/water-and-light/repeated-immersion-and-what-survives): Anything applied to skin degrades in surf through several mechanisms at once: moving water, friction from a board and a wetsuit collar, wind and evaporation, salt, and repeated wiping of your own face

### Cover: https://surfersspf.com/cover
Garments, hoods, headwear and eye protection. What a UPF rating on a garment is describing, what a wetsuit leaves open, and why cover is the first control rather than the last.

- [Physical cover is the primary control in this environment, not the backup](https://surfersspf.com/cover/cover-as-the-primary-control): In most environments the control hierarchy runs shade first, then clothing, then applied product. Surf removes shade entirely and removes reapplication, so clothing moves to the top. A garment perform
- [What a UPF rating on a garment is actually describing](https://surfersspf.com/cover/what-upf-on-a-garment-means): A UPF rating describes how much ultraviolet a fabric transmitted under a published test standard, assessed on the fabric rather than on you. It is a property of the material as tested, and real condit
- [Rash vests, long sleeves and what a top actually covers on a paddling body](https://surfersspf.com/cover/rash-vests-and-long-sleeves): A top covers the torso and, if it has sleeves, the forearms, which is exactly the area a paddling surfer presents to the sky for hours. What it does not do is stay where you put it: it rides up at the
- [Hoods, caps and headwear for people who keep losing them](https://surfersspf.com/cover/hoods-caps-and-headwear): The head faces the sky for the entire session and is the one area a wetsuit does not cover as standard, so headwear is the highest value single addition in warm water. The obstacle is retention: anyth
- [The wetsuit gap: neck, wrists, ankles and the spring transition](https://surfersspf.com/cover/the-wetsuit-gap): A wetsuit is substantial physical cover that does not degrade across a session, so the exposure question in a suit is entirely about its perimeter: the neck opening, the wrist cuffs, the ankle cuffs a
- [Eyewear that stays on: what the category has to do in surf](https://surfersspf.com/cover/eyewear-that-stays-on): Eye protection in surf fails on retention rather than on optics. A duck dive removes anything not positively secured, and the sea keeps it. The category that works has a retaining strap or a positive 

### Exposed ground: https://surfersspf.com/exposed-ground
Back of the neck, ears, lips, scalp and the strip of face a hood does not reach. This environment concentrates damage on a handful of places, and they are the places people skip.

- [The back of the neck, and why it is the first thing to go](https://surfersspf.com/exposed-ground/the-back-of-the-neck): The back of the neck faces the sky in every posture surfing involves: paddling with the head raised, sitting on a board, looking out at a set. It sits above the wetsuit collar, below any cap without a
- [Ears: the smallest area in the sport with the worst record](https://surfersspf.com/exposed-ground/ears): The tops and outer rims of the ears face directly upward, project away from the head so nothing shades them, are left out by most caps and are the area people most reliably forget when applying anythi
- [Lips: wet, licked, salted and forgotten on every single session](https://surfersspf.com/exposed-ground/lips): Lips have little of the pigmentation that offers other skin some defence, they receive light from above and reflected up off the water, and they are the hardest surface in the sport to keep anything o
- [The scalp, the parting, thinning hair and shaved heads](https://surfersspf.com/exposed-ground/the-scalp-and-the-parting): Hair provides some cover to the scalp and much less than people assume, particularly along a parting where skin is directly exposed. Wet hair lies flat and separates, which opens partings further, and
- [The face inside a hood: the strip that is exposed on every session](https://surfersspf.com/exposed-ground/the-face-inside-a-hood): Even in a hood there is an oval of face left out, and it contains the areas this environment punishes: the nose, the cheekbones, the strip under the nose, the lips and the skin around the eyes. In sum

### The session plan: https://surfersspf.com/session-plan
Reapplication is the control this environment removes. What replaces it: timing, coverage, cover, zinc as a practical choice, and a plan made on the sand while you still have hands that work.

- [The session plan: everything that matters is decided before you paddle out](https://surfersspf.com/session-plan/the-session-plan): Surf removes every control that depends on being able to act mid session, so the useful unit of decision is the plan you make on the sand before you enter. Organise it by time rather than by topic: wh
- [The reapplication problem, and what people actually do instead](https://surfersspf.com/session-plan/the-reapplication-problem): Reapplication is the backbone of general sun guidance and it is unavailable in surf: you cannot come in, cannot dry your hands, and will not interrupt a good session. What long time water users do ins
- [Zinc in surf conditions, and why competitive water users adopted it](https://surfersspf.com/session-plan/zinc-in-surf-conditions): Heavy, visible, opaque zinc based formats became normal among competitive and long session water users for practical reasons rather than marketing ones: you can see whether it is still on your face, o
- [Application timing and coverage: getting the one attempt right](https://surfersspf.com/session-plan/application-timing-and-coverage): In surf you get one application and it happens on dry skin before the wetsuit goes on. Use a fixed order rather than relying on attention, because attention is exactly what you do not have on a windy 
- [Hydration and heat in a long session, framed as performance and safety](https://surfersspf.com/session-plan/hydration-heat-and-performance): Surfers lose fluid through sweat under a wetsuit, through breathing hard, and simply through hours outdoors, and cold water and wind suppress the thirst signal so nobody notices. The consequence peopl
- [Dawn and evening sessions as a deliberate exposure strategy](https://surfersspf.com/session-plan/dawn-and-evening-sessions): Entering at a low sun angle reduces the rate of ultraviolet arriving for the whole session, which is a bigger effect than any barrier and one that cannot wash off. It also helps most on the areas you 

### The long run: https://surfersspf.com/long-run
Travel to stronger latitudes and the mistake made in the first three days, a year on a UK coast, coaching other people, and why cumulative exposure is a reason to build a routine rather than a reason to be frightened.

- [Travelling to stronger latitudes, and the mistake made in the first three days](https://surfersspf.com/long-run/travel-and-the-first-three-days): A surfer's sense of how long they can be out before they suffer is calibrated to their home coastline, and it is a piece of local knowledge that does not travel. Arrive somewhere stronger and the same
- [A year on a UK coast, month by month, as an exposure problem](https://surfersspf.com/long-run/a-year-on-a-uk-coast): The British surfing year runs backwards from what feels intuitive. Winter is high exposure time in the water and low exposure in practice, because the suit covers everything and the sun is weak. Sprin
- [Cumulative exposure over a surfing life, treated as a reason for a system](https://surfersspf.com/long-run/cumulative-exposure-over-a-surfing-life): Somebody who surfs regularly accumulates far more unshaded outdoor hours than the general population, sustained across decades. That is worth acknowledging plainly, and the useful response is a system
- [Coaching, groups and being responsible for other people in the water](https://surfersspf.com/long-run/coaching-groups-and-other-peoples-skin): Instructors and coaches occupy one of the most demanding exposure positions on any coastline: hours standing in bright whitewater, facing the beach, unable to leave, repeating it every day of a season
- [Checking your skin, and when to stop reading and see a GP](https://surfersspf.com/long-run/checking-your-skin-and-when-to-see-a-gp): This manual does not assess skin, describe marks or say what anything might be, because a website about surfing is not a competent source on it and the competent sources are free. What it can say is t

## Reference pages

- About and funding model: https://surfersspf.com/about
- Editorial standards: https://surfersspf.com/editorial-standards
- Register, criteria, rates and refusals: https://surfersspf.com/register/criteria
- Newsletter and sponsorship: https://surfersspf.com/newsletter