A day in Istanbul usually runs longer than planned. A walk that starts in Sultanahmet stretches to Eminönü, and from there by ferry to the other shore. The time you spend in the sun over all of that is far more than you thought in the morning. What is more, in the city the sun does not only come from above: the sea surface, the stones of open squares and the ferry deck reflect the light. Planning sun protection before you set out is one of the easiest ways to reduce evening tiredness and skin discomfort.

Build the day around the hours

The hours when the sun is at its steepest are usually between midday and mid-afternoon. In Istanbul these are also the hours when queues for museums and historic buildings grow longer, so the time spent waiting outdoors increases too. Building the programme around this is the least effortful way to protect yourself, because it needs no product.

  • Put open-air sightseeing in the early morning or the late afternoon
  • Set aside the midday hours for indoor places, a museum or a long lunch
  • If you will stay on deck during ferry journeys, choose the shady side
  • Try to go to places with a long queue as soon as they open

Cloudy days are misleading. Because light can pass through clouds, you still need to keep protecting yourself on a day when you feel cool.

Application: when, how much, where

The effect of sunscreen fades with time, sweat and friction. Applying it once in the morning is generally not enough for an outing that lasts until evening. The two most common mistakes are using too little and never reapplying during the day.

  • Apply about 15–20 minutes before going out
  • On a long day outdoors, reapply every few hours
  • Reapply earlier if you sweat, go in the sea or wipe your face
  • Do not be stingy; a thin layer does not give the protection you expect

The face, the back of the neck, the ears, the parting in your hair and the backs of the hands are the most often missed areas. If you are out in sandals, do not forget the tops of your feet; if you are in a vest top, do not forget the shoulders and the line of the nape. Carrying a small-size product in your bag makes reapplying actually doable; a large bottle left at the hotel is no use to you during the day.

Layers other than the product that work

The product does not carry the whole load alone. Shade and clothing are the simplest and most reliable layers between you and the sun. On a hot day they also keep you cool.

  • A wide-brimmed hat shades the crown and the neck together
  • Light-coloured, thin and tightly woven fabrics feel more comfortable in the heat
  • Sunglasses protect your eyes from strain on ferries and shoreline walks, where you look at a bright surface for a long time
  • A small umbrella gives portable shade while you wait in a queue

Skin types and sensitivities vary from person to person. Fragrance-free products with simpler ingredients are generally better tolerated on sensitive skin. Rather than trying a new product for the first time on the trip, it is safer to try it on a small area a few days before you leave. If a medicine you take increases sun sensitivity, or you have a known skin condition, it is best to talk to a health professional before you travel.

If your skin has burned: the rest of the day

When you notice redness, the most practical step is to get out of the sun and cool down. Move into the shade, drink water and avoid tight fabrics that will irritate the skin. A cool shower and a damp compress feel good to most people. Avoiding any more sun exposure that day saves the next day's programme. If the redness is severe, if a blister has formed, or if it comes with symptoms such as fever, chills or dizziness, do not try to manage it on your own; go to a local health facility.

In short

Sun protection on an Istanbul trip is not a separate job but a chain of small habits that settle into the flow of the day: apply in the morning, reapply during the day from the small bottle in your bag, plan the midday hours in the shade and take your hat with you. Once these four are in place, you finish a long city day more comfortably and end the evening with enjoyment rather than tiredness.