It's windy, raining, and the radiator is on again. If you have rosacea in autumn, you probably know the feeling: your cheeks turn red as you come in the door, your skin feels tight, and the redness lasts longer than usual. It's not your imagination. Here are the figures behind it — and practical steps you can take today.
Why does rosacea get worse in autumn?
Rosacea often gets worse in autumn because the skin is exposed to three things at once: cold wind outdoors, dry radiator air indoors, and rapid shifts between the two. Cold and heat activate the same hypersensitive nerve and blood vessel responses in the skin, while dry air weakens the skin barrier. The result is more redness, stinging, and tightness.
Rosacea is a chronic, inflammatory skin condition that mainly affects the cheeks, nose, forehead, and chin. It comes and goes in periods — good weeks and bad weeks. Typical signs include persistent redness, visible small blood vessels, bumps, and skin that burns or stings. If you are unsure what is causing your redness, read our guide to the difference between rosacea, perioral dermatitis, and seborrheic dermatitis.
You are far from alone. A major systematic review from the University of Copenhagen brought together 32 studies involving more than 26.5 million people. The conclusion: 5,46 % of all adults have rosacea. Roughly extrapolated to Denmark, that amounts to around 250,000 adults. Rosacea was most common among people aged 45–60.
Danish autumn weather in numbers — and what it means for rosacea
Danish autumn weather seems almost designed to irritate sensitive skin. According to DMI, the normal October temperature is just 9.4°C, with an average of 83.2 mm of rain. But recent years have been well above average: October 2025 saw 119.7 mm (44% above normal), and October 2023 was the fifth wettest since records began in 1874.
At the same time, a typical October has fewer than 100 hours of sunshine. We head indoors, turn up the heat, and drink more hot tea and coffee. That makes it especially interesting to look at what people with rosacea say triggers their redness.
| Trigger | Percentage affected |
|---|---|
| Sun | 81 % |
| Emotional stress | 79 % |
| Hot weather | 75 % |
| Wind | 57 % |
| Strenuous exercise | 56 % |
| Hot baths | 51 % |
| Cold weather | 46 % |
| Humidity | 44 % |
| Indoor heating | 41 % |
| Certain skincare products | 41 % |
| Hot drinks | 36 % |
Notice how many of the triggers are associated with autumn: wind, cold, humidity, radiator heat, hot baths, and hot drinks. In a separate study with 1,190 participants, respondents said 85 %say their rosacea is affected by seasonal changes.
Autumn in 5 numbers
- 88 % cite wind as the seasonal factor that most often worsens their rosacea — even in mild climates.
- 46 % of those living in northern, cold regions say their symptoms are worst in cold weather.
- 56 % have had a flare-up from overheated rooms in winter.
- 53 % are affected after hot baths, and 42 % after hot drinks.
- 31 % even mention thick winter clothing as a trigger.
How cold, wind and radiator heat affect rosacea
Why does rosacea-prone skin react to both cold and heat? The answer lies in tiny sensors in the skin. They’re called TRPV1 and TRPA1 — a kind of temperature and pain sensor found on nerve endings and skin cells. Research shows they can be activated by cold, heat, spicy food and mechanical effects such as wind. When activated, they release substances that cause blood vessels to dilate. You see this as redness and feel it as stinging.
In people with rosacea, these sensors are extra active. A German study found markedly increased TRPV1 gene activity in skin with the erythematotelangiectatic form of rosacea. This means the skin reacts faster and more strongly than normal skin to the same stimulus.
Then there’s the skin barrier — the outermost layer that keeps moisture in and irritants out. Cold outdoor air contains very little water, and radiator heat dries out indoor air even more. A study from Korea showed that just six hours in a dry, heated winter indoor environment was enough to measurably change the skin’s moisture, water loss and redness. When the barrier weakens, more moisture escapes — and irritants get in more easily. Learn more about how to recognize and repair a damaged skin barrier.
The double autumn trap: Outside, cold and wind constrict blood vessels and dry out the skin. When you come inside to a warm room, the vessels suddenly dilate again. It’s often the change — not just the cold — that causes the burning redness you feel 5–10 minutes after coming inside.
6 autumn mistakes that make redness worse
Many of the habits we pick up when the weather turns cold are exactly what rosacea-prone skin doesn’t like. Here are the most common:
- Long, hot showers. They feel wonderful after a cold bike ride, but hot water is a trigger for over half of people. In the NRS survey, 73% said they had deliberately switched to cooler water after their diagnosis. Lukewarm water and shorter showers make a difference.
- Radiator on full blast. A warm, dry room can trigger flushing and dry out your skin. Keep the temperature moderate, and don’t sit right by the radiator or wood-burning stove.
- Boiling-hot tea and coffee. It’s often the temperature, not the caffeine, that causes redness. Let your drink cool for a few minutes.
- Bare face in the wind. Wind is the seasonal trigger mentioned by the most people. A soft scarf pulled up over your cheeks is an underrated skincare measure.
- Skipping sunscreen. Sun is still the biggest trigger by far — 81%. Even the low autumn sun counts. See our guide to protecting rosacea-prone skin from the sun.
- Switching to heavy, fragranced winter creams. Many “rich” creams contain fragrance and essential oils. 41% cite skincare products as a trigger. More isn’t always better — gentle and simple is.
Calm for your skin while you sleep
CØLM Redness Relieving Cream is a fragrance-free night cream with zinc oxide and sulfur. Developed for redness-prone skin that needs soothing — even when autumn weather is acting up.
See the CØLM night cream →How to build a rosacea routine for autumn and winter
The best autumn routine isn’t new or complicated. It’s simple, gentle, and consistent. In the NRS survey, 87% said that treatment combined with changed habits had helped their symptoms. Here’s a routine that accounts for wind, cold, and radiator heat.
Morning
- Cleanse with lukewarm water and a mild, fragrance-free cleanser — or just water if your skin is very dry.
- Moisturizer with barrier-supporting ingredients. A cream such as grums Hydra Calm Face Cream with hyaluronic acid, which binds moisture, and vitamin B3, which strengthens the barrier, is well suited to autumn skin.
- SPF 30–50 sunscreen as the final layer, even on overcast days.
Before you go out
- Apply an extra thin layer of moisturizer to your cheeks and nose if it’s windy.
- Pull your scarf up over your cheeks. Choose a soft material so the fabric doesn’t chafe.
When you come inside
- Take off your outerwear as soon as you come inside to avoid overheating.
- Avoid going straight to the radiator. Give your skin a few minutes to adjust to the temperature.
- Cool down gently: Holding a cold glass of water in your hand or against your cheek may calm the onset of a flush.
Evening
- Gentle cleanser with lukewarm water. Pat the skin dry — don’t rub.
- Night cream for redness. At night, the skin works on repairing itself. CØLM Redness Relieving Cream is used in the evening and is developed for redness-prone skin.
- Keep the bedroom cool — around 17–19 °C is a good rule of thumb.
What to look for in rosacea products in winter
A review of environmental and lifestyle triggers for rosacea recommends mild cleansers and moisturizers that restore the skin barrier — and avoiding known irritants such as fragrance.
Good ingredients for autumn skin:
- Ceramides — the skin’s own lipids that “glue” the barrier together.
- Glycerin and hyaluronic acid — attract and retain moisture.
- Niacinamide (vitamin B3) — strengthens the skin barrier and may reduce visible redness.
- Zinc oxide — soothing and gentle on sensitive skin.
- Dimethicone and cholesterol — form a protective layer without clogging pores.
Ingredients you may want to avoid:
- Fragrance and essential oils
- Denatured alcohol (alcohol denat.) high on the ingredient list
- Harsh scrubs and strong acids in high concentrations
- Strongly foaming cleanser with SLS (sodium lauryl sulfate)
Pro tip: Put a humidifier in your bedroom and aim for humidity of around 40–50%. An inexpensive hygrometer shows you how dry the air actually is when the radiators are on. Many people are surprised by how low the reading is in January.
When should you seek medical help?
Most cases of rosacea can be managed by your GP. According to Lægehåndbogen, rosacea typically begins between the ages of 30 and 50. However, many people go a long time without a diagnosis: in a large Danish review, self-reported rosacea was 9.71%, while only 1.05% had a diagnosis recorded in health data. Contact your doctor if:
- The redness is persistent and does not disappear between flare-ups.
- You develop many bumps or pimples that do not improve with gentle skincare.
- The skin on your nose starts to thicken or become bumpy.
- Your eyes are red, dry, gritty, or sensitive to light — this could be ocular rosacea, which should be assessed by an eye doctor.
- Redness affects your mood or your desire to socialize. That is a completely valid reason. Also read how rosacea affects your self-image.
Frequently asked questions about rosacea in autumn
Can cold cause rosacea?
Cold does not cause rosacea, but it can trigger flare-ups in people who have the condition. 46% of participants in a large study by the National Rosacea Society cited cold weather as a trigger. This is because cold activates oversensitive nerve and temperature receptors in the skin.
Why does my face turn red when I come in from the cold?
Outside in the cold, blood vessels constrict to retain heat. When you come inside to a warm room, they quickly dilate again. With rosacea-prone skin, this reaction is stronger and lasts longer. Avoid the radiator for the first few minutes, and take off your outerwear right away.
Is rosacea worse in winter or summer?
It varies. Sun and heat are the biggest triggers overall, so many people feel worst in summer. But in cold northern regions, 46% say their symptoms are worst in cold weather. Wind, dry air, and radiator heat make winter difficult for many.
Should I use sunscreen in autumn if I have rosacea?
Yes. Sun exposure is the most common rosacea trigger of all — 81% react to it. UV radiation is present even on cloudy days. Use a gentle sunscreen with SPF 30–50 every morning as the last step in your routine.
Does a humidifier help with rosacea?
A humidifier does not treat rosacea, but it can counteract the dry air from radiators that weakens the skin barrier. The National Rosacea Society recommends using a humidifier in winter. Aim for humidity of around 40–50% — especially in the bedroom.
Which cream is best for rosacea in winter?
Look for a fragrance-free cream with barrier-supporting ingredients such as ceramides, glycerin, hyaluronic acid, and niacinamide for daytime use. In the evening, a night cream formulated for redness can be a good addition. Avoid fragrance, essential oils, and harsh acids.
Your autumn routine in one bundle
CØLM night cream for redness in the evening and grums Hydra Calm for the skin barrier in the morning. Combined in Rosacea & PD basics.
See Rosacea & PD basics →References
- Gether L, Overgaard LK, Egeberg A, Thyssen JP — Incidence and prevalence of rosacea: a systematic review and meta-analysis (2018). British Journal of Dermatology (as reported by the National Rosacea Society).
- National Rosacea Society — Rosacea Tripwires: survey of 1,066 patients. Rosacea Review.
- National Rosacea Society — Survey of 1,190 rosacea patients on seasonal changes (2009).
- National Rosacea Society — Special Steps for Rosacea Winter Care (2017). Rosacea Review.
- National Rosacea Society — Effects of Heat in Winter: survey of 424 patients (2010).
- Sulk M, Seeliger S, Aubert J et al. — Distribution and Expression of Non-Neuronal Transient Receptor Potential (TRPV) Ion Channels in Rosacea (2012). Journal of Investigative Dermatology.
- Aubdool AA, Brain SD — Neurovascular aspects of skin neurogenic inflammation (2011). J Investig Dermatol Symp Proc.
- Effects of winter indoor environment on the skin — Unveiling skin condition changes in Korea (2023). Skin Research and Technology.
- DMI — October 2025 summary (2025). Danish Meteorological Institute.
- Sundhed.dk, Medical Handbook — Rosacea.
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