Watery Eyes in the Cold: What’s Actually Causing It?

If you’ve noticed your watery eyes in cold weather becoming a regular occurrence this time of year, you’re far from alone. It’s a sign that there’s more going on than simple sensitivity. That constant tearing, the blurry moments as you blink away moisture, the embarrassment of people thinking you’ve been crying, it’s a genuinely frustrating experience. The good news? It’s very treatable.

Let’s take a closer look at what’s happening and what you can do about it.

Your eyes are doing their job

Tearing is a natural defence mechanism. When your eyes detect something irritating, such as wind, cold air, dust, or dryness, they respond by flooding the surface with tears to flush out the irritant and restore comfort. So when you step outside on a cold morning, and your eyes immediately start to stream, it’s not a malfunction. It’s your eyes trying to protect themselves.

The problem is that this response can go into overdrive, producing far more tears than are actually useful. Understanding what’s triggering that response is the first step to managing it.

The main reasons your eyes water in winter

1. Cold air and wind

Cold, dry air is one of the most common environmental triggers for eye watering outside. When the temperature drops, air holds less moisture. Instead, it often draws moisture from your eye’s surface. Your lacrimal glands (the tear-producing glands in your eyelids) detect the dryness and overcompensate by producing more tears than your eyes can drain, resulting in that familiar watery overflow down your cheeks.

Windy weather eyes are particularly susceptible because wind accelerates tear evaporation while simultaneously blasting the eye surface with cold, dry air. It’s a double hit that your eyes find very hard to ignore.

2. Dealing with dry eyes

It sounds odd and counterintuitive, but sometimes, you can even experience dry eyes and watery eyes together. If your tear film is unstable or your tears evaporate too quickly, your eyes can’t maintain the lubrication they need. The dryness triggers a reflex, and suddenly your eyes are flooding with watery, low-quality tears that don’t properly lubricate your eye surface.

This is why some people find that their dry eye symptoms, such as stinging, burning, grittiness, or a sensation of something in the eye, actually worsen in winter, even when their eyes appear to be constantly watering. The tears being produced are a stress response rather than a functional solution.

If this sounds familiar, it’s worth speaking with an optometrist who can assess your tear film quality and recommend appropriate watery eyes treatment. You can find your nearest practice using the Eyecare Plus Find an Optometrist tool.

3. Common eye irritants

Eye irritation in winter can come from a surprising range of sources beyond just the cold itself:

• • • • Indoor heating: Central heating and reverse-cycle air conditioning dry out the air inside, reducing humidity and stressing the tear film even when you’re not outdoors.
      • Wood smoke: Open fireplaces and outdoor fire pits are common winter irritants that can trigger tearing and redness.
      • Allergens: Winter moulds, dust mites (which thrive in warm indoor environments), and even certain cold-and-flu medications can all contribute to eye irritation.
      • Screen time: We tend to blink less when staring at screens, and winter’s long evenings spent indoors often mean more screen exposure. Reduced blinking leads to faster tear evaporation, which in turn contributes to dryness and reflex tearing.

4. Blocked tear ducts

In some cases, excessive tearing eyes aren’t caused by overproduction at all — they’re caused by poor drainage. Your tears normally drain through small channels called tear ducts (puncta) at the inner corner of each eye. If these become narrowed or blocked — which can happen due to infection, inflammation, or simply the anatomy of your face — tears have nowhere to go and spill down your cheeks. Cold weather can worsen this by causing the ducts to constrict slightly.

If you notice watering predominantly in one eye, or the tearing is persistent regardless of conditions, this is something to have checked by an optometrist.

Why do my eyes water in winter more than any other season?

Why do my eyes water in winter rather than year-round? The answer lies in the combination of environmental conditions that converge during the colder months. You have cold, low-humidity outdoor air, dry heated indoor air, more time spent in front of screens and heaters, and often more exposure to irritants like smoke and dust. None of these factors alone is necessarily severe, but together they can overwhelm your eye’s natural protective systems.

People who already have a tendency toward dry eye, blepharitis (inflammation of the eyelid margins), or rosacea affecting the eyes often find their winter eye problems are noticeably worse during the cooler months.

When are watery eyes a cause to see your optometrist?

Occasional watering in response to wind or cold is usually nothing to worry about. However, you should book an eye examination if:

• • Your eyes water persistently, even indoors or in calm conditions
  • You’re experiencing burning, stinging, or a gritty sensation alongside the tearing
  • One eye is affected significantly more than the other
  • Your vision is being affected, even temporarily
  • Over-the-counter eye drops aren’t providing relief
  • You notice discharge, crusting, or changes in the appearance of your eye

These symptoms could point to dry eye disease, blocked tear ducts, blepharitis, or other conditions that benefit from professional diagnosis and management. Learn more about common eye health conditions on the Eyecare Plus Eye Health hub.

What can you do about it?

The right approach to watery eye treatment depends on what’s causing the problem, but here are some practical steps that help most people:

Protect your eyes outdoors

Wearing sunglasses in winter, particularly wraparound and close-fitting styles, can help you block wind and reduce tear evaporation. It might feel funny at first, but sunglasses are great for managing watery eyes in cold weather during your commute, while exercising, and in exposed environments. They will still protect your eyes from UV radiation, which remains a real risk in winter.

Address indoor dryness

Positioning yourself away from direct heat, taking breaks from screen time, and using a humidifier in your bedroom or main living area can significantly improve indoor humidity and reduce dryness that contributes to reflex tearing.

Use lubricating eye drops

For mild to moderate dry eye, preservative-free artificial tear drops can help stabilise the tear film and reduce reflex tearing.

Follow a winter eye care routine

Consistent warm compresses and eyelid hygiene can make a meaningful difference for people with blepharitis or meibomian gland dysfunction (a common contributor to evaporative dry eye). For more practical advice, see the Eyecare Plus Top 7 Tips for Winter Eye Care.

Let Eyecare Plus help you manage your watery eyes in cold weather

Watery eyes might feel like a minor seasonal inconvenience, but persistent or worsening symptoms are worth taking seriously. Your tear film is a finely balanced system, and when it’s under stress, it affects your comfort, your vision, and your quality of life.

At Eyecare Plus, our optometrists use industry-leading technology to thoroughly assess your eye health, including your tear film quality and drainage, as part of every comprehensive Checkup Plus™ examination. If cold weather is making your eyes miserable, there’s no need to simply put up with it.

Book a Checkup Plus™ examination at your local Eyecare Plus practice and get to the bottom of what’s causing your watery eyes.