Overgeneralisation: Don’t Let One Raincloud Ruin the Whole Day

Overgeneralisation is the term sometimes used to describe a tendency many people have to draw overly broad conclusions based on a single experience. It is normal, natural and often unavoidable.

In March 2026 it was reported that several big attractions, such as Chester Zoo, were calling for the designers of weather apps to rethink the way they represent our weather using icons. They suggested that over £100,000 per day could be lost in ticket sales unnecessarily because the weather for a whole 24 hours is represented by a single image.

Imagine you’re going to the zoo and you see this icon:

Would you still go?

But what if it turned out that the detailed weather forecast for the day was sunny for the most part but a single thunderstorm was likely to break around noon?

Time to visit the reptile house (or the aquarium if you’re squeamish).

So yes, I think the theme parks and other venues are definitely on to something and I can see why they’re not happy. I can also see why a single icon (if sometimes inaccurate) can still be helpful for the user.

People also do a similar thing with their own experiences. A difficult conversation becomes a terrible day. A bad day becomes an awful week.

What is overgeneralisation?

Overgeneralisation occurs when we use one experience – a conversation, a facial expression, a mistake – to draw a much bigger conclusion.

• I spilt the rice krispies. It’s going to be one of those days.
• I’ve had a terrible week.
• Last month was sooo cold I spent the whole time in bed wrapped in a blanket.
• The boss rejected my idea. Nobody is interested.
• I didn’t manage to hit the bullseye this time, I’ll never be any good.
• That conversation didn’t go well – I’m awful with people.

Sometimes we just say these things for dramatic effect, and that’s fine. The danger comes when we define our whole experience by our overgeneralisation about one experience to the extent that it limits us.

Is overgeneralisation really such a big deal?

When someone asks about your day it is a convenient shorthand to say it was a bad day, or it was a good day. You’re just giving an overview of how you feel things have been on average. It’s a generalisation certainly, but it doesn’t have to do any major harm.

The problem arises when how you generalise an experience has an influence on what happens next.

If you internalise or focus on the ‘bad day’:

• Later challenges or even mild inconveniences may feel like further proof.
• You may overlook the more pleasant moments.
• You might feel low.
• You may give up on plans and take fewer risks.

Why do we overgeneralise?

It’s important to not beat yourself up about it. There is nothing wrong with you if you find yourself doing this. There is a good reason for this tendency and it is completely natural.

Overgeneralisations are an undocumented feature of our unconscious mind and they exist because the process that creates them is often useful. For example, you see a snake and it bites you and you become ill. You are in a lot of pain for a while, but luckily you survive.

You could decide that you need to avoid that specific snake in future. Or you could decide to avoid that particular species of snake. Which is more useful?

Since your safety isn’t worth sacrificing for the sake of accurate identification, you may be even better off thinking ‘snake any kind of snake’ and you avoid them all. Generalisation could save your life here. Even if you overgeneralised and developed a mortal fear of hosepipes, it might be considered better than the reverse.

The problem is that in the complexities of human lives, the generalisation strategy doesn’t always work well.

Generalisation helps us learn from experience. Overgeneralisation makes the lesson much bigger than the experience justifies.

Noticing the pattern

The examples above have a pattern to them:

First we focus on the most emotional or memorable moment. The fear of the snake, the disappointment of a failed pitch.

Then we use it to label the whole experience – snakes are bad, we’re hopeless at pitching ideas.

We may repeat that label to ourselves or someone else, which reinforces it and broadens the way we apply it.

Gradually we begin to remember the label rather than the full experience.

There is a progression that looks like:

“That went badly.”

“Things like that always go badly for me.”

“I’m no good at them.”

“There’s no point trying again.”

How to stop overgeneralising

There are some simple strategies you can use to help manage overgeneralisation. It’s about being aware of the patterns, noticing, where possible that you may be doing it, and challenging yourself with some questions.

What actually happened?

Go over the detail of the incident and reevaluate it when you have had time to calm down.

How much of the day, week or experience did it occupy?

Look at the bigger picture and try and put the experience in perspective.

What else happened?

This is important. List the other things that happened, even if they are mundane and ordinary. Try to think of 10 other things that also happened in the time period that were not a threat or a problem for you.

Is this always true, or did it just happen this one time?

Be honest with yourself about how much evidence you have for any generalisation.

Am I describing an event or defining myself?

It’s tempting to shift bad experiences into judgements about yourself. It’s fine to consider what part you played in a negative experience and what you could learn. That doesn’t mean you have to make it a permanent flaw in your nature or your abilities.

What would be a more accurate sentence?

Was it really a bad day? Maybe you could say the day was okay apart from x that happened. Or, ‘It would have been better if x hadn’t said…’

You may find it useful to list these questions in your journal if you are used to expressing yourself that way. They are also great questions to ask a friend or family member if you catch them overgeneralising.