Dressing for the in-between seasons is hard because today has two temperatures, not one — a low of 8°C in the morning, a high of 19°C in the afternoon. Everyone says “just layer,” but rarely how many layers, and based on what. Let’s fix that first.
1. Start with two numbers: the low and the high
Check just today’s low and today’s high. The gap between them decides how much you’ll be taking off and putting back on. In-between seasons often swing about 10°C, and up to 13–15°C on big days.
2. Outerwear for the low, base layer for the high
The simplest rule:
- Pick outerwear for the morning low — warm enough for the coldest moment (the commute).
- Pick your base layer for the afternoon high — cool enough once the jacket comes off.
Say the low is 10°C and the high is 20°C: choose outerwear from 10°C outfits (trench, cardigan, denim jacket) and a base from 20°C outfits (long-sleeve shirt, light knit). If the low dips to 8°C, go a touch heavier on the outer.
3. A layer formula by swing size (Δ)
Let Δ = high − low decide your layer count.
| Swing (Δ) | Layers | Build | Key point |
|---|---|---|---|
| ≤ 7°C | 2 | Base + a light outer | You can keep the outer on all day |
| 8–11°C | 2–3 | Base + light knit/shirt + easy-off outer | The standard case. Shed the outer midday |
| ≥ 12°C | 3 | Thin base + mid layer + packable outer | Bring a bag for it; warm your neck at dawn |
4. What to do with the jacket you took off
The real challenge of layering is “after you take it off.”
- Choose a packable outer (thin windbreaker, shacket, knit cardigan). A heavy coat becomes dead weight once removed.
- A cardigan can be draped over the shoulders or tied at the waist as a styling move.
- Carry a bag it fits into (backpack, tote) and the day gets much easier.
5. Three common mistakes
- 1Trying to solve it with one thick coat — take it off in the warm afternoon and you’re left in a single tee. Split it into layers.
- 2A too-thick base layer — a fleece top under a knit stays hot even with the outer off. Keep the base thin.
- 3Dressing for the high only — you’ll freeze in the morning and end up buying something. Outerwear always follows the low.