What to Wear by Temperature: A Reference Guide

What to wear at any temperature? The most practical answer is a table you look up by zone: check which band today falls into, take that band's outfit idea, then fine-tune for wind, humidity and your own body. Six zones below cover everything from below zero to above 28°C. One caveat first: every zone is a reference — comfort varies by person, and the same 15 degrees in wind versus sunshine are two different days.

Key takeaways

• Lookup logic: the day's high sets the base layer, the low sets the outer layer, the mid-layer handles the gap.
• Six zones: above 28°C / 22–28 / 15–22 / 8–15 / 0–8 / below 0°C — combinations in the master table.
• Three correction variables: wind (feels colder), rain (fabric and shoes), and the indoor-outdoor gap (an easy on-off mid-layer).
• The table is a starting point; your body makes the final call.

What to wear by temperature — the master table (reference)

Zone (reference)	Outfit idea	Carry / adjust
Above 28°C	Tee or tank + light bottoms in breathable fabric	A shirt for air-conditioned rooms
22–28°C	Tee or thin long sleeve + trousers or skirt	A light cardigan within reach
15–22°C	Long sleeve + light jacket or knit (two layers)	Shed the outer layer at noon
8–15°C	Base + mid-layer + light outer (three layers)	Mid-layer removable
0–8°C	Three layers thickened; coat or heavy jacket outside	Scarf and hat as comfort demands
Below 0°C	Warm mid-layer (wool or fleece) + heavy coat	Gloves, scarf, hat; grippy soles

How to use it: find today's high to set the base, the low to set the outer layer. When the two sit more than one band apart, a mid-layer becomes mandatory; within one band, decide by whether you run cold or warm.

Each zone, unpacked

Above 28°C: breathability and sun protection lead. Plain tees with light trousers or longer skirts in cotton-linen or quick-dry fabric; commuters keep a shirt for air conditioning.

22–28°C: mornings and evenings have cooled. A tee or thin long sleeve as the base with a cardigan carried — this band's "one-and-a-half layers" is the most useful state of spring and autumn.

15–22°C: the standard two layers. A long-sleeve base (thin knit, long-sleeve tee) under a light jacket (shirt-jacket, trench, sweatshirt), removing the outer layer at midday.

8–15°C: the three-layer zone begins. Same base, a knit or hoodie as the mid-layer, trench or jacket outside. This band has the most combination variety — for how the three layers fit together, see the layering guide.

0–8°C: three layers, thickened. The mid-layer upgrades to wool or fleece, the outer to a coat, heavy jacket or down; scarves and hats join as comfort demands.

Below 0°C: warmth first. A warm mid-layer under a long heavy coat, accessories all on (scarf, gloves, hat), and soles with deep tread.

Adjusting for wind, rain and the indoor-outdoor gap

Wind: wind drops the feels-like temperature below the forecast — prepare one band colder, favor dense wind-resistant outer fabrics, and know that wide skirts and oversized pieces fight back in gusts.

Rain: keep the temperature band, swap the pieces — quick-dry or water-resistant fabric, non-absorbent shoes, hems off the ground, per the rainy-day guide.

Big indoor-outdoor gap (heated or air-conditioned buildings): outer layer for outside, thin layers for inside, with a cardigan-style mid-layer that goes on and off in seconds — "one piece inside, one piece outside" beats one enormous garment.

How to do this with Vestia

1. Outfits by temperature daily: tell AI Outfit the day's temperature and occasion ("9°C today, commuting") and it proposes 2–4 outfits from what you already own — this table, translated into your wardrobe.
2. Sort your wardrobe by weight: plain-language searches ("light jackets", "heavy coats", "knits") group pieces per temperature band so seasonal lookup gets faster.
3. Log and refine: save worn outfits to the wear calendar and review after two weeks — which bands you overdressed for and which ran out of options, until your personal temperature table sharpens.