Short answer: It depends — 24°C is mildly warm/comfortable, while 24°F is cold (below freezing).
Explanation
- If you mean 24°C ($24^\circ\text{C}$): that’s about warm and comfortable for many people. Converting:
$$F=\frac{9}{5}C+32$$
$$F=\frac{9}{5}\times24+32=75.2^\circ\text{F}$$
So $24^\circ\text{C}\approx75^\circ\text{F}$. That is slightly warmer than a typical indoor “room temperature” (about $20$–$22^\circ\text{C}$) — pleasant for light clothing, a little warm for sleeping for some people, and comfortable for most indoor activities.
- If you mean 24°F ($24^\circ\text{F}$): that equals about $-4.4^\circ\text{C}$, so it’s well below freezing and definitely cold. You’d need a winter coat, hat, gloves, etc.
Context matters
- Outdoors vs indoors: $24^\circ\text{C}$ outdoors can feel different depending on humidity, wind, and sun. High humidity makes it feel hotter; wind or shade makes it feel cooler.
- Activity level: exercising raises how warm you feel.
- Water temperature: $24^\circ\text{C}$ water feels cool-ish (not icy, but not warm) to many swimmers.
- Personal preference and acclimatization: people from warmer climates may find $24^\circ\text{C}$ cool; others find it warm.
Quick reference (approximate comfort perception)
- Below $0^\circ\text{C}$: freezing/cold
- $0$–$10^\circ\text{C}$: cold/cool
- $11$–$17^\circ\text{C}$: mild/cool
- $18$–$22^\circ\text{C}$: comfortable/room temperature
- $23$–$27^\circ\text{C}$: warm
- Above $28^\circ\text{C}$: hot
Would you like advice for clothing or indoor thermostat settings for a specific unit (°C or °F) and situation?