UV Index Dial
A copy-paste weather & ambient component in pure HTML & CSS. Zero dependencies, framework-agnostic, MIT-licensed.
Weather & AmbientHTMLCSSany framework
7UV Index · High
Copy into your project
HTML
<!-- UV Index Dial (decorative half-circle gauge + a live numeric readout) -->
<div class="nuda-wa2-uv-dial">
<div class="nuda-wa2-uv-dial__gauge" aria-hidden="true">
<span class="nuda-wa2-uv-dial__arc"></span>
<span class="nuda-wa2-uv-dial__needle"></span>
<span class="nuda-wa2-uv-dial__hub"></span>
</div>
<div class="nuda-wa2-uv-dial__value">
<strong>7</strong>
<span>UV Index · High</span>
</div>
</div>CSS
.nuda-wa2-uv-dial {
position: relative;
width: 100%;
max-width: 180px;
height: 140px;
border-radius: 14px;
background: #111114;
border: 1px solid rgba(255,255,255,.08);
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
gap: 8px;
padding: 14px;
box-sizing: border-box;
}
.nuda-wa2-uv-dial__gauge {
position: relative;
width: 96px;
height: 52px;
overflow: hidden;
}
.nuda-wa2-uv-dial__arc {
position: absolute;
top: 0;
left: 0;
width: 96px;
height: 96px;
border-radius: 50%;
background: conic-gradient(from 180deg,#22c55e 0deg,#e4ff54 90deg,#f59e0b 140deg,#ef4444 180deg,transparent 180deg);
mask: radial-gradient(circle,transparent 60%,#000 61%);
-webkit-mask: radial-gradient(circle,transparent 60%,#000 61%);
}
.nuda-wa2-uv-dial__needle {
position: absolute;
bottom: 0;
left: 50%;
width: 2px;
height: 40px;
margin-left: -1px;
background: #fafafa;
transform-origin: 50% 100%;
transform: rotate(52deg);
will-change: transform;
animation: _nuda-wa2uvDialNeedle 6s ease-in-out infinite;
}
.nuda-wa2-uv-dial__hub {
position: absolute;
bottom: -3px;
left: 50%;
width: 8px;
height: 8px;
border-radius: 50%;
background: #fafafa;
transform: translateX(-50%);
}
.nuda-wa2-uv-dial__value {
text-align: center;
color: #fafafa;
font: 600 12px/1.3 system-ui,sans-serif;
}
.nuda-wa2-uv-dial__value strong {
display: block;
font-size: 22px;
color: #e4ff54;
}
.nuda-wa2-uv-dial__value span {
display: block;
font-size: 10px;
color: #777;
text-transform: uppercase;
letter-spacing: .06em;
}
@keyframes _nuda-wa2uvDialNeedle {
0%,100% {
transform: rotate(48deg);
}
50% {
transform: rotate(56deg);
}
}
@media (prefers-reduced-motion:reduce) {
.nuda-wa2-uv-dial__needle {
animation: none;
transform: rotate(52deg);
}
}
How to use UV Index Dial
Paste the HTML where you need it and the CSS into a global stylesheet (or a <style> tag). Every class is prefixed nuda- so it never collides with Tailwind or your own styles. Tweak the CSS custom properties to match your design system.
Works in React, Vue, Svelte, Astro, Next.js, Nuxt, Laravel Blade, Django, Rails — or a single .html file. No npm install, no build step.