Topic
Seasonal / UV-Index Topics
articles.
Every Seasonal / UV-Index Topics article in the journal — sourced, science-led, zero hype.
- Seasonal Yes, You Can Burn on a Cloudy Day: The 80% UV Rule Gray skies feel safe, but most of the sun's UV slips right through the clouds and onto your skin. Read it →
- Seasonal What the UV Index Actually Means: A Plain-English Guide Your weather app says 'UV 8' — here's exactly what that number means for your skin and your plans. Read it →
- Seasonal WMO: 2015–2025 Are the 11 Warmest Years Ever Recorded An unbroken streak of record-warm years means longer, more intense high-UV seasons — and a stronger case for daily SPF. Read it →
- Seasonal January 2025 Was the Hottest January on Record — Even With La Niña Record warmth during a 'cooling' La Niña is a reminder that winter is no longer a season to skip SPF. Read it →
- Seasonal A Three-Year Stretch Just Averaged Above 1.5°C: The New Sun-Exposure Baseline The 1.5°C line everyone talks about has effectively been crossed on a multi-year basis, normalizing the heat-and-sun extremes that make year-round UV protection sensible. Read it →
- Seasonal 2024 Was the First Year Above 1.5°C — The Heat That Set Up 2025's Sun Season The hottest year ever recorded rolled straight into 2025 — a useful lens for why high-UV days are creeping into more of the calendar. Read it →
- Seasonal 2025 Was Earth's Third-Hottest Year — What That Means for Your Daily UV Dose Copernicus just confirmed 2025 as the planet's third-warmest year — and warming seasons are nudging sunscreen from a summer habit to a year-round one. Read it →