RIGHT NOW · ONE CITY PER REGION
The summer world, live
One marquee city from each region — its temperature and UV index this minute. Tap through for the region’s full table: feels-like, today’s high, UV now and at peak, and the air.
In season now — northern summer (June–August)
The tropics — hot year-round
The deep tropics have no temperate summer — heat and high UV run all year, shaped by the monsoon rather than the calendar.
Southern hemisphere — summer returns in December
South of the equator the seasons are flipped: summer runs December–February, so these regions are in their winter half of the year right now. Their readings are live either way.
How to read the numbers
The heat figures are measurements— the air temperature and, separately, what it feels like once humidity and wind are counted in — not a health verdict. The two indexes carry their standard, attributed scales:
UV index — the WHO scale
Air quality — the US EPA AQI scale
New to these indexes, or curious what a heat dome actually is? These explainers unpack them: