Weather

Santiago weather

Live rain radar, current conditions, an hour-by-hour outlook and a seven-day forecast for Santiago, with original writing about the city's climate from The Daily Santiago.

Today's briefing

# Santiago Weather Santiago's waking up to a crisp 7 degrees this morning, though it'll feel more like 4 with the wind chill, before climbing to a pleasant 18 degrees this afternoon with zero chance of rain. With a moderate UV index of 4, you'll want to slip on some layers this morning and shed them as the day warms up. Looking ahead to the weekend, Saturday will top out at 14 degrees with a slight 12 per cent chance of showers, whilst Sunday should be a touch warmer at 15 degrees and mostly dry at just 9 per cent rain chance.

10°

Clear · feels like 6°

Today: 17° / 7°
Humidity: 25%
Wind: 3 km/h NE
UV index: 1 · Low
Sunrise: 7:47 am
Sunset: 5:44 pm
Updated: 9:30 am

Next 24 hours

Now
8°
0%
10am
11°
0%
11am
13°
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12pm
15°
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1pm
16°
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2pm
17°
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3pm
17°
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4pm
17°
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5pm
15°
0%
6pm
12°
0%
7pm
11°
0%
8pm
10°
0%
9pm
10°
0%
10pm
9°
0%
11pm
9°
0%
12am
8°
0%
1am
7°
0%
2am
7°
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3am
6°
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4am
6°
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Live rain radar

Drag to pan, scroll the page over it

Animated rain radar via RainViewer (Bureau of Meteorology sources). Full BOM radar loop.

Seven-day forecast

Sun
Mainly clear
17° 7°
Rain 0%
Mon
Mainly clear
16° 4°
Rain 0%
Tue
Mainly clear
12° 3°
Rain 0%
Wed
Clear
13° 3°
Rain 0%
Thu
Clear
13° 3°
Rain 2%
Fri
Mainly clear
13° 1°
Rain 12%
Sat
Mainly clear
15° 1°
Rain 9%

Air quality

160

Unhealthy

US AQI

PM2.5: 90
PM10: 91
Ozone: 17

Air quality by Open-Meteo (CAMS), in µg/m³.

Sun and moon

Sunrise: 7:47 am
Sunset: 5:44 pm
Daylight: 9h 57m

Full moon

100% lit

From the weather desk

Santiago weather, explained

How to read the Santiago forecast

A good forecast is really three views at once. The current panel tells you what it feels like outside right now, which is what matters before you head out the door. The hourly strip is for planning the next part of your day: when the rain band arrives, when the wind picks up, when it is warm enough to walk. The seven-day outlook is for the week ahead, and it is most reliable in the first three or four days. Read it from the top down and you will almost always have what you need for Santiago.

What the UV index actually means

The UV index rates the strength of the sun's ultraviolet radiation on a simple scale. Below 3 is low and you can be outside safely without protection. From 3 to 7 is moderate to high, the point at which sunburn becomes likely within an hour, so a hat and sunscreen earn their keep. Above 8 is very high to extreme, and skin can burn in minutes around the middle of the day. The index peaks at solar noon, not at the hottest part of the afternoon, so the safest habit is to check the number rather than judge by the temperature.

Why the overnight low matters as much as the high

Daytime maximums get the headlines, but the overnight minimum shapes how the day actually feels. A cold night means a slow, crisp start and, on clear evenings, the chance of fog or frost before dawn. A mild night means the warmth carries over and the morning is comfortable from the outset. Clear skies let heat escape and push the low down; cloud cover traps it and keeps the night warmer. That is why two days with the same maximum can feel completely different depending on the night that came before.

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Weather data by Open-Meteo. The Daily Santiago is independent and not affiliated with any government weather agency.

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