Weather in Santiago in July

Prime time. July is about as good as Santiago gets. Highs average 19.4 °C, lows 7.4 °C, and rain falls on 6 days — nothing in the month is working against you.

July ranks 7 of 12 in Santiago: past the worst of the year but short of September, which is the month to book if the dates are open.

Rain falls on only 6 days, so an itinerary with no wet-weather fallback is a reasonable risk. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average July reaches 30 °C. Across the twenty years measured, the hottest July day reached 31.9 °C and the coldest night fell to -1.1 °C, and the wettest single day dropped 47 mm — roughly 100% of the month's rain in one day.

This is the volatile part. July rainfall has ranged from 2 mm to 204 mm across the twenty years measured — a 202 mm spread around an average of 47 mm. The average is real but almost no individual July looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 5.3 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 53%.

How July sits in the year

Temperatures hold steady either side: 20.2 °C in June, 19.4 here, 21 in August. Nothing about the timing within the month matters much.

Daylight in July

July sits at the dark end of Santiago's year — 10.1 hours of daylight against 14.3 at midsummer, gaining 0.5 hours across the month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.

An inland climate

With no coast nearby, the year swings a fair way — 26.3 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead. If the dates are flexible, November is the trade worth considering — 12 points weaker on weather, and materially quieter.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

July in Santiago versus nearby

If Santiago is one option among several, the nearby comparison is worth making. Córdoba is a better bet in July — within a degree on temperature, 5 days less rain. San Miguel de Tucumán is a better bet in July — 2.7 °C warmer, 5 days less rain.

So: July works, with September the better month by 9 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Santiago

See all twelve months in Santiago, or where else to go in July.