Santiago is at its most pleasant from late October to mid January, and again from late February to early May. For sun, aim for mid and late February; for walking, go from mid March to early July.
When to go five ratings · thirty-six ten-day sections · click a cell to read it
The sun season here falls in mid and late February. It peaks in mid February, at 70. The weakest stretch is from late April to mid October, when it drops to 0, mostly because it is too cool. The clearest skies come in December, when the sky is typically 21% covered at midday (mostly clear).
For being outside, go from late October to mid January, with a second spell from late February to early May. It peaks in mid March, at 86. Avoid early and mid July for this: it falls to 9, mostly because it is too cold.
The walking season here runs from mid March to early July, with a second spell from late July to early November. It peaks in late May, at 88. The weakest stretch is in mid and late February, when it drops to 18, mostly because it is too warm.
The year, measured
The average temperature in Santiago over the whole year is 15°C. February is the hottest month, with highs of about 26°C; July is the coldest, with lows of about 5°C. Santiago has no sharply defined rainy season: the chance of rain on a given day runs from 0% in February, the driest month, to 8% in June, the wettest. Winds in Santiago are highest in December, averaging 2.8 m/s (10 km/h), and lightest in May, at 1.5 m/s (5 km/h). The prevailing wind is from the SW. The clearest skies in Santiago come in December, when the sky is typically 18% covered; June is the cloudiest month, at 56%.
Month by month Santiago climate by month: average temperatures year round · click a month to read it
| Month | High | Low | Feels like | Chance of rain | Cloud | Wind | Being outside | Sun | Walking |
|---|---|---|---|---|---|---|---|---|---|
| January | 25°C | 17°C | 22°C | 1% | 29% | 2.5 m/s | 64 | 34 | 54 |
| February | 26°C | 17°C | 25°C | 0% | 19% | 2.3 m/s | 65 | 52 | 32 |
| March | 24°C | 15°C | 22°C | 4% | 33% | 2.4 m/s | 84 | 28 | 54 |
| April | 20°C | 10°C | 18°C | 2% | 37% | 2.0 m/s | 80 | 7 | 82 |
| May | 15°C | 8°C | 13°C | 6% | 56% | 1.5 m/s | 41 | 1 | 84 |
| June | 15°C | 6°C | 12°C | 8% | 56% | 1.5 m/s | 30 | 0 | 84 |
| July | 12°C | 5°C | 9°C | 5% | 53% | 1.7 m/s | 18 | 0 | 67 |
| August | 14°C | 6°C | 11°C | 3% | 52% | 2.0 m/s | 22 | 1 | 80 |
| September | 17°C | 8°C | 14°C | 3% | 52% | 2.0 m/s | 50 | 2 | 85 |
| October | 19°C | 10°C | 16°C | 2% | 47% | 2.1 m/s | 62 | 12 | 74 |
| November | 23°C | 13°C | 20°C | 1% | 32% | 2.6 m/s | 78 | 25 | 62 |
| December | 25°C | 15°C | 21°C | 0% | 18% | 2.8 m/s | 72 | 39 | 51 |
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Santiago weather by season
Year round, Santiago has days of about 12°C at their warmest in July, its coolest month, and 26°C in February, its warmest; the coolest hours of the day run from 5°C to 17°C through the year, and the average temperature over the year is 15°C around the clock. Rain is most likely around June and least likely around February. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Santiago weather in winterJune to August
Winter in Santiago has typical daily highs of about 14°C and lows of about 5°C, with a 6% chance of rain on a given day.
Santiago weather in springSeptember to November
Spring in Santiago has typical daily highs of about 19°C and lows of about 10°C, with a 2% chance of rain on a given day.
Santiago weather in summerDecember to February
Summer in Santiago has typical daily highs of about 25°C and lows of about 16°C, with a 1% chance of rain on a given day.
Santiago weather in autumnMarch to May
Autumn in Santiago has typical daily highs of about 20°C and lows of about 11°C, with a 4% chance of rain on a given day.
When is the rainy season in Santiago?
Santiago has no sharply defined rainy season: the chance of rain on a given day runs from 0% in February, the driest month, to 8% in June, the wettest.
What time of year is Santiago windiest?
Winds in Santiago are highest in December, averaging 2.8 m/s (10 km/h), and lightest in May, at 1.5 m/s (5 km/h). The prevailing wind is from the SW.
What is the average temperature in Santiago year round?
The average temperature in Santiago over the whole year is 15°C. February is the hottest month, with highs of about 26°C; July is the coldest, with lows of about 5°C.
Where to go instead in early July, the weakest time here for being outside
How this is worked out
Every figure is a decade of weather-station observations blended into one typical year, in ten-day sections. The ratings, the chart and the feels-like column are read at midday local solar time. Being outside is the Easy outdoors rating, Sun is Sunbathing and Walking is Active outdoors, each out of 100: Good from 55, Ideal from 80. They describe what a time of year is usually like here, not a forecast. The dotted links open the map at that time of year; set its time of day to midday to see these numbers.