In general the best time to visit Santiago is probably January, February, when the weather is usually great. The hottest months are July, August, September, while the coldest months are January, February, March.
The best time to visit may differ depending on what you are looking for:
The best time for a sunbathing holiday is July, August, September. Average maximum temperatures are up to +32°C in August and it has 3 sunny days on average.
In general, it’s pleasant to walk and do outdoor activities during January - December.
If you want to avoid wet weather, then your choice is June, September, October with the lowest chance of rain.
Average weather in Santiago in different months
This is the average weather in Santiago for each month based on historic data:
In January, February the weather is great. There are an average of 15 sunny days in January and the temperature ranges from +20°C to +29°C.
March, April, December usually has good weather. Average maximum temperature reaches +30°C during April.
In May, June, July, August, September, October, November the weather is average. Expect around 144 rainy days, and the precipitation amounts to approximately 104 mm in September.
Climate in Santiago
Here is the detailed breakdown of the climate in Santiago for each month:
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Maximum Temperature
+33°C
+33°C
+33°C
+34°C
+35°C
+36°C
+36°C
+36°C
+36°C
+33°C
+33°C
+33°C
Average Maximum Temperature
+29°C
+29°C
+29°C
+30°C
+30°C
+31°C
+32°C
+32°C
+31°C
+30°C
+30°C
+29°C
Minimum Temperature
+14°C
+15°C
+15°C
+16°C
+16°C
+22°C
+22°C
+22°C
+22°C
+20°C
+16°C
+14°C
Avg. water temperature
-
-
-
-
-
-
-
-
-
-
-
-
Humidity, %
74
72
72
74
77
78
75
76
78
80
77
75
Rain, mm
10
13
27
50
101
81
52
76
104
99
56
19
Snow, mm
0
0
0
0
0
0
0
0
0
0
0
0
Average wind speed, m/s
2
2
2
2
2
1
2
2
1
1
2
2
Sunny Days
15
14
11
7
3
2
3
3
1
2
7
13
Cloud Days
7
5
6
5
4
5
6
4
3
3
6
8
Rainy Days
9
9
14
18
23
20
19
21
22
23
16
10
Snowy Days
0
0
0
0
0
0
0
0
0
0
0
0
Average Temperature
Here are the average maximum and minimum temperatures in Santiago during the whole year:
The hottest month in Santiago is August with average maximum temperature going up to +32°C. The coldest month is January with the lowest temperatures of +20°C.
Humidity
The temperature feels different depending on humidity. Here is how humidity in Santiago looks throughout the year, in %:
The most humid month in Santiago is October with average humidity going up to 80%. The least humid month is February with an average humidity of 72%.
Rain
Amount of rainfall in mm. in Santiago during the whole year based on historical data:
The sunniest and driest month is January with approximately 15 sunny days and a total precipitation of around 10 mm. The rainiest and wettest month is September with approximately 22 rainy days and 104 mm of total precipitation.
FAQ
Frequently asked questions about the weather in Santiago:
What is the hottest month in Santiago?
The hottest month in Santiago is August with average maximum temperature of +32°C.
What is the coldest month in Santiago?
The coldest month in Santiago is January with minimum temperatures of +20°C.
Is Santiago worth visiting in winter?
Winter in Santiago usually has great weather. The best month is probably August with +32°C and 3 sunny days.
When does it rain the least in Santiago?
if you're looking to visit Santiago when it rains the least, you should plan your trip for September, May, October. During this time, rainfall is rare with the driest month being January with only 10 mm of rain.
For this page, we’ve looked at the typical weather in Santiago, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.