Santiago is warmest in February, averaging 30° by day and 15° at night. The wettest month is June with 39 mm, and the year brings about 139 mm in total.
Month by month
| Month | High | Low | Rain | Daylight | Good for |
|---|---|---|---|---|---|
| January | 30° | 15° | 16 mm | 14.0 h | Beach weather |
| February | 30° | 15° | 11 mm | 13.2 h | Beach weather |
| March | 29° | 13° | 6 mm | 12.2 h | Beach weather |
| April | 25° | 11° | 3 mm | 11.2 h | Sightseeing |
| May | 21° | 8° | 9 mm | 10.3 h | Sightseeing |
| June | 17° | 4° | 39 mm | 9.8 h | Sightseeing |
| July | 17° | 4° | 19 mm | 10.0 h | Sightseeing |
| August | 18° | 5° | 12 mm | 10.8 h | Sightseeing |
| September | 20° | 6° | 9 mm | 11.8 h | Sightseeing |
| October | 24° | 7° | 6 mm | 12.9 h | Sightseeing |
| November | 27° | 11° | 6 mm | 13.8 h | Beach weather |
| December | 29° | 13° | 3 mm | 14.2 h | Beach weather |
High and low are average daily maximum and minimum, rain is typical monthly total, daylight is the hours between sunrise and sunset mid-month. Climate normals from NASA POWER — averages, not promises.
When to go
Beach weather: January, February, March, November and December — highs around 29°, nights no colder than 11°, and at most 16 mm of rain in a month.
Walking the city: April, May, June, July, August, September and October — highs of 17–25° and no more than 39 mm of rain a month.