Santiago weather in August
August is one of the least pleasant months in Santiago: highs of 16°C (61°F) and about 40 mm (1.6 in) of rain on average. Nights average 3°C (38°F) and cloud cover 72% (NASA POWER, 2001–2025 averages). It is the 4th wettest month of the year and the 3rd coolest. Compared with July, it is warmer and about as wet; September brings highs of 19°C (66°F) and 15 mm (0.6 in) of rain.
Is August a good time to visit Santiago?
least pleasant month Weather score 68/100.
August is one of the least pleasant months for weather in Santiago. For better conditions, consider Oct–Apr.
Does it rain a lot in Santiago in August?
No, it is usually dry: about 40 mm (1.6 in) falls in an average August. It is the 4th wettest month of the year.
How warm is Santiago in August?
Days average 16°C (61°F) and nights 3°C (38°F).
Santiago weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 30°C (85°F) | 14°C (58°F) | 8 mm | 32% | best |
| February | 29°C (83°F) | 14°C (57°F) | 8 mm | 31% | best |
| March | 27°C (80°F) | 12°C (54°F) | 10 mm | 36% | best |
| April | 23°C (73°F) | 9°C (49°F) | 12 mm | 52% | best |
| May | 19°C (66°F) | 6°C (44°F) | 44 mm | 70% | fair |
| June | 15°C (59°F) | 3°C (38°F) | 63 mm | 74% | least pleasant |
| July | 14°C (58°F) | 3°C (37°F) | 47 mm | 74% | least pleasant |
| August | 16°C (61°F) | 3°C (38°F) | 40 mm | 72% | least pleasant |
| September | 19°C (66°F) | 5°C (41°F) | 15 mm | 68% | fair |
| October | 22°C (72°F) | 7°C (45°F) | 12 mm | 64% | best |
| November | 26°C (79°F) | 10°C (50°F) | 9 mm | 48% | best |
| December | 28°C (83°F) | 13°C (55°F) | 7 mm | 37% | best |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months