Click on a day for an hourly weather forecast
The weather in Osorno in August is very cold with temperatures between 3°C and 11°C, warm clothes are a must.
You can expect rain for roughly half of the month of August in Osorno. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Osorno in August 2025.
If you’re planning to visit Osorno in the near future, we highly recommend that you review the 14 day weather forecast for Osorno before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 23° / 9° | 3 | 28 | 0 | 62 mm | Perfect | Osorno in January |
| February | 23° / 9° | 4 | 24 | 0 | 88 mm | Perfect | Osorno in February |
| March | 21° / 8° | 5 | 26 | 0 | 100 mm | Good | Osorno in March |
| April | 17° / 7° | 7 | 23 | 0 | 138 mm | Ok | Osorno in April |
| May | 13° / 6° | 11 | 20 | 0 | 270 mm | Bad | Osorno in May |
| June | 10° / 4° | 14 | 16 | 0 | 372 mm | Bad | Osorno in June |
| July | 10° / 3° | 14 | 17 | 0 | 320 mm | Bad | Osorno in July |
| August | 11° / 3° | 14 | 17 | 0 | 373 mm | Bad | Osorno in August |
| September | 13° / 3° | 9 | 21 | 0 | 187 mm | Bad | Osorno in September |
| October | 16° / 4° | 8 | 23 | 0 | 149 mm | Ok | Osorno in October |
| November | 18° / 6° | 6 | 24 | 0 | 105 mm | Good | Osorno in November |
| December | 21° / 7° | 5 | 26 | 0 | 105 mm | Good | Osorno in December |