Click on a day for an hourly weather forecast
The weather in Rancagua in October is very cold with temperatures between 3°C and 20°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Rancagua during the month of October. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Rancagua in October 2026.
If you’re planning to visit Rancagua in the near future, we highly recommend that you review the 14 day weather forecast for Rancagua before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 29° / 10° | 1 | 30 | 0 | 13 mm | Good | Rancagua in January |
| February | 28° / 10° | 1 | 27 | 0 | 8 mm | Perfect | Rancagua in February |
| March | 27° / 9° | 1 | 31 | 0 | 7 mm | Perfect | Rancagua in March |
| April | 23° / 7° | 2 | 29 | 0 | 36 mm | Perfect | Rancagua in April |
| May | 18° / 4° | 4 | 27 | 0 | 111 mm | Good | Rancagua in May |
| June | 13° / 1° | 6 | 24 | 0 | 222 mm | Ok | Rancagua in June |
| July | 12° / 0° | 5 | 26 | 0 | 152 mm | Ok | Rancagua in July |
| August | 14° / 0° | 6 | 25 | 0 | 164 mm | Good | Rancagua in August |
| September | 17° / 1° | 4 | 26 | 0 | 87 mm | Good | Rancagua in September |
| October | 20° / 3° | 3 | 28 | 0 | 72 mm | Good | Rancagua in October |
| November | 24° / 6° | 2 | 28 | 0 | 27 mm | Perfect | Rancagua in November |
| December | 27° / 8° | 2 | 29 | 0 | 25 mm | Perfect | Rancagua in December |