Click on a day for an hourly weather forecast
The temperatures in Rancagua in January are comfortable with low of 10°C and and high up to 29°C.
The wather in Rancagua in January can vary between cold and nice weather days. Expect a few rainy days but usually not more than 3.
Our weather forecast can give you a great sense of what weather to expect in Rancagua in January 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 |