Rancagua Weather in March
What's the weather like in Rancagua (O'Higgins) in March 2026?
The climate in Rancagua during March can be summarized as mild and very dry.
March is in the fall / autumn in Rancagua and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 23°C (73°F), whilst at night 11°C (51°F) is normal.
| Daytime temperature | 22.8°C 73°F |
|---|---|
| Nightly temperature | 10.6°C 51.1°F |
| Average temperature | 16.7°C 62.1°F |
| Daily sunshine | 9.5 hrs |
| Avg rainfall | 8 mm 0.3 ins |
| Rainy days | 4 days |
| Sea temperature | 17.4°C 63.2°F |
| Humidity | 68% |
| Windspeed | 6.1kph 4 mph |
On average March is the 4th driest month of the year in Rancagua with around 8mm 0.3 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 9.5 hours of sunshine per day.
March temperatures in Rancagua
March rainfall
March hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Rancagua in March 2025.
Other monthly averages
Rancagua weather stats
| Hottest month: | January | 26.5°C 79.7°F |
|---|---|---|
| Driest month: | February | 1mm 0ins |
| Sunniest month: | January | 11.5hrs |
| Coldest month: | July | 12.5°C 54.5°F |
| Wettest month: | July | 126mm 5ins |
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