Note: Certification of an interlocutory decision by a trial court allows an appellate court to review the decision and to answer a controlling question of law. Certification is often used in state courts as well as federal courts and, where available, allows a federal court to refer a question of state law to the state's highest court. Certification is also used to refer to a judge's order that allows a suit to be maintained as a class action.
1 The average temperature in Santiago in December is somewhat warm at 19.2 Â°C (66.56 Â°F).  Afternoons can be very hot with average high temperatures reaching 28 Â°C (82.4 Â°F).
Weather in Chile in March 2018. Expect 23Â°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Chile in March. Check more long-term weather averages for Chile in March before you book your next holiday to Chile in 2018. The March weather averages shown below are for Santiago. 1  Chile weather overview. 2  Chile monthly weather. 3  Chile 5-day forecast. 4  Chile holidays. 5  Chile destinations. 6  Chile map. 7  More destinations.