Olivia, in Flacq, Mauritius, is home to roughly 4,000 people in the Indian/Mauritius time zone at 20.3°S latitude.
Recent weather here gives a sense of typical conditions: in 2025, Olivia recorded a mean annual temperature of 74°F, ranging from 62°F lows in September to 90°F highs in March, with about 64 inches of precipitation across the year.