The barrier reef then extends about 13 miles SSE from Fivaku to the S end of a detached reef on which lies the island of Farukolu, with Furnadu on the S part of the reef.
April is warmest with an average temperature of 31.2 °C at noon. January is coldest with an average temperature of 23.8 °C at night. Fivaku has no distinct temperature seasons, the temperature is relatively constant during the year. The temperatures do not differ much between day and night. September is on average the month with most sunshine. Rainfall and other precipitation has no distinct peak month.