Kiribati falls under the dry maritime climate type, although there are variations between and within its island groups, especially in precipitation levels. Annual rainfall varies between 1,000-3,000 mm per year across the country, with the northern parts of the Gilbert and Line groups typically receiving more rain than the Phoenix group. The country is subject to the effects of El Niño, which typically brings heavy rain to Kiribati, and La Niña, which coincides with drought periods for Kiribati. Rainfall is highest between March and May, and lowest between August and October. There is almost no seasonal variation in temperature, with average monthly temperatures falling between 27°C and 28°C during every month of the year.
- Annual rainfall has increased significantly between 1946 and 2013 in Kiritimati island (in the northern part of the Line islands). In the capital, Tarawa, there has been no significant change in annual precipitation over the same period (Kiribati Meteorology Service & PACCSAP, 2015).
- Kiribati has been affected by severe droughts at sporadic intervals, with annual rainfall falling below 750mm in 1971, 1985, 1998 and 1999 (Republic of Kiribati, 2015).
This section provides the options to visualize historical climate data for different timeframes via map and annual cycle chart.