<P> The lagoon (Te Namo in Tuvaluan) of Funafuti atoll has a north - south length of 24.5 km, and east - west 17.5 km, with an area of 275 km2, making it by far the largest lagoon of Tuvalu . It is up to 52 metres deep, but has several submerged rocks and reefs that are as close as 6 metres to the surface . </P> <P> Funafuti features a tropical rainforest climate under the Köppen climate classification . The town does not have a dry season and in truth observes an extraordinary amount of rainfall throughout the year . On average, roughly 3,500 millimetres (140 in) of precipitation falls on the town annually and in no month (on average) does less than 200 millimetres (7.9 in) of rain fall on Funafuti . As is commonplace with many areas with a tropical rainforest climate, there is little variation in temperature during the year, with average daily temperatures hovering around 28 ° C (82 ° F) throughout the year . </P> <Table> <Tr> <Th_colspan="14"> hide Climate data for Funafuti 1981--2000 for temperature mean; 1936--2000 for temperature extremes; 1951--1990 for average precipitation; 1947--1990 for average precipitation days; 1961--1990 for average relative humidity; 1978--1990 for mean daily sunshine hours </Th> </Tr> <Tr> <Th> Month </Th> <Th> Jan </Th> <Th> Feb </Th> <Th> Mar </Th> <Th> Apr </Th> <Th> May </Th> <Th> Jun </Th> <Th> Jul </Th> <Th> Aug </Th> <Th> Sep </Th> <Th> Oct </Th> <Th> Nov </Th> <Th> Dec </Th> <Th> Year </Th> </Tr> <Tr> <Th> Record high ° C (° F) </Th> <Td> 33.8 (92.8) </Td> <Td> 34.4 (93.9) </Td> <Td> 34.4 (93.9) </Td> <Td> 33.2 (91.8) </Td> <Td> 33.9 (93) </Td> <Td> 33.9 (93) </Td> <Td> 32.8 (91) </Td> <Td> 32.9 (91.2) </Td> <Td> 32.8 (91) </Td> <Td> 34.4 (93.9) </Td> <Td> 33.9 (93) </Td> <Td> 33.9 (93) </Td> <Td> 34.4 (93.9) </Td> </Tr> <Tr> <Th> Average high ° C (° F) </Th> <Td> 30.7 (87.3) </Td> <Td> 30.8 (87.4) </Td> <Td> 30.6 (87.1) </Td> <Td> 31.0 (87.8) </Td> <Td> 30.9 (87.6) </Td> <Td> 30.6 (87.1) </Td> <Td> 30.4 (86.7) </Td> <Td> 30.4 (86.7) </Td> <Td> 30.7 (87.3) </Td> <Td> 31.0 (87.8) </Td> <Td> 31.2 (88.2) </Td> <Td> 31.0 (87.8) </Td> <Td> 30.8 (87.4) </Td> </Tr> <Tr> <Th> Daily mean ° C (° F) </Th> <Td> 28.2 (82.8) </Td> <Td> 28.1 (82.6) </Td> <Td> 28.1 (82.6) </Td> <Td> 28.2 (82.8) </Td> <Td> 28.4 (83.1) </Td> <Td> 28.3 (82.9) </Td> <Td> 28.1 (82.6) </Td> <Td> 28.1 (82.6) </Td> <Td> 28.2 (82.8) </Td> <Td> 28.2 (82.8) </Td> <Td> 28.4 (83.1) </Td> <Td> 28.3 (82.9) </Td> <Td> 28.2 (82.8) </Td> </Tr> <Tr> <Th> Average low ° C (° F) </Th> <Td> 25.5 (77.9) </Td> <Td> 25.3 (77.5) </Td> <Td> 25.4 (77.7) </Td> <Td> 25.7 (78.3) </Td> <Td> 25.8 (78.4) </Td> <Td> 25.9 (78.6) </Td> <Td> 25.7 (78.3) </Td> <Td> 25.8 (78.4) </Td> <Td> 25.8 (78.4) </Td> <Td> 25.7 (78.3) </Td> <Td> 25.8 (78.4) </Td> <Td> 25.7 (78.3) </Td> <Td> 25.8 (78.4) </Td> </Tr> <Tr> <Th> Record low ° C (° F) </Th> <Td> 22.0 (71.6) </Td> <Td> 22.2 (72) </Td> <Td> 22.8 (73) </Td> <Td> 23.0 (73.4) </Td> <Td> 20.5 (68.9) </Td> <Td> 23.0 (73.4) </Td> <Td> 21.0 (69.8) </Td> <Td> 16.1 (61) </Td> <Td> 20.0 (68) </Td> <Td> 21.0 (69.8) </Td> <Td> 22.8 (73) </Td> <Td> 22.8 (73) </Td> <Td> 16.1 (61) </Td> </Tr> <Tr> <Th> Average precipitation mm (inches) </Th> <Td> 413.7 (16.287) </Td> <Td> 360.6 (14.197) </Td> <Td> 324.3 (12.768) </Td> <Td> 255.8 (10.071) </Td> <Td> 259.8 (10.228) </Td> <Td> 216.6 (8.528) </Td> <Td> 253.1 (9.965) </Td> <Td> 275.9 (10.862) </Td> <Td> 217.5 (8.563) </Td> <Td> 266.5 (10.492) </Td> <Td> 275.9 (10.862) </Td> <Td> 393.9 (15.508) </Td> <Td> 3,512.6 (138.291) </Td> </Tr> <Tr> <Th> Average precipitation days (≥ 1.0 mm) </Th> <Td> 20 </Td> <Td> 19 </Td> <Td> 20 </Td> <Td> 19 </Td> <Td> 18 </Td> <Td> 19 </Td> <Td> 19 </Td> <Td> 18 </Td> <Td> 16 </Td> <Td> 18 </Td> <Td> 17 </Td> <Td> 19 </Td> <Td> 223 </Td> </Tr> <Tr> <Th> Average relative humidity (%) </Th> <Td> 82 </Td> <Td> 82 </Td> <Td> 82 </Td> <Td> 82 </Td> <Td> 82 </Td> <Td> 82 </Td> <Td> 83 </Td> <Td> 82 </Td> <Td> 81 </Td> <Td> 81 </Td> <Td> 80 </Td> <Td> 81 </Td> <Td> 82 </Td> </Tr> <Tr> <Th> Mean monthly sunshine hours </Th> <Td> 179.8 </Td> <Td> 161.0 </Td> <Td> 186.0 </Td> <Td> 201.0 </Td> <Td> 195.3 </Td> <Td> 201.0 </Td> <Td> 195.3 </Td> <Td> 220.1 </Td> <Td> 210.0 </Td> <Td> 232.5 </Td> <Td> 189.0 </Td> <Td> 176.7 </Td> <Td> 2,347.7 </Td> </Tr> <Tr> <Th> Mean daily sunshine hours </Th> <Td> 5.8 </Td> <Td> 5.7 </Td> <Td> 6.0 </Td> <Td> 6.7 </Td> <Td> 6.3 </Td> <Td> 6.7 </Td> <Td> 6.3 </Td> <Td> 7.1 </Td> <Td> 7.0 </Td> <Td> 7.5 </Td> <Td> 6.3 </Td> <Td> 5.7 </Td> <Td> 6.4 </Td> </Tr> <Tr> <Td_colspan="14"> Source: Deutscher Wetterdienst </Td> </Tr> </Table> <Tr> <Th_colspan="14"> hide Climate data for Funafuti 1981--2000 for temperature mean; 1936--2000 for temperature extremes; 1951--1990 for average precipitation; 1947--1990 for average precipitation days; 1961--1990 for average relative humidity; 1978--1990 for mean daily sunshine hours </Th> </Tr>

Funafuti is the capital city of which of the following countries