the effect of creating a relatively fertile catchment area. Climate Under the Köppen climate classification, Kupang has a tropical savanna climate (Aw). Unlike many cities with this climate, Kupang's temperature varies little between the summer season (October to March) and the winter season (April to September). The hottest month is October (with an average temperature of ), while the coolest is July (with an average temperature of ). The city experiences extreme wet and dry seasons, with January being the wettest month (with an average total rainfall of ), while August and September are the driest months (with an average of only of rain in each month). Demographics Because of its status as a provincial capital, Kupang has become a multi-ethnic city and is a popular destination for migration from neighbouring regions. The city's population increased by 31% from 2010 to 2020. In that year, the ratio of males to females in the city was 51 to 50. As with most Indonesian cities, the population is young, with 65% of the city's population classified in the potential productive workforce of people over 15 years of age. The predominant age group is in the range of 20 to 24 years old, which can be attributed to an influx of young migrants from other regions. The population growth in 2020 was approximately 3%. The majority of the city's population identify as Protestant (326,229). Smaller religious groups include Catholic (75,804), Muslim (44,419), Hindu (6,114), and Buddhist (205). Life expectancy in the city is 70 years, which, although slightly below the national level, is higher than the provincial figure. Economy The largest contributor to the local economy is the service sector, which provides 48.29% of the city's gross regional product and provides employment for 79.34% of the city's workforce. Meanwhile, the primary sector (which comprises agriculture and mining) only provides 2.33% of the city's gross regional product. Other significant economic areas include construction (16.29%), transportation (9.42%), finance and insurance (7.38%), and real estate (3.03%). This economic profile significantly differs from that of neighbouring regions, which still rely on agriculture and resource extraction as the primary contributor to their economies. The amount of land used for agriculture in Kupang decreased by 41% from 2018 to 2019, while the industrial sector grew by 11% in the same timeframe. Industrial facilities in the city include three cement plants operated by PT Semen Kupang, which, in total, produce