This line chart shows how average monthly temperatures vary across five major cities—New York, London, Tokyo, Sydney, and Cape Town—during the years 2020 to 2023. These cities are located near significant rivers (e.g., the Hudson, Thames, Sumida, Parramatta, and Liesbeek), which often influence local microclimates and urban heat distribution. The selected months (January, April, July, October) represent different seasons, offering a geographic comparison across hemispheres. The chart also includes computed averages for summer and winter, highlighting the effect of both seasonal change and river proximity on urban temperatures.