sSummer in iIstanbul

tThe weather is very hot in iIstanbul in the summer. sSummer is usually very humid. sSo we that people in iIstanbul swim in the sea.(?)  <em>(Maybe you can meant to say this? Therefore many people in Istanbul like to swim in the sea to get cool.)</em>

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Istanbul is a proper noun and should be capitalized

Good work!

Summer in Istanbul

The weather is very hot in Istanbul in summer, it is usually also very humid. summer is usually very humid. So, the residents of we that people in Istanbul swim in the sea.