What clothes should I wear in April-May in Warsaw, Poland?

The weather in Poland is similar to that in northern China. I don't know where your home is. April and May are spring, and it is cooler in the morning and evening. Sometimes noon is the same as summer. You can wear a t-shirt with jeans and a coat. Give you a website of weather forecast, you can look at the current weather: www.t7online.com and then give you a website of Polish Chinese Information Network:/You can search here if you have any questions!