What to wear in Amsterdam in end of June [duplicate]

Spring in Amsterdam is generally cooler than it is in the south of Europe but it does not mean that the weather is really cold. The thing is that you cannot rule out a few weeks of 15ºC weather, wind or rain, especially in April-May, so you might want to pack something like a light jacket to be prepared. But you can expect plenty of warm weather as well.

Case in point: This week is very hot, close to 30ºC and there is a warning out, while the forecast for next week is rainy weather, 20ºC during the day and as little as 15ºC during the night.

it is always a good idea to have a sweater (or a vest...) with you in the evening if you are sensitive to cold.

Depending on what you intend to do in the evening ( eating out, going to a club or bar) maybe you should change to pants.

You should wear clothes. But, even that is not a definite.

You should already be able to get an idea of the weather in late June, now, by looking at the forecast.

That said, Dutch weather is a tad unpredictable. In June, it can be 35 degrees celsius during the day and under 10 degrees at night. Check out the climate chart on the Wikipedia page for the Netherlands.