Both the Netherlands and New Zealand are located near a sea or ocean, this gives them both a sea climate near the coast, with moderately warm summers and mild winters. The more inland part of the Netherlands experiences a few degrees warmer temperatures in the summer and it can get a little colder there in wintertime as well. All of the country gets plenty of rain year round and can have a little bit of snow in the winter. If the temperatures get quite high in summer, close to, or higher than 30 degrees celsius, thunder and lightning often follow to cool it all down again.
New Zealand has many different climates and weather types next to their sea climate. The southern part of the South Island is a cold rainforest area which gets more rain than the Amazon does a year. The Alps on the South Island will get lots of snow in winter time, sometimes causing roads to close. There are also parts that hardly get any rain, and seem to be more like a desert with hot days and cold nights. The northern part of the North Island is almost tropical with very warm summers and mild (wet) winters. Whatever part of New Zealand you’re in though, the sun is always warm and, especially in summer, you need to put on lots of sunscreen to prevent sunburn due to the bright sun here. The hole in the ozone layer is no longer a hole, but it is not fully recovered yet either, so the sun is more dangerous in New Zealand than in the Netherlands.