I always get this terrible ear-ache when fighting this wind on my bike. Another thing we have quite a lot of, is rain. You really need a water-proof jacket, as the combination of rain and wind makes an umbrella a bit impractical, except for umbrella salespeople. Nonetheless, many people try protecting themselves with one anyway. Holland has a bit of a reputation for rain, but it is somewhat exaggerated.
Summers are moderate, as are the winters.
Summers sometimes have days where the mercury reaches 30 degrees Celsius, but 20-25 degrees is more common. A good summer has periods of about four days of great weather, and then one or two days of thunderstorms. The air freshens up after that, unlike other parts of the world, which then resemble saunas. You have equal chances of both types. Winters are sometimes pretty cold, with a bit of snow and all our water ways frozen over and people skating everywhere.