Weather
Amsterdam
Overall Amsterdam has a moderate climate. The winter can be chilly but usually not too extreme. The temperature in the winter ranges 32 F (0 C)–45 F (7 C). In the summer, Amsterdam typically receives 200 hours of sunshine. The average temperature for July ranges 60 F (16 C)–70 F (21 C).
The heaviest tourist season in Amsterdam is when the weather is the sunniest in July and August. Off-season traveling, when the deals are the best, can also provide great weather for touring in Amsterdam. The bulb fields near Amsterdam are another perk of skipping the July and August crowds These fields reach their peak blooms in mid-April and continue to burst with color until mid-May.
If cultural festivals are your fancy, and you don’t mind some light rain in the fall, then a tour between September and May offers many festivities that show Amsterdam in full swing. The average rainfall in the fall months ranges from three to four inches each month, so be sure to prepare yourself with lightweight rainwear.
Luxembourg
Nestled in between Belgium and Germany, this tiny country has a favorable climate. The average temperature in the summer months is 63 F (17 C). The average annual rainfall is 75mm, primarily in the summer. The temperature in the winter averages 32 F (0 C). Like most European countries, its tourist season, and temperature, peaks between July and August. The season for travel to Luxembourg is best from mid-April to mid-October.
Brussels
In general, Brussels has a temperate climate. The average high temperature in the summer months is 80 F (27 C) and the winter average is 45 F (7 C). Rain appears sporadically in Belgium. Brussels annual rainfall averages 32 inches. Lightweight rainwear is a good idea for travel in Brussels.
The tourist season is between May and September when Brussels has its best weather. Most visitors avoid travel to Brussels in the winter. If you prefer to take advantage of the drop in crowds, museums can be a great escape from winter weather and shorter daylight hours.