Belgium Weather & Climate: Monthly Averages

Belgium has a temperate oceanic climate, primarily due to the influence of the North Sea. The sea water has a cooling effect on the country's weather during the summer months, while in winter, it prevents temperatures from dropping too drastically.

In general, this results in mild winters and cool summers, with an average annual temperature of 10°C (50°F). During the warmest month, July, the average temperature in Belgium ranges from moderate in Botrange at 17°C (63°F) to high in Antwerp at 24°C (75°F). Minimum nighttime temperatures generally drop to 14°C (57°F) in Antwerp and 9°C (48°F) in Botrange.

Summer Weather

In the summer, Belgium may experience thunderstorms moving north from France. If a high-pressure system arrives from the south, there is a chance for wonderful warm summer weather in Belgium.

Winter Weather

During winter, significant climate differences can be observed between the coastal region and the hills of the Ardennes. While temperatures along the coast remain well above freezing, the Ardennes can experience freezing temperatures and snowfall at the same time. In January, the coldest month in Belgium, the average temperature ranges from very low in Botrange at 0°C (32°F) to low in Antwerp at 7°C (45°F). Minimum nighttime temperatures generally drop to 2°C (36°F) in Antwerp and -4°C (25°F) in Botrange.

Best Time to Visit Belgium

The best time to visit Belgium is generally from May until the end of September. However, city trips can be enjoyed year-round.