Overview: BelgiumBelgium is a region with a mild climate. The day temperatures range from 6 °C (43 °F) in January to 22 °C (72 °F) in July. The driest month is April with just 10 days of rain, on the contrary, the month when it rains the most is November with 14 days of rain. The highest night temperatures could be experienced in August with 14 °C (58 °F), the lowest in February with 2 °C (35 °F). The highest sea temperatures in Belgium are in August with 19 °C (65 °F) and the lowest in February with 6 °C (42 °F).