Cloudy and rainy days, brought by Atlantic fronts, can occur in Belgium even in this season. In inland areas, the weather in summer is slightly warmer: in Brussels, the daily average in July is about 18.5 °C (65.5 °F), with highs about 23.5 °C (74 °F), but here too, hot days are rare. The rains are more frequent because of the higher chance ...