Herstal Weather in May

May in Herstal sees daytime temperatures around 19°C (66°F) and lows of 9°C (48°F) at night. With around 72 mm (2.8 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Herstal in May

This month experiences about 17 days of rain according to historical data, averaging 72 mm (2.8 in). Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.

Temperature in Herstal in May

If you're visiting Herstal in May, expect highs of 19°C (66°F) and overnight lows around 9°C (48°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With lows around 9°C (48°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Herstal in May

There are approximately 210 hours of sunshine this month, resulting in mostly clear days.

If you prefer enjoying temperate temperatures and rain-free days, June, July, August and September typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.