Heiloo Weather in May

May in Heiloo averages 16°C (61°F) during the day and 10°C (50°F) at night. Quite a bit of rainfall is typical this month, with around 60 mm (2.4 in) on average. An umbrella is a good idea.

Rainfall in Heiloo in May

Typically around 14 days of rainfall are expected, averaging 60 mm (2.4 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Heiloo in May

In May, expect moderate temperatures in Heiloo, with highs of 16°C (61°F) and lows of 10°C (50°F) at night. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to around 10°C (50°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Should you favor a climate that's both dry and comfortably warm, July and August typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.