Travel time: Year-round
Keukenhof, located in the heart of the Dutch Bollenstreek (bulb region) in Lisse, experiences a temperate maritime climate heavily dictated by the North Sea, just six miles to the west. This proximity ensures that extreme heat and bitter cold are rare, but it also creates a landscape where the weather is in constant motion. Visitors should anticipate a climate characterized by high humidity, frequent breezes, and rapidly changing skies.
This is the only time Keukenhof is open to the public, and the weather is famously fickle. In early spring (late March), the air is crisp, with daytime highs around 50°F (10°C). By May, temperatures often climb to 63°F (17°C). However, the "Dutch Spring Surprise" can see temperatures swing from 40°F (4°C) to 75°F (24°C) within 48 hours. Rainfall is most frequent as light drizzles rather than heavy storms, providing the vital moisture needed for the bulbs.
While the gardens are closed to visitors, the region stays vibrant. Summer is comfortable, with average highs of 68°F–72°F (20°C–22°C). This is statistically the sunniest part of the year, though the high humidity (averaging 70-75%) can make the air feel thicker than the thermometer suggests. Rainfall actually peaks in August due to localized convective showers.
As gardeners begin planting millions of bulbs, the weather turns windier and wetter. Temperatures drop steadily from 65°F (18°C) in September to 50°F (10°C) in November. This season introduces the najaarsstormen (autumn storms), where gale-force winds from the Atlantic sweep across the flat polders.
Winters are long, damp, and grey. Temperatures hover between 34°F (1°C) and 44°F (7°C). While heavy snow is rare, the high humidity combined with persistent winds creates a "penetrating cold" that feels significantly lower than the actual temperature. Frost is common, which is essential for certain bulb varieties to enter their required dormancy period.
A typical day at Keukenhof often follows a "four seasons in one day" pattern. Mornings frequently begin with North Sea mist or low-hanging fog that burns off by midday. Because the region is reclaimed land (polders) and sits below sea level, there are no hills to break the wind. The vast, flat landscape allows wind to accelerate, making the gardens feel 3-5 degrees cooler than nearby sheltered urban centers like Haarlem or Leiden.