Delft, in South Holland, features a temperate maritime climate with mild summers, cool and damp winters, and rainfall throughout the year. Seasonal changes are pronounced, with long, sunny days in summer and short, grey days in winter. The city’s weather is famously changeable, so visitors should be prepared for both rain and sunshine at any time.
The best times to travel section shows how the months compare for a visit, so you can find the time of year that fits what you want to do.
Background colours of the months:
The colour shows the typical temperature: yellow (hot), green (mild) and blue (cold). How strong the colour is shows the travel season: full colour means high season, soft colour means shoulder season and soft-striped means off season.
Weather symbols:
Each month has one symbol showing what the weather is typically like, such as hot and sunny, freezing or a rainy or snowy season. Use them to quickly spot months that match the weather you want, or to avoid the ones that don't.
Crowdedness:
The people icon shows how busy the place usually is. The more people, the more crowded it gets.
Additional notes:
The grey info boxes point out special things worth knowing, like recurring weather issues or seasonal events.
Delft’s climate is shaped by its proximity to the North Sea, resulting in moderate temperatures and frequent rainfall. Summers (June–August) are mild and comfortable, with average highs of 22–23°C and lows around 13–15°C. Heatwaves above 30°C are rare but possible. The sunniest months are May to July, with up to 8 hours of sunshine per day and daylight stretching from 5:30 to 22:00. Rain is common, with August being the wettest month (up to 86 mm over 14–17 days), but showers are typically brief and interspersed with sunny intervals.
Winters (December–February) are chilly, damp, and windy, with average highs of 6–8°C and lows near 2–4°C. Snow is possible but rarely persistent, and frost can occur on cold nights. December and January are the least sunny months, with just 1.8–2 hours of sunshine per day and frequent overcast skies. Rain falls steadily throughout the year, with annual precipitation around 800–875 mm. Humidity is generally high, peaking in late autumn and winter (up to 89%). Winds average 15–20 km/h, often stronger during storms. Spring and autumn are transitional, with spring warming from 10°C in March to 17°C in May, and autumn cooling from 19°C in September to 8°C in November. The weather can change quickly, so layers and rain gear are always advisable.
| Average climate data for Delft, Netherlands | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average maximum temperature (°C) | 6 | 6 | 9 | 13 | 15 | 18 | 20 | 21 | 18 | 15 | 10 | 8 | 21 |
| Average minimum temperature (°C) | 3 | 3 | 4 | 7 | 10 | 13 | 15 | 16 | 14 | 11 | 8 | 5 | 3 |
| Average precipitation (mm) | 49 | 42 | 38 | 18 | 30 | 43 | 49 | 66 | 51 | 54 | 53 | 60 | 554 |
| Average rainfall days (days) | 18 | 14 | 14 | 12 | 14 | 14 | 18 | 20 | 17 | 18 | 19 | 20 | 198 |
| Average snowfall (mm) | 13 | 24 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 11 | 55 |
| Average snowfall days (days) | 3 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 11 |
| Average relative humidity (%) | 84 | 80 | 79 | 75 | 76 | 78 | 77 | 75 | 77 | 78 | 81 | 84 | 79 |
| Average wind speed (km/h) | 23 | 23 | 20 | 17 | 17 | 16 | 16 | 16 | 18 | 20 | 22 | 25 | 19 |
| Average daily daylight hours (h) | 8 | 10 | 11 | 13 | 15 | 16 | 16 | 14 | 12 | 10 | 8 | 7 | 12 |
| Average daily sunshine hours (h) | 3 | 4 | 6 | 8 | 8 | 10 | 10 | 9 | 7 | 5 | 4 | 3 | 6 |
| Average cloud coverage (%) | 64 | 59 | 51 | 38 | 41 | 40 | 39 | 38 | 45 | 53 | 60 | 65 | 49 |
| Average UV index | 2 | 2 | 3 | 3 | 4 | 5 | 5 | 5 | 4 | 4 | 2 | 2 | 3 |
The best time to visit Delft is from late May to September, when temperatures are mild (17–23°C), days are long, and rainfall is moderate. These months are ideal for cycling, outdoor events, and exploring the city’s historic canals and gardens, with the most comfortable and reliable weather.
The least favourable time to visit is from November to February, when Delft is coldest, wettest, and least sunny. Rain, wind, and short daylight hours can limit outdoor activities, though the city’s museums and cafés offer a cosy refuge from the weather.
Delft has a temperate maritime climate with mild summers (22–23°C), cool, damp winters (6–8°C), and rainfall throughout the year. Weather is changeable, with frequent clouds, wind, and occasional sunshine.
The best time to visit Delft is from late May to September, when temperatures are mild, days are long, and rainfall is moderate—perfect for outdoor activities and sightseeing.
Snow is possible in winter, especially in January and February, but it is usually light and doesn’t last long. Most winter precipitation falls as rain, and frost can occur on colder nights.
Delft receives about 800–875 mm of precipitation annually, with rain distributed fairly evenly throughout the year. August is typically the wettest month, while April and May are driest.
Sunshine hours range from just 1.8 per day in December to up to 8 per day in June and July. The city enjoys about 1,600–2,000 hours of sunshine each year, with the most in summer.
Yes, Delft experiences moderate to strong winds year-round, averaging 15–20 km/h. Winds are generally stronger in winter and early spring, contributing to the city’s brisk, fresh atmosphere.
The warmest month, with the highest average maximum temperature, is August (21.1 °C). The month with the lowest average maximum temperature is January (5.8 °C). Overall, the average maximum temperature over the whole year is 13.3 °C.
The month with the highest average minimum temperature is August (16.4 °C). The coldest month, with the lowest average minimum temperature, is February (2.9 °C). Overall, the average minimum temperature over the whole year is 9.1 °C.
The wettest month, with the highest amount of precipitation, is August (65.8 mm). The driest month, with the least amount of precipitation, is April (18.1 mm). Over the whole year there are 554 mm of rainfall on average.
The month with the most days of rain is August (19.9 days). The month with the fewest days of rain is April (12.4 days). Over the whole year there are 198.4 days of rain on average.
The month with the most snowfall is February (24.2 mm). The months with the least snowfall are May, June, July, August, September and October (0 mm). Over the whole year there are 55.5 mm of snowfall on average.
The month with the most days of snowfall is February (3.8 days). The months with the fewest days of snowfall are May, July, August and September (0 days). Over the whole year there are 10.6 days of snowfall on average.
The month with the highest average relative humidity is January (83.9 %). The month with the lowest average relative humidity is August (74.5 %). The overall average relative humidity over the whole year is 78.6 %.
The windiest month, with the highest average wind speed, is December (25 km/h). The calmest month, with the lowest average wind speed, is July (16.3 km/h). The overall average wind speed over the whole year is 19.5 km/h.
The month with the cloudiest skies, so the highest cloud coverage, is December (65.5 %). The month with the clearest skies, so the lowest cloud coverage, is April (37.9 %). Over the whole year there is an average cloud coverage of 49.3 %.
The month with the longest days, so the most daylight, is June (Average daylight: 16.1 h). The month with the shortest days, so the least daylight, is December (Average daylight: 7.1 h). Over the whole year there are 11.7 h of daylight per day on average.
The month with the most sunshine per day is July (Average sunshine: 10.1 h). The month with the least sunshine per day is January (Average sunshine: 3 h). Over the whole year there are 6.4 h of sunlight per day on average.
The months with the highest average UV index are June, July and August (UV index: 5). The months with the lowest average UV index are January, February, November and December (UV index: 2). Over the whole year the average UV index is 3.4.
