Amsterdam, where it lies

In Amsterdam, the capital of the Netherlands, the climate is sub-oceanic, humid and rainy, influenced by the North Sea but also by the Atlantic Ocean, which is not far, so it has cold (but not freezing) winters, and quite cool summers.
The average temperature ranges from 3.5 °C (38.5 °F) in January and February to 17 °C (62.5 °F) in July and August.
Here are the average temperatures.
Amsterdam - Average temperatures
Min (°C)1035811121111842
Max (°C)661014172022221914106
Min (°F)343237414652545252463936
Max (°F)434350576368727266575043

Precipitation is relatively abundant, about 840 millimeters (33 inches) per year, but above all it is common and distributed over the seasons. However, the rainiest season is autumn, the least rainy season is spring. Rainfall often occurs in the form of short showers, or drizzle. On average, there are 12/13 days with rainfall per month in autumn and early winter, and about 9/10 days in late winter and spring.
Here is the average precipitation.
Amsterdam - Average precipitation

The wind blows frequently, and can be intense, especially from November to March.

Winter, from December to February, is cold: temperatures are on average around freezing (0 °C or 32 °F) at night and a few degrees above during the day; wind and humidity often exacerbate the feeling of cold.
However, different weather situations can occur.
When the westerlies blow, temperatures can be quite mild, and can reach 10/12 °C (50/54 °F).
On the contrary, when the city is reached by cold air masses from Russia, the temperature drops below freezing, for longer or shorter periods, even during the day. During the most intense and prolonged cold waves, the city's canals can freeze. Generally, on colder winters the temperature can drop to around -13 °C (9 °F), as happened in December 2010, or -14 °C (7 °F), as happened in January 1985, January 1987 and January 2010; more rarely, it can drop below these values, as happened in February 1956, when it dropped to -20 °C (-4 °F), and in February 2012, when it dropped to -19 °C (-2 °F).
Snowfalls in the Dutch capital are quite frequent, though usually not abundant, and occur in the form of sleet or light snow, sometimes, however, snow can accumulate on the ground, and last for many days, if it occurs during cold waves.

Spring, from March to May, is initially cold, with possible snowfalls still in March, and then it gradually becomes milder in April and May, although some cold days, with highs around 10 °C (50 °F), can occur also in May, especially in the first half of the month. However, April and May are the (relatively) least rainy and cloudy months.
Typically, in the second half of May the temperatures become permanently acceptable, and there can be the first pleasantly warm days, with highs around 25 °C (77 °F) or even above.

Summer, from June to August, is a mild season, and it's characterized by pleasant periods, when the daytime temperatures are between 20 °C and 25 °C (68 °F and 77 °F), alternating with cooler periods, when the temperature remains below 20 °C (68 °F) even in the warmest hours. At night it can be a bit cold, in fact, lows can drop below 10 °C (50 °F) even in July and August. Sometimes there can be hot days, when the temperature can reach 28/30 °C (82/86 °F), but this may not occur for a whole month.
The wind blows constantly from the sea, and even rainfall is quite frequent.

Autumn, from September to November, is initially pleasant, in the first half of September, then it gradually becomes more cold, dull, wet and windy. The first night frosts usually occur in November, but sometimes also in October.


The amount of sunshine in Amsterdam is not high: the sun rarely shines from November to February, while it goes a bit better from May to August, when the weather is variable, and between one disturbance and another the sun can come out.
Amsterdam - Sunshine

The North Sea near Amsterdam is very cool or cold even in summer: the water temperature reaches 16 °C (61 °F) in July and 17 °C (63 °F) in August and September.
Here are the average sea temperatures.
Amsterdam - Sea temperature
Temp (°C)87891113161717151310
Temp (°F)464546485255616363595550

Best Time

The best time to visit Amsterdam runs from mid-May to mid-September, since it is the mildest of the year. July and August are the warmest months. However, it's better to bring a sweatshirt or sweater, a light jacket and an umbrella, hoping not to have to use them.