Haarlem weather and climate in 2025
Day
18 °C
Night
11 °C
Sea
17 °C
Precipitation
87 mm
in month
Rainy days
13 days
in month
Daylight
13 hours
average
Sunshine
5 hours
average
Humidity
83 %
Day
18 °C
Night
11 °C
Sea
17 °C
Precipitation
87 mm
in month
Rainy days
13 days
in month
Daylight
13 hours
average
Sunshine
5 hours
average
Humidity
83 %
Overview: Haarlem
Weather charts for Haarlem
Find more destinations like this
Closest destinations for Haarlem
Closest cities for Haarlem
Weather overview for Haarlem
Weather overview
Haarlem (Netherlands) is a place with a mild climate. The day temperatures range from 6 °C (43 °F) in January to 21 °C (70 °F) in July. The least rainy month in Haarlem is April with its 9 days of rain, the rainiest month is December, when it rains 15 days. Temperatures during the night go from 1 °C (33 °F) in February to 14 °C (56 °F) in July.
January weather
The number of rainy days starts to descent, with its value being 14 days in Haarlem, while the rainfall amount descents similarly to the previous month, with its value of 71 mm (2.79 in). The day temperature reaches its minimum, its value is 6 °C (43 °F), while the descent of the night temperature can be observed, with its value being 1 °C (34 °F). The humidity is on its maximum in January. The wind speed reaches its maximum, the value of this measure is 7.
February weather
The number of rainy days descents similarly to the previous month, with its value being 11 days in Haarlem, and the descent of the rainfall amount can be observed as well, the value of this measure is 54 mm (2.12 in). The number of sun hours (without clouds) rise's start could be observed in February. The minimum of the night temperature is observable in February.
March weather
The number of rainy days rise's start could be observed, with its value of 13 days in Haarlem, and the beginning of the rise of the rainfall amount could be noticed as well. The day temperature rise's start could be observed, its value is 9 °C (49 °F), and the night temperature rise's start could be observed as well. The rise of the number of sun hours (without clouds) can be observed, the value of this measure is 4 hours.
April weather
The minimum of the number of rainy days can be noticed, with its value being 9 days in Haarlem, and the minimum of the rainfall amount is observable as well, the value of this measure is 42 mm (1.64 in). The day temperature continues to rise, with its value being 11 °C (51 °F), and the night temperature rises similarly to the previous month as well, the value of this measure is 7 °C (45 °F). The number of sun hours (without clouds) rises similarly to the previous month, the value of this measure is 5 hours.
May weather
The day temperature continues to rise, with its value of 16 °C (61 °F) in Haarlem, and the rise of the night temperature can be observed too, its value is 9 °C (48 °F). The number of rainy days rise's start could be observed, and the beginning of the rise of the rainfall amount could be noticed as well in this month. The rise of the number of sun hours (without clouds) can be observed. The minimum of the humidity is observable in this month.
June weather
The rise of the day temperature can be observed, its value is 19 °C (66 °F) in Haarlem, and the night temperature continues to rise as well, with its value of 11 °C (53 °F). The rainfall amount rises similarly to the previous month, with its value being 64 mm (2.51 in). The tourist season is at its beginning. The maximum of the number of sun hours (without clouds) can be noticed in June. The maximum of the day length can be noticed, its value is 16 hours.
July weather
There is pending tourist season in Haarlem. The maximum of the day temperature is observable, with its value of 21 °C (70 °F), and the maximum of the night temperature can be noticed as well, with its value of 14 °C (56 °F). The rise of the rainfall amount can be observed, with its value being 74 mm (2.91 in), while the number of rainy days starts to rise in this month. The wind speed reaches its minimum, the value of this measure is 5.
August weather
The tourist season is close to its peak in Haarlem. The number of rainy days continues to rise, with its value being 12 days, and the rainfall amount rises similarly to the previous month as well, the value of this measure is 82 mm (3.24 in).
September weather
The ongoing tourist season is noticeable in September in Haarlem. The beginning of the descent of the day temperature could be noticed, the value of this measure is 18 °C (65 °F), and the night temperature descent's start could be observed too. The number of sun hours (without clouds) descent's start could be observed.
October weather
The descent of the day temperature can be observed, with its value being 14 °C (58 °F) in Haarlem, and the night temperature continues to descent as well. The beginning of the rise of the number of rainy days could be noticed, the value of this measure is 14 days, while the maximum of the rainfall amount is observable, the value of this measure is 98 mm (3.84 in). The number of sun hours (without clouds) descents similarly to the previous month, its value is 3 hours.
November weather
The day temperature descents similarly to the previous month, with its value of 10 °C (50 °F) in Haarlem, and the night temperature descents similarly to the previous month too, with its value being 5 °C (41 °F). The rise of the number of rainy days can be observed, its value is 15 days, while the rainfall amount starts to descent, its value is 92 mm (3.62 in). The number of sun hours (without clouds) descents similarly to the previous month, the value of this measure is 2 hours.
December weather
The number of rainy days reaches its maximum, with its value being 15 days in Haarlem, while the rainfall amount continues to descent, with its value of 81 mm (3.21 in). The descent of the day temperature can be observed, with its value being 7 °C (44 °F), and the night temperature descents similarly to the previous month as well, the value of this measure is 2 °C (36 °F). The minimum of the number of sun hours (without clouds) is observable in this month. The minimum of the day length is observable, with its value being 8 hours.
FAQs
Is April part of the dry season in Haarlem?
No, April is not a dry month in Haarlem, expect rain approximately 9 days in a month.
How many sunny hours can I expect in May in Haarlem?
There is an average length of sunshine of 7 hours per day in May in Haarlem.
What is the average number of rainy days in June in Haarlem?
In June in Haarlem, we can expect 11 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.6 days of the week, or in general - 37 % days.
Is there a wet season in July in Haarlem?
No, there is no wet season in Haarlem in July - you can expect 12 days of rain during the month.
What is the temperature in Haarlem during the day in August?
The average daily temperature in Haarlem in August is 21 °C (70 °F). A comfortable temperature for most people, where it is neither too cold nor too hot, and a large number of activities can be carried out comfortably, including sunbathing by the water. Lighter clothing will be suitable - shorts, skirts, t-shirts, jackets; a light sweater and long trousers may also be useful.
Are there good conditions to visit in September in Haarlem?
There are good conditions for visiting in September in Haarlem. There are some people, who may feel a slight chill at 18 °C (65 °F), but others will feel perfectly fine. The temperature of 11 °C (52 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.
What is the sea temperature in Haarlem in October?
The temperature of the sea in October in Haarlem is 14 °C (58 °F). This is a sea temperature for resilient people only, most people won't enjoy swimming in such cold water or will have to use a wetsuit for water activities. This is a decrease of 3 °C (37 °F) compared to the last month.
We make the most from 40 years of historical weather data to predict the best weather conditions.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.