Climate Insights for Haarlem

The climate in Haarlem is temperate. The average annual temperature is 11°C and approximately 914 mm of precipitation falls per year. Haarlem receives a notable amount of rainfall throughout the year, including during its driest month. Haarlem is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, February, March, when temperatures can drop to 4°C. Light snow can occur between January and December.The climate in Haarlem is temperate. The average annual temperature is 52°F and approximately 36 in of precipitation falls per year. Haarlem receives a notable amount of rainfall throughout the year, including during its driest month. Haarlem is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, February, March, when temperatures can drop to 38°F. Light snow can occur between January and December.

Haarlem sees moderate temperature variation throughout the year, ranging from 4°C to 21°C. August is the warmest month, though highs remain moderate at 21°C with a mean of 18°C. January is the coolest month, with minimum temperatures around 4°C and an average of 5°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between October and November, with a 4°C shift in average temperatures.Haarlem sees moderate temperature variation throughout the year, ranging from 38°F to 70°F. August is the warmest month, though highs remain moderate at 70°F with a mean of 65°F. January is the coolest month, with minimum temperatures around 38°F and an average of 41°F. Daily temperature variation is modest, with an average difference of 8°F between highs and lows. The sharpest temperature change occurs between October and November, with a 8°F shift in average temperatures.

Haarlem is a moderately rainy area, receiving approximately 914 mm of precipitation annually, which averages out to around 76 mm per month. The wettest month is October, averaging 105 mm of rainfall. September and November also tend to see above-average precipitation. The driest month is May, with just 53 mm. That's 52 mm less than October, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Light snowfall can occur between January and December, totalling around 13cm annually. February is the snowiest month with approximately 4cm.Haarlem is a moderately rainy area, receiving approximately 36 in of precipitation annually, which averages out to around 3 in per month. The wettest month is October, averaging 4.1 in of rainfall. September and November also tend to see above-average precipitation. The driest month is May, with just 2.1 in. That's 2 in less than October, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Light snowfall can occur between January and December, totalling around 5in annually. February is the snowiest month with approximately 2in.

Haarlem is mildly breezy, with an average annual wind speed of 19km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 23km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in July, with average winds dropping to 16km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 7km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 23km/h in winter, 18km/h in spring, 17km/h in summer, 20km/h in autumn.Haarlem is very windy, with an average annual wind speed of 12mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is February, averaging 14mph, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in July, with average winds dropping to 10mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4mph between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 14mph in winter, 11mph in spring, 10mph in summer, 12mph in autumn.

The best time to visit Haarlem is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 80 mm per month. By contrast, January can be quite cold with temperatures dropping to 4°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.The best time to visit Haarlem is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 63°F with modest rainfall averaging 3.1 in per month. By contrast, January can be quite cold with temperatures dropping to 38°F. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Haarlem based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Haarlem based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in inches (in) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.