Climate Insights for Rotterdam
Stadsdriehoek, South Holland, Netherlands
Climate Overview
The climate in Rotterdam is temperate. The average annual temperature is 11°C and approximately 841 mm of precipitation falls per year. Rotterdam receives a notable amount of rainfall throughout the year, including during its driest month. Rotterdam 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 3°C. Light snow can occur between January and December.The climate in Rotterdam is temperate. The average annual temperature is 52°F and approximately 33.1 in of precipitation falls per year. Rotterdam receives a notable amount of rainfall throughout the year, including during its driest month. Rotterdam 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 37°F. Light snow can occur between January and December.
Temperature
Rotterdam sees moderate temperature variation throughout the year, ranging from 3°C to 22°C. August is the warmest month, though highs remain moderate at 22°C with a mean of 18°C. January is the coolest month, with minimum temperatures around 3°C and an average of 5°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between October and November, with a 5°C shift in average temperatures.Rotterdam sees moderate temperature variation throughout the year, ranging from 37°F to 72°F. August is the warmest month, though highs remain moderate at 72°F with a mean of 65°F. January is the coolest month, with minimum temperatures around 37°F and an average of 40°F. Daily temperature variation is modest, with an average difference of 12°F between highs and lows. The sharpest temperature change occurs between October and November, with a 8°F shift in average temperatures.
Precipitation
Rotterdam is a moderately rainy area, receiving approximately 841 mm of precipitation annually, which averages out to around 70 mm per month. The wettest month is October, averaging 89 mm of rainfall. September and July also tend to see above-average precipitation. The driest month is April, with just 57 mm. That's 32 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 15cm annually. December is the snowiest month with approximately 5cm.Rotterdam is a moderately rainy area, receiving approximately 33.1 in of precipitation annually, which averages out to around 2.8 in per month. The wettest month is October, averaging 3.5 in of rainfall. September and July also tend to see above-average precipitation. The driest month is April, with just 2.2 in. That's 1.3 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 6in annually. December is the snowiest month with approximately 2in.
Wind
Rotterdam is mildly breezy, with an average annual wind speed of 16km/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 19km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 14km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 5km/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 18km/h in winter, 15km/h in spring, 14km/h in summer, 15km/h in autumn.Rotterdam is moderately windy, with an average annual wind speed of 10mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is February, averaging 12mph, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in August, with average winds dropping to 8mph, 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 11mph in winter, 9mph in spring, 8mph in summer, 10mph in autumn.
Best Time to Visit
The best time to visit Rotterdam 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 72 mm per month. By contrast, January can be quite cold with temperatures dropping to 3°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 Rotterdam 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 2.8 in per month. By contrast, January can be quite cold with temperatures dropping to 37°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.
Monthly Climate Data
The table below shows monthly climate averages for Rotterdam 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 Rotterdam 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.