April weather forecastRotterdam, Netherlands
April
Weather in April
April unveils a more radiant and warmer Rotterdam as the dreary winter curtain finally rises. The increase in temperature is accompanied by a decrease in rainfall and an uptick in sunlight hours showing the full bloom of Spring. Although, overall, there's a drop in rainfall from March to April, the city still hosts nearly 10 days of rain this month. Upholding the Spring promise, April allows for longer days of sunlight and clear skies. Simultaneously, it provides a breath of fresh air with a decrease in wind speed after the blustery winter months.Temperature
Rotterdam's April weather indicates a minor ascent in high-temperatures, adjusting from a frosty 9.9°C (49.8°F) in March to a refreshing 14.3°C (57.7°F). Throughout April, Rotterdam anticipates an average low-temperature of 6.8°C (44.2°F).Humidity
With an average relative humidity of 73%, April is the least humid month.Rainfall
April is the month with the least rainfall. Rain falls for 9.5 days and accumulates 9mm (0.35") of precipitation.Snowfall
April through October are months without snowfall in Rotterdam, Netherlands.Daylight
In April, the average length of the day in Rotterdam is 13h and 55min.On the first day of the month, sunrise is at 07:15 and sunset at 20:16. On the last day of April, in Rotterdam, Netherlands, sunrise is at 06:13 and sunset at 21:05 CEST.
Sunshine
In Rotterdam, the average sunshine in April is 8.3h.UV index
In April, the average daily maximum UV index in Rotterdam, Netherlands, is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: A daily high UV index of 3 in April leads to these guidelines:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Rotterdam, Netherlands
- Average high temperature in April: 14.3°C
The warmest months (with the highest average high temperature) are July and August (22°C).
The month with the lowest average high temperature is January (5.6°C).
- Average low temperature in April: 6.8°C
The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is February (2.3°C).
Average pressure in April
Rotterdam, Netherlands
- Average pressure in April: 1015.9mbar
The month with the highest atmospheric pressure is September (1017mbar).
The month with the lowest atmospheric pressure is November (1011.4mbar).
Average wind speed in April
Rotterdam, Netherlands
- Average wind speed in April: 14.4km/h
The windiest month (with the highest average wind speed) is December (20.2km/h).
The calmest months (with the lowest average wind speed) are July and August (13.6km/h).
Average humidity in April
Rotterdam, Netherlands
- Average humidity in April: 73%
The month with the highest relative humidity is December (85%).
The month with the lowest relative humidity is April (73%).
Average rainfall in April
Rotterdam, Netherlands
- Average rainfall in April: 9mm
The wettest month (with the highest rainfall) is June (24mm).
The driest month (with the least rainfall) is April (9mm).
Average rainfall days in April
Rotterdam, Netherlands
- Average rainfall days in April: 9.5 days
The month with the highest number of rainy days is July (13.8 days).
The month with the least rainy days is February (8.5 days).
Average snowfall in April
Rotterdam, Netherlands
- Average snowfall in April: 0mm
The month with the highest snowfall is February (19mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in April
Rotterdam, Netherlands
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Rotterdam, Netherlands
- Average daylight in April: 13h and 54min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in April: 8h and 18min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in April
Rotterdam, Netherlands
- Average sunshine days in April: 17.5 days
The month with the most sunshine days is April (17.5 days).
The month with the least sunshine days is July (13 days).
Average UV index in April
Rotterdam, Netherlands
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Rotterdam, Netherlands
- Average cloud cover in April: 41
The month with the most cloud cover is December (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in April
Rotterdam, Netherlands
- Average visibility in April: 10km
The months with the highest visibility are April, May, June and August (10km).
The months with the lowest visibility are January, February, March, July, September, October, November and December (9km).
