April weather forecastKatwijk, Netherlands
April
Weather in April
April in Katwijk, Netherlands, is a mild spring month, with an average temperature varying between 14.8°C (58.6°F) and 6°C (42.8°F).Temperature
With the onset of April, Katwijk observes a minor temperature ascent, with the average high-temperature adjusting from March's cool 10°C (50°F) to a moderate 14.8°C (58.6°F). Throughout April, Katwijk anticipates an average low-temperature of 6°C (42.8°F).Humidity
April is the least humid month, with an average relative humidity of 74%.Rainfall
April is the month with the least rainfall in Katwijk. Rain falls for 11.7 days and accumulates 19mm (0.75") of precipitation.Snowfall
In Katwijk, snow does not fall in April through October.Daylight
In Katwijk, the average length of the day in April is 13h and 55min.On the first day of the month, sunrise is at 07:10 and sunset at 20:10. On the last day of April, in Katwijk, Netherlands, sunrise is at 06:08 and sunset at 20:59 CEST.
Sunshine
In April, the average sunshine in Katwijk, Netherlands, is 8.3h.UV index
The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In April, a daily UV index of 3 turns into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Katwijk, Netherlands
- Average high temperature in April: 14.8°C
The warmest month (with the highest average high temperature) is July (22.6°C).
The month with the lowest average high temperature is January (4.7°C).
- Average low temperature in April: 6°C
The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is January (1°C).
Average pressure in April
Katwijk, Netherlands
- Average pressure in April: 1015.9mbar
The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1012.1mbar).
Average wind speed in April
Katwijk, Netherlands
- Average wind speed in April: 12.9km/h
The windiest month (with the highest average wind speed) is December (17.6km/h).
The calmest month (with the lowest average wind speed) is August (11.5km/h).
Average humidity in April
Katwijk, Netherlands
- Average humidity in April: 74%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is April (74%).
Average rainfall in April
Katwijk, Netherlands
- Average rainfall in April: 19mm
The wettest month (with the highest rainfall) is July (51mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in April
Katwijk, Netherlands
- Average rainfall days in April: 11.7 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (11.6 days).
Average snowfall in April
Katwijk, Netherlands
- Average snowfall in April: 0mm
The month with the highest snowfall is January (26mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in April
Katwijk, Netherlands
- Average snowfall days in April: 0.1 days
The months with the highest number of snowfall days are January and February (3.3 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
Katwijk, 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 July (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).
Average sunshine days in April
Katwijk, Netherlands
- Average sunshine days in April: 16.3 days
The month with the most sunshine days is April (16.3 days).
The month with the least sunshine days is July (9.2 days).
Average UV index in April
Katwijk, 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
Katwijk, Netherlands
- Average cloud cover in April: 42
The month with the most cloud cover is December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 41).
Average visibility in April
Katwijk, Netherlands
- Average visibility in April: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (9km).
The month with the lowest visibility is September (8km).





