April weather forecast
Alphen aan den Rijn, Netherlands

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Weather in April

April in Alphen aan den Rijn is marked by further increased temperatures, ranging from 7.3°C (45.1°F) to 12.8°C (55°F). This month is notably drier with a relatively modest rainfall of 14mm (0.55") spread across 11.3 days. Residents notice a clear shift from the cooler months towards milder, more agreeable weather. Sunlight swells, filling the landscape with warmth and inviting residents to bask in outdoor activities. April's weather paves the way for spring’s full bloom by offering more daylight, less rain, and a noticeable rise in temperatures.

Temperature

Alphen aan den Rijn perceives a slight temperature ascent during April, with average high-temperatures adjusting from a chilly 9°C (48.2°F) in March to a fresh 12.8°C (55°F). Alphen aan den Rijn's average low-temperature for the month of April records at a frosty 7.3°C (45.1°F).

Humidity

April and August, with an average relative humidity of 75%, are the least humid months in Alphen aan den Rijn.

Rainfall

The month with the least rainfall in Alphen aan den Rijn is April, when the rain falls for 11.3 days and typically collects 14mm (0.55") of precipitation.

Snowfall

April through October are months without snowfall in Alphen aan den Rijn, Netherlands.

Daylight

The average length of the day in April in Alphen aan den Rijn, Netherlands, is 13h and 56min.
On the first day of April in Alphen aan den Rijn, Netherlands, sunrise is at 07:14 and sunset at 20:15. On the last day of the month, sunrise is at 06:11 and sunset at 21:05 CEST.

Sunshine

The average sunshine in April in Alphen aan den Rijn is 8.7h.

UV index

In Alphen aan den Rijn, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A daily high UV index of 3 in April leads to these guidelines:
Exercise caution. Those with pale skin may experience burns in less than half an hour. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Frequently asked questions

What is the temperature in April in Alphen aan den Rijn?

In April, the average high-temperature and low-temperature in Alphen aan den Rijn are 12.8°C (55°F) and 7.3°C (45.1°F) respectively.

What is the least humid month in Alphen aan den Rijn?

April and August, with an average relative humidity of 75%, are the least humid months.

What is the average humidity in April in Alphen aan den Rijn?

In Alphen aan den Rijn, the average relative humidity in April is 75%.

What is the driest month in Alphen aan den Rijn?

April is the month with the least rainfall in Alphen aan den Rijn. Rain falls for 11.3 days and accumulates 14mm (0.55") of precipitation.

How many days does it rain in April in Alphen aan den Rijn?

In Alphen aan den Rijn, in April, it is raining for 11.3 days, with typically 14mm (0.55") of accumulated precipitation.

When it does not snow in Alphen aan den Rijn?

In Alphen aan den Rijn, snow does not fall in April through October.

Does it snow in Alphen aan den Rijn in April?

In April, in Alphen aan den Rijn, Netherlands, it doesn't snow. March is the latest month when it typically snows.

How many hours of daylight does Alphen aan den Rijn have in April?

In April, the average day length is 13h and 56min.

When is the sunrise / sunset in April in Alphen aan den Rijn?

On the first day of April, sunrise is at 07:14 and sunset at 20:15. On the last day of the month, sunrise is at 06:11 and sunset at 21:05 CEST.

How long on average sun shines in April in Alphen aan den Rijn?

The average sunshine duration in April is 8.7h.

How high is the UV index in April in Alphen aan den Rijn?

In Alphen aan den Rijn, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAprilMJJASOND
Mar
April
May
Average high temperature
9°C 48.2°F
12.8°C 55°F
15.2°C 59.4°F
Average low temperature
4.5°C 40.1°F
7.3°C 45.1°F
9.9°C 49.8°F
Average pressure
1015.5mbar 29.99inHg
1015.9mbar 30inHg
1016.6mbar 30.02inHg
Average wind speed
20.1km/h 12.5mph
16.6km/h 10.3mph
16.8km/h 10.4mph
Average max. wind speed
21.3km/h 13.2mph
17.4km/h 10.8mph
17.8km/h 11.1mph
Average wind speed gusts
31km/h 19.3mph
25.6km/h 15.9mph
25.6km/h 15.9mph
Average humidity
78%
75%
76%
Average rainfall
22mm 0.87"
14mm 0.55"
21mm 0.83"
Average rainfall days
12.5
11.3
13.2
Average snowfall
3mm 0.12"
0mm 0"
0mm 0"
Average snowfall days
0.8
0.2
0
Average daylight
11h 5min
13h 5min
15h 4min
Average sunshine
6h 1min
8h 4min
9h 0min
Average sunshine days
15.8
16.8
14.3
Average UV index
3
3
4
Average cloud cover
51%
38%
41%
Average visibility
10km 6.2mi
10km 6.2mi
10km 6.2mi

Average temperature in April
Alphen aan den Rijn, Netherlands

Average temperature in April - Alphen aan den Rijn, Netherlands
  • Average high temperature in April: 12.8°C

The warmest month (with the highest average high temperature) is August (21°C).
The month with the lowest average high temperature is January (5.8°C).

  • Average low temperature in April: 7.3°C

The month with the highest average low temperature is August (16.3°C).
The coldest month (with the lowest average low temperature) is February (2.8°C).

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Average pressure in April
Alphen aan den Rijn, Netherlands

Average pressure in April - Alphen aan den Rijn, Netherlands
  • Average pressure in April: 1015.9mbar

The month with the highest atmospheric pressure is September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1011.2mbar).

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Average wind speed in April
Alphen aan den Rijn, Netherlands

Average wind speed in April - Alphen aan den Rijn, Netherlands
  • Average wind speed in April: 16.6km/h

The windiest month (with the highest average wind speed) is December (24.7km/h).
The calmest month (with the lowest average wind speed) is July (16.1km/h).

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Average humidity in April
Alphen aan den Rijn, Netherlands

Average humidity in April - Alphen aan den Rijn, Netherlands
  • Average humidity in April: 75%

The months with the highest relative humidity are January and December (83%).
The months with the lowest relative humidity are April and August (75%).

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Average rainfall in April
Alphen aan den Rijn, Netherlands

Average rainfall in April - Alphen aan den Rijn, Netherlands
  • Average rainfall in April: 14mm

The wettest month (with the highest rainfall) is August (53mm).
The driest month (with the least rainfall) is April (14mm).

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Average rainfall days in April
Alphen aan den Rijn, Netherlands

Average rainfall days in April - Alphen aan den Rijn, Netherlands
  • Average rainfall days in April: 11.3 days

The month with the highest number of rainy days is August (19.1 days).
The month with the least rainy days is April (11.3 days).

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Average snowfall in April
Alphen aan den Rijn, Netherlands

Average snowfall in April - Alphen aan den Rijn, Netherlands
  • Average snowfall in April: 0mm

The month with the highest snowfall is February (22mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

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Average snowfall days in April
Alphen aan den Rijn, Netherlands

Average snowfall days in April - Alphen aan den Rijn, Netherlands
  • Average snowfall days in April: 0.2 days

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in April /
Average sunshine in April
Alphen aan den Rijn, Netherlands

Average daylight in April / Average sunshine in April - Alphen aan den Rijn, Netherlands
  • Average daylight in April: 13h and 5min

The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).

  • Average sunshine in April: 8h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).

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Average sunshine days in April
Alphen aan den Rijn, Netherlands

Average sunshine days in April - Alphen aan den Rijn, Netherlands
  • Average sunshine days in April: 16.8 days

The month with the most sunshine days is April (16.8 days).
The month with the least sunshine days is December (8.1 days).

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Average UV index in April
Alphen aan den Rijn, Netherlands

Average UV index in April - Alphen aan den Rijn, 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).

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Average cloud cover in April
Alphen aan den Rijn, Netherlands

Average cloud cover in April - Alphen aan den Rijn, Netherlands
  • Average cloud cover in April: 38

The month with the most cloud cover is December (Cloud cover 65).
The months with the least cloud cover are April and August (Cloud cover 38).

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Average visibility in April
Alphen aan den Rijn, Netherlands

Average visibility in April - Alphen aan den Rijn, Netherlands
  • Average visibility in April: 10km

The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January and December (9km).

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Alphen aan den Rijn, Netherlands

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