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Contents
- The climate of Alphen aan den Rijn
- The best time to visit Alphen aan den Rijn
- The worst time to visit Alphen aan den Rijn
- Spring weather in Alphen aan den Rijn
- Summer weather in Alphen aan den Rijn
- Autumn weather in Alphen aan den Rijn
- Winter weather in Alphen aan den Rijn
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Alphen aan den Rijn
The overall climate conditions of Alphen aan den Rijn, in the Netherlands, adhere to the Köppen climate classification of Cfb, denoting a marine west coast climate characterized by warm summers. Located in a geographically diverse region, it experiences a moderate climate throughout the year, devoid of temperature extremes.
Monthly averages indicate a cyclical variance in temperature, humidity, wind speed, and rainfall. One observes that temperatures vary from lows of 2.8°C (37°F) in February to highs of 21°C (69.8°F) in August. The region experiences an overall high relative humidity, with monthly averages oscillating between 75% and 83%.
Rainfall in Alphen aan den Rijn is substantial for most of the year. Monthly average rainfall ranges from 14mm (0.55") in April to a significant high of 53mm (2.09") in August. Conversely, snowfall is and remains a rare occurrence with nominal variations from 0mm (0") in the summer months to highs of merely 22mm (0.87") in February. To accompany the rainfall, Alphen aan den Rijn experiences an average of around 16 rainy days each month, with a high of 19.1 in August.
The city gets average sunshine hours ranging from 3.5 hours in December to 10.3 hours in June. As for the wind, the velocity fluctuates between a mild 16.1km/h (10mph) to 24.7km/h (15.3mph) winds.
Worth to note, UV index stays consistently low at 2 to 3 during most parts of the year and increasing slightly to 5 during the summer months. Visibility remains ten kilometers for most of the year.
Monthly averages indicate a cyclical variance in temperature, humidity, wind speed, and rainfall. One observes that temperatures vary from lows of 2.8°C (37°F) in February to highs of 21°C (69.8°F) in August. The region experiences an overall high relative humidity, with monthly averages oscillating between 75% and 83%.
Rainfall in Alphen aan den Rijn is substantial for most of the year. Monthly average rainfall ranges from 14mm (0.55") in April to a significant high of 53mm (2.09") in August. Conversely, snowfall is and remains a rare occurrence with nominal variations from 0mm (0") in the summer months to highs of merely 22mm (0.87") in February. To accompany the rainfall, Alphen aan den Rijn experiences an average of around 16 rainy days each month, with a high of 19.1 in August.
The city gets average sunshine hours ranging from 3.5 hours in December to 10.3 hours in June. As for the wind, the velocity fluctuates between a mild 16.1km/h (10mph) to 24.7km/h (15.3mph) winds.
Worth to note, UV index stays consistently low at 2 to 3 during most parts of the year and increasing slightly to 5 during the summer months. Visibility remains ten kilometers for most of the year.
The best time to visit Alphen aan den Rijn
Based on the climate statistics, one would suggest that the ideal time to visit Alphen aan den Rijn would be between May to September. During this period, the city gives out generous amounts of sunshine, ranging from 9 hours in May peaking to 10.3 hours in June, and then gradually receding to 7.1 hours in September.
The worst time to visit Alphen aan den Rijn
The least optimum period to visit Alphen aan den Rijn would be from November to February. During these winter months, unfavorable conditions such as reduced daylight hours, lower temperatures, and increased snowfall are prevalent. The city gets the least sunshine of about 3.5 hours in December with the lowest temperatures dipping to 2.8°C (37°F) in February.
Spring weather in Alphen aan den Rijn
The spring season in Alphen aan den Rijn, from February to April, brings increasing temperatures as the season progresses. Humidity remains consistent, ranging from 78% to 75%. Rainfall remains lowest during this season, dropping to a yearly low of 14mm (0.55") in April.
Summer weather in Alphen aan den Rijn
Summers in Alphen aan den Rijn, extending from May to August, are characterized by warm and sunny days. The city receives the highest yearly temperatures with highs of 21°C (69.8°F) in August. Average rainfall peaks in August at 53mm (2.09"). In accordance with this, the city also experiences the most sunshine hours ranging from 9 in May to a high of 10.3 hours in June.
Autumn weather in Alphen aan den Rijn
Autumn months from September to November witness a gradual decrease in temperature from 18.1°C (64.6°F) to 10.3°C (50.5°F). Rainfall remains high with a peak of 42mm (1.65") in November. Comparative to other months, the sunshine duration decreases gradually from 7.1 hours in September to 4.1 hours in November.
Winter weather in Alphen aan den Rijn
The winter weather in Alphen aan den Rijn, extending from December to January is a chilly affair with temperatures ranging from an average low of 3.3°C (37.9°F) in January to a high of 7.5°C (45.5°F) in December. Snowfall is most common in winter, reaching its yearly peak of 22mm (0.87") in February. Moreover, daylight hours are considerably fewer ranging from 7.8 hours in December to a yearly low of 8.4 hours in January.
Weather in January
January in Alphen aan den Rijn, Netherlands is characterized by its generally low temperatures, hovering between 3.3°C (37.9°F) and 5.8°C (42.4°F), and increased snowfall of 10mm (0.39") over 2.3 days. The quiet echoes of winter can be felt in the atmosphere as frosted landscapes become a familiar sight. Weather in January »
Weather in February
The shift from January to February is noticeable with a marginal decrease in low temperatures to 2.8°C (37°F), while the high settles at 5.9°C (42.6°F). Perhaps the most outstanding feature of Alphen aan den Rijn’s weather during this period is the increased snowfall, amounting to 22mm (0.87") scattered over 3.8 days. Weather in February »
Weather in March
In March, Alphen aan den Rijn registers a noticeable warming trend as the temperatures venture between 4.5°C (40.1°F) and 9°C (48.2°F). Of note, the snowfall dwindles, making room for rain that presents itself in 22mm (0.87") distributed over 12.5 days. Weather in March »
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. Weather in April »
Weather in May
As we move into May, Alphen aan den Rijn's weather embodies the heart of spring featuring temperatures from 9.9°C (49.8°F) to 15.2°C (59.4°F). Despite a rise in rainfall registering 21mm (0.83") across 13.2 days, the increase in temperature, daylight and sunshine hours are indicative of a warmer season preparing to take center stage. Weather in May »
Weather in June
June is a pivotal month as Alphen aan den Rijn anticipates the arrival of summer with temperatures oscillating between 12.7°C (54.9°F) to 18.2°C (64.8°F). However, it's not all about the sun and warmth, as June also stands out for its relatively high rainfall of 34mm (1.34"), spread over 12.5 days. Weather in June »
Weather in July
July in Alphen aan den Rijn witnesses the highest temperatures of the year moving between 15.2°C (59.4°F) and 20.3°C (68.5°F) with the heaviest rainfall at 40mm (1.57") accumulated over 17.2 days. This can be taken as an indicator of the climax of summer, characterised by warm weather and increased precipitation. Weather in July »
Weather in August
Despite August being the warmest month with temperatures swinging from 16.3°C (61.3°F) to 21°C (69.8°F), it records the highest rainfall of 53mm (2.09") over 19.1 days. The weather patterns seen in July continue into August, maintaining it as a full-blown summer month. Weather in August »
Weather in September
September comes with a subtle shift towards lower temperatures ranging from 13.8°C (56.8°F) to 18.1°C (64.6°F) in Alphen aan den Rijn. A fall in temperatures, reduction in rainfall to 40mm (1.57") across 15.6 days and shorter daylight hours signal the onset of autumn. Weather in September »
Weather in October
October weather in Alphen aan den Rijn is characterized by a noticeable drop in temperature, sliding between 10.7°C (51.3°F) and 14.6°C (58.3°F). The rainfall remains quite high at 39mm (1.54"), falling over 17.3 days. As the month progresses, the falling leaves announce the arrival of Autumn in full force. Weather in October »
Weather in November
November in Alphen aan den Rijn brings further coldest weather with temperatures hovering from 7.5°C (45.5°F) to 10.3°C (50.5°F), and a noticeable increase in wind speed up to 21.9km/h (13.6mph). Rainfall sustains at a consistent level of 37mm (1.46") spread over 17.3 days. Weather in November »
Weather in December
December marks the return of the winter season in Alphen aan den Rijn with the temperature dropping between 4.9°C (40.8°F) and 7.5°C (45.5°F). Accentuating the cold weather, there is a resumption of snowfall at 8mm (0.31") over 1.9 days. Weather in December »
[Resources]Frequently asked questions
What part of the year is the coldest in Alphen aan den Rijn?
The coldest month in Alphen aan den Rijn, Netherlands, is January, with an average high-temperature of 5.8°C (42.4°F) and an average low-temperature of 3.3°C (37.9°F).
What are the most humid months in Alphen aan den Rijn?
January and December, with an average relative humidity of 83%, are most humid months in Alphen aan den Rijn.
How many days does it rain in Alphen aan den Rijn?
In Alphen aan den Rijn, Netherlands, during the entire year, the rain falls for 183.4 days and collects up to 400mm (15.75") of precipitation.
When does it snow in Alphen aan den Rijn?
Months with snowfall in Alphen aan den Rijn, Netherlands, are January through March, November and December.
How much does it snow in Alphen aan den Rijn?
In Alphen aan den Rijn, during the entire year, snow falls for 9.5 days and aggregates up to 46mm (1.81") of snow.
What is the month with the lowest UV index in Alphen aan den Rijn?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
When does it snow the most in Alphen aan den Rijn?
The month with the most snowfall in Alphen aan den Rijn is February, when snow falls for 3.8 days and typically aggregates up to 22mm (0.87") of snow.
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 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.
When it does not snow in Alphen aan den Rijn?
In Alphen aan den Rijn, snow does not fall in April through October.
When are the longest days in Alphen aan den Rijn?
June has the longest days of the year, with an average of 16h and 42min of daylight.
What month has the most sunshine in Alphen aan den Rijn?
June has the most sunshine of the year, with an average of 10.3h of sunshine.
What are the months with the highest UV index in Alphen aan den Rijn?
June through August, with an average maximum UV index of 5, are months with the highest UV index.
What month is the hottest in Alphen aan den Rijn?
The warmest temperatures in Alphen aan den Rijn occur during August, when averages reach a peak of 21°C (69.8°F) and a low of 16.3°C (61.3°F).
What is the rainiest month in Alphen aan den Rijn?
The month with the most rainfall is August, when the rain falls for 19.1 days and typically aggregates up to 53mm (2.09") of precipitation.
When is Daylight Saving Time (DST) in Alphen aan den Rijn?
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends in Alphen aan den Rijn, Netherlands, and the time zone changes from CEST to CET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 02:00, and the time zone reverts from CET to CEST.
What is the month with the shortest days in Alphen aan den Rijn?
With an average of 7h and 48min of daylight, December has the shortest days of the year in Alphen aan den Rijn, Netherlands.
What is the month with the least sunshine in Alphen aan den Rijn?
The month with the least sunshine is December, with an average of 3.5h of sunshine.
Average temperature
Alphen aan den Rijn, Netherlands
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).
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).
Average pressure
Alphen aan den Rijn, Netherlands
- Average pressure in January:
1014.6mbar - Average pressure in February:
1014.1mbar - Average pressure in March:
1015.5mbar - Average pressure in April:
1015.9mbar - Average pressure in May:
1016.6mbar - Average pressure in June:
1016.1mbar
- Average pressure in July:
1015.2mbar - Average pressure in August:
1015mbar - Average pressure in September:
1016.8mbar - Average pressure in October:
1015.5mbar - Average pressure in November:
1011.2mbar - Average pressure in December:
1014.3mbar
The month with the highest atmospheric pressure is September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1011.2mbar).
Average wind speed
Alphen aan den Rijn, Netherlands
- Average wind speed in January:
23.3km/h - Average wind speed in February:
23.1km/h - Average wind speed in March:
20.1km/h - Average wind speed in April:
16.6km/h - Average wind speed in May:
16.8km/h - Average wind speed in June:
16.5km/h
- Average wind speed in July:
16.1km/h - Average wind speed in August:
16.5km/h - Average wind speed in September:
17.5km/h - Average wind speed in October:
20.2km/h - Average wind speed in November:
21.9km/h - Average wind speed in December:
24.7km/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).
Average humidity
Alphen aan den Rijn, Netherlands
The months with the highest relative humidity are January and December (83%).
The months with the lowest relative humidity are April and August (75%).
Average rainfall
Alphen aan den Rijn, Netherlands
The wettest month (with the highest rainfall) is August (53mm).
The driest month (with the least rainfall) is April (14mm).
Average rainfall days
Alphen aan den Rijn, Netherlands
- Average rainfall days in January:
16.6 days - Average rainfall days in February:
12.8 days - Average rainfall days in March:
12.5 days - Average rainfall days in April:
11.3 days - Average rainfall days in May:
13.2 days - Average rainfall days in June:
12.5 days
- Average rainfall days in July:
17.2 days - Average rainfall days in August:
19.1 days - Average rainfall days in September:
15.6 days - Average rainfall days in October:
17.3 days - Average rainfall days in November:
17.3 days - Average rainfall days in December:
18 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).
Average snowfall
Alphen aan den Rijn, Netherlands
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).
Average snowfall days
Alphen aan den Rijn, Netherlands
- Average snowfall days in January:
2.3 days - Average snowfall days in February:
3.8 days - Average snowfall days in March:
0.8 days - Average snowfall days in April:
0.2 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
1.9 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).
Average daylight / Average sunshine
Alphen aan den Rijn, Netherlands
- Average daylight in January:
8h and 2min - Average daylight in February:
10h and 0min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 5min - Average daylight in May:
15h and 4min - Average daylight in June:
16h and 4min
- Average daylight in July:
16h and 1min - Average daylight in August:
14h and 4min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 4min - Average daylight in November:
8h and 5min - Average daylight in December:
7h 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 January:
3h and 4min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 4min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 3min - Average sunshine in September:
7h and 1min - Average sunshine in October:
5h and 0min - Average sunshine in November:
4h and 1min - Average sunshine in December:
3h and 3min
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).
Average sunshine days
Alphen aan den Rijn, Netherlands
- Average sunshine days in January:
10.8 days - Average sunshine days in February:
11.3 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
16.8 days - Average sunshine days in May:
14.3 days - Average sunshine days in June:
14.1 days
- Average sunshine days in July:
11.2 days - Average sunshine days in August:
9.5 days - Average sunshine days in September:
10.8 days - Average sunshine days in October:
9.6 days - Average sunshine days in November:
8.4 days - Average sunshine days in December:
8.1 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).
Average UV index
Alphen aan den Rijn, Netherlands
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
Alphen aan den Rijn, Netherlands
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).
Average visibility
Alphen aan den Rijn, Netherlands
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).
Alphen aan den Rijn, Netherlands
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