September weather forecastRijndijk, Netherlands

September

Weather in September

The first month of the autumn, September, is still a comfortable month in Rijndijk, Netherlands, with an average temperature fluctuating between 13.8°C (56.8°F) and 18.1°C (64.6°F).

Temperature

As Rijndijk steps into September, the average high-temperature is measured at a refreshing 18.1°C (64.6°F), displaying minor differences from August's 21°C (69.8°F). Rijndijk consistently logs a low temperature averaging a mild 13.8°C (56.8°F) during September, a modest drop from daytime temperatures.

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Rijndijk, in September, it is raining for 15.6 days, with typically 40mm (1.57") of accumulated precipitation. Throughout the year, there are 183.4 rainfall days, and 400mm (15.75") of precipitation is accumulated.

Snowfall

In Rijndijk, snow does not fall in April through October.

Daylight

In September, the average length of the day in Rijndijk is 12h and 39min.
On the first day of the month, sunrise is at 06:54 and sunset at 20:28. On the last day of September, sunrise is at 07:41 and sunset at 19:21 CEST.

Sunshine

In Rijndijk, the average sunshine in September is 7.1h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: During September, 4 as the daily maximum UV index converts into the following advice:
Be vigilant - Suggestions to stave off sun damage are provided. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.

Frequently asked questions

In Rijndijk, 18.1°C (64.6°F) is the average high-temperature and 13.8°C (56.8°F) is the average low-temperature during September.

In September, the average relative humidity in Rijndijk, Netherlands, is 77%.

In September, in Rijndijk, Netherlands, the rain falls for 15.6 days. Throughout September, 40mm (1.57") of precipitation is accumulated.

April through October are months without snowfall in Rijndijk, Netherlands.

In Rijndijk, Netherlands, the average day length in September is 12h and 39min.

On the first day of September in Rijndijk, sunrise is at 06:54 and sunset at 20:28. On the last day of the month, sunrise is at 07:41 and sunset at 19:21 CEST.

In September, the average sunshine duration in Rijndijk is 7.1h.

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Rijndijk, Netherlands

  • Average high temperature in September: 18.1°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 September: 13.8°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 in September
Rijndijk, Netherlands

  • Average pressure in September: 1016.8mbar

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 in September
Rijndijk, Netherlands

  • Average wind speed in September: 17.5km/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 in September
Rijndijk, Netherlands

  • Average humidity in September: 77%

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 in September
Rijndijk, Netherlands

  • Average rainfall in September: 40mm

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

Average rainfall days in September
Rijndijk, Netherlands

  • Average rainfall days in September: 15.6 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 in September
Rijndijk, Netherlands

  • Average snowfall in September: 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).

Average snowfall days in September
Rijndijk, Netherlands

  • Average snowfall days in September: 0 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 in September /
Average sunshine in September
Rijndijk, Netherlands

  • Average daylight in September: 12h and 42min

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 September: 7h and 6min

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 in September
Rijndijk, Netherlands

  • Average sunshine days in September: 10.8 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).

Average UV index in September
Rijndijk, Netherlands

  • Average UV index in September: 4

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 September
Rijndijk, Netherlands

  • Average cloud cover in September: 44

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 in September
Rijndijk, Netherlands

  • Average visibility in September: 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).