September weather forecast
The Hague, Netherlands

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Weather in September

September in The Hague brings the start of autumn with decreasing temperatures. The city sees a decline in sea temperatures while rainfall drops to 51mm (2.01"). Sunshine hours decrease from the height of summer, paving the path for shorter days. The wind picks up the pace, and the atmosphere carries a slight chill. Though it does not match the wetness of summer's peak, it serves as a gentle reminder of the impending colder months.

Temperature

The shift from August to September in The Hague coincides with a small decrease in the average high-temperature, down to a comfortable 18.1°C (64.6°F) from a pleasant 21.1°C (70°F). In The Hague, the average low-temperature during September nights tends to settle at a still refreshing 13.8°C (56.8°F), indicating a slight drop from the daytime peak.

Humidity

In The Hague, the average relative humidity in September is 77%.

Rainfall

In The Hague, in September, during 16.8 rainfall days, 51mm (2.01") of precipitation is typically accumulated. Throughout the year, there are 198.4 rainfall days, and 554mm (21.81") of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Sea temperature

In The Hague, in September, the average water temperature is 18.1°C (64.6°F).
Note: In water of 18.1°C (64.6°F), the majority of people do not enjoy swimming. Breathing becomes increasingly hard to manage as the temperature drops from 21°C (69.8°F) to 15°C (59°F).

Daylight

In September, the average length of the day is 12h and 39min.
On the first day of September, sunrise is at 06:55 and sunset at 20:29. On the last day of the month, sunrise is at 07:43 and sunset at 19:22 CEST.

Sunshine

In The Hague, the average sunshine in September is 7.2h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 4 in September translates into this advice:
Make use of precautions - Suggestions to resist sunburn are communicated. It's recommended to limit sun exposure when its radiation is at its peak during midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
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Frequently asked questions

What are September temperatures in The Hague?

The high-temperature in The Hague during September is 18.1°C (64.6°F) and the low-temperature is 13.8°C (56.8°F).

What is the average humidity in September in The Hague?

The average relative humidity in September in The Hague, Netherlands, is 77%.

How much does it rain in The Hague in September?

In The Hague, Netherlands, during September, the rain falls for 16.8 days and regularly aggregates up to 51mm (2.01") of precipitation.

When it does not snow in The Hague?

In The Hague, Netherlands, snow does not fall in May through October.

What is the sea temperature in September in The Hague?

In The Hague, in September, the average water temperature is 18.1°C (64.6°F). For swimming, a surface water temperature of 18.1°C (64.6°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

How many hours of daylight does The Hague have in September?

The average day length in September in The Hague is 12h and 39min.

What time are sunrise and sunset in September in The Hague?

On the first day of September in The Hague, Netherlands, sunrise is at 06:55 and sunset at 20:29. On the last day of the month, sunrise is at 07:43 and sunset at 19:22 CEST.

How long on average sun shines in September in The Hague?

In September, the average sunshine duration in The Hague is 7.2h.

How high is the UV index in September in The Hague?

In The Hague, Netherlands, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in September
The Hague, Netherlands

Average temperature in September - The Hague, Netherlands
  • Average high temperature in September: 18.1°C

The warmest month (with the highest average high temperature) is August (21.1°C).
The month with the lowest average high temperature is January (5.9°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 (2.9°C).

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Average pressure in September
The Hague, Netherlands

Average pressure in September - The Hague, Netherlands
  • Average pressure in September: 1016.9mbar

The month with the highest atmospheric pressure is September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1011.2mbar).

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Average wind speed in September
The Hague, Netherlands

Average wind speed in September - The Hague, Netherlands
  • Average wind speed in September: 17.7km/h

The windiest month (with the highest average wind speed) is December (24.9km/h).
The calmest month (with the lowest average wind speed) is July (16.2km/h).

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Average humidity in September
The Hague, Netherlands

Average humidity in September - The Hague, 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%).

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Average rainfall in September
The Hague, Netherlands

Average rainfall in September - The Hague, Netherlands
  • Average rainfall in September: 51mm

The wettest month (with the highest rainfall) is August (65mm).
The driest month (with the least rainfall) is April (18mm).

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Average rainfall days in September
The Hague, Netherlands

Average rainfall days in September - The Hague, Netherlands
  • Average rainfall days in September: 16.8 days

The months with the highest number of rainy days are August and December (19.8 days).
The month with the least rainy days is April (12.3 days).

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Average snowfall in September
The Hague, Netherlands

Average snowfall in September - The Hague, Netherlands
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (24mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

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Average snowfall days in September
The Hague, Netherlands

Average snowfall days in September - The Hague, 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).

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Average sea temperature in September
The Hague, Netherlands

Average sea temperature in September - The Hague, Netherlands
  • Average sea temperature in September: 18.1°C

The best month for swimming (with the highest average sea temperature) is August (18.3°C).
The coldest month (with the lowest average sea temperature) is January (6.2°C).

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Average daylight in September /
Average sunshine in September
The Hague, Netherlands

Average daylight in September / Average sunshine in September - The Hague, Netherlands
  • Average daylight in September: 12h and 4min

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 1min

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 September
The Hague, Netherlands

Average sunshine days in September - The Hague, Netherlands
  • Average sunshine days in September: 10 days

The month with the most sunshine days is April (15.8 days).
The month with the least sunshine days is December (7.1 days).

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Average UV index in September
The Hague, Netherlands

Average UV index in September - The Hague, 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).

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Average cloud cover in September
The Hague, Netherlands

Average cloud cover in September - The Hague, Netherlands
  • Average cloud cover in September: 44

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

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Average visibility in September
The Hague, Netherlands

Average visibility in September - The Hague, Netherlands
  • Average visibility in September: 10km

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

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The Hague, Netherlands

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