September weather forecast and climate
Saint-Vaast-la-Hougue, France

The first month of the autumn, September, is still a comfortable month in Saint-Vaast-la-Hougue, France, with average temperature ranging between max 17.8°C (64°F) and min 13.7°C (56.7°F).

Temperature

In September, the average high-temperature is relatively the same as in August - a still comfortable 17.8°C (64°F). The average low-temperature, in Saint-Vaast-la-Hougue, is 13.7°C (56.7°F).

Humidity

September, October and December, with an average relative humidity of 80%, are the least humid months in Saint-Vaast-la-Hougue.

Rainfall

In Saint-Vaast-la-Hougue, during September, the rain falls for 13.7 days and regularly aggregates up to 30mm (1.18") of precipitation. In Saint-Vaast-la-Hougue, during the entire year, the rain falls for 185.4 days and collects up to 507mm (19.96") of precipitation.

Snowfall

In Saint-Vaast-la-Hougue snow does not fall in April through October.

Sea temperature

September is the month with the warmest seawater in Saint-Vaast-la-Hougue, with an average sea temperature of 17.8°C (64°F).
Note: For swimming, a surface water temperature of 17.8°C (64°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).

Daylight

In September, the average length of the day in Saint-Vaast-la-Hougue is 12.6h.

Sunshine

In September, the average sunshine in Saint-Vaast-la-Hougue is 7.4h.

UV index

In September, the average daily maximum UV index in Saint-Vaast-la-Hougue is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to the UV radiation for ordinary individuals.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in September in Saint-Vaast-la-Hougue?

In September, the average high-temperature is 17.8°C (64°F), and the average low-temperature is 13.7°C (56.7°F).

What is the least humid month in Saint-Vaast-la-Hougue?

Months with the lowest humidity are September, October and December, with an average relative humidity of 80%.

What is the average humidity in September in Saint-Vaast-la-Hougue?

In Saint-Vaast-la-Hougue, the average relative humidity in September is 80%.

How much does it rain in Saint-Vaast-la-Hougue in September?

In Saint-Vaast-la-Hougue, France, in September, during 13.7 rainfall days, 30mm (1.18") of precipitation is typically accumulated.

When it does not snow in Saint-Vaast-la-Hougue?

April through October are months without snowfall in Saint-Vaast-la-Hougue.

What is the month with the warmest sea water in Saint-Vaast-la-Hougue?

With an average sea temperature of 17.8°C (64°F), September is the month with the warmest seawater in Saint-Vaast-la-Hougue, France.

What is the sea temperature in September in Saint-Vaast-la-Hougue?

In Saint-Vaast-la-Hougue, France, the average seawater temperature in September is 17.8°C (64°F). For swimming, a surface water temperature of 17.8°C (64°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 Saint-Vaast-la-Hougue have in September?

The average length of the day in September in Saint-Vaast-la-Hougue is 12.6h.

How long on average sun shines in September in Saint-Vaast-la-Hougue?

In September, the average sunshine in Saint-Vaast-la-Hougue, France, is 7.4h.

What is the UV index reading in September in Saint-Vaast-la-Hougue?

The average daily maximum UV index in September in Saint-Vaast-la-Hougue, France, is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in September - Saint-Vaast-la-Hougue, France
  • Average high temperature in September: 17.8°C

The warmest month (with the highest average high temperature) is August (19.2°C).
The month with the lowest average high temperature is February (8.5°C).

  • Average low temperature in September: 13.7°C

The month with the highest average low temperature is August (14.9°C).
The coldest month (with the lowest average low temperature) is February (5.7°C).

Average pressure in September - Saint-Vaast-la-Hougue, France
  • Average pressure in September: 1017.8mbar

The month with the highest atmospheric pressure is September (1017.8mbar).
The month with the lowest atmospheric pressure is November (1011.6mbar).

Average wind speed in September - Saint-Vaast-la-Hougue, France
  • Average wind speed in September: 20.5km/h

The windiest month (with the highest average wind speed) is December (29km/h).
The calmest months (with the lowest average wind speed) are July and August (18.4km/h).

Average humidity in September - Saint-Vaast-la-Hougue, France
  • Average humidity in September: 80%

The month with the highest relative humidity is June (83%).
Months with the lowest relative humidity are September, October and December (80%).

Average rainfall in September - Saint-Vaast-la-Hougue, France
  • Average rainfall in September: 30mm

The wettest month (with the highest rainfall) is December (67mm).
The driest month (with the least rainfall) is May (24mm).

Average rainfall days in September - Saint-Vaast-la-Hougue, France
  • Average rainfall days in September: 13.7 days

The month with the highest number of rainy days is December (19.9 days).
The month with the least rainy days is May (12.1 days).

Average snowfall in September - Saint-Vaast-la-Hougue, France
  • Average snowfall in September: 0mm

The month with the highest snowfall is December (8mm).
Months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in September - Saint-Vaast-la-Hougue, France
  • Average snowfall days in September: 0 days

Months with the highest number of snowfall days are January and February (1.3 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average sea temperature in September - Saint-Vaast-la-Hougue, France
  • Average sea temperature in September: 17.8°C

The best month for swimming (with the highest average sea temperature) is September (17.8°C).
The coldest month (with the lowest average sea temperature) is March (8.8°C).

Average daylight in September / Average sunshine in September - Saint-Vaast-la-Hougue, France
  • Average daylight in September: 12.6h

The month with the longest days is June (Average daylight: 16.2h).
The month with the shortest days is December (Average daylight: 8.2h).

  • Average sunshine in September: 7.4h

The month with the most sunshine is July (Average sunshine: 10.6h).
The month with the least sunshine is January (Average sunshine: 3.4h).

Average sunshine days in September - Saint-Vaast-la-Hougue, France
  • Average sunshine days in September: 12.8 days

The month with the most sunshine days is May (16.8 days).
The month with the least sunshine days is November (6.9 days).

Average UV index in September - Saint-Vaast-la-Hougue, France
  • Average UV index in September: 4

Months with the highest UV index are June and July (UV index 5).
Months with the lowest UV index are January, February and November (UV index 2).

Average cloud cover in September - Saint-Vaast-la-Hougue, France
  • Average cloud cover in September: 42

Months with the most cloud cover are January, November and December (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 38).

Average visibility in September - Saint-Vaast-la-Hougue, France
  • Average visibility in September: 10km

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