September weather forecast and climate
Dieppe, France

September, the first month of the autumn, in Dieppe, is also a comfortable month, with average temperature fluctuating between 18.9°C (66°F) and 11.9°C (53.4°F).

Temperature

In Dieppe, the average high-temperature is 18.9°C (66°F), and the average low-temperature is 11.9°C (53.4°F).

Humidity

March, April, August and September, with an average relative humidity of 82%, are the least humid months in Dieppe.

Rainfall

In Dieppe, France, during 10.3 rainfall days, 69.9mm (2.8") of precipitation is typically accumulated. In Dieppe, during the entire year, the rain falls for 130.4 days and collects up to 798.2mm (31.4") of precipitation.

Snowfall

Throughout the year, there are 8.3 snowfall days.

Sea temperature

Months with the warmest seawater are August and September, with an average sea temperature of 17.9°C (64.2°F). For swimming, a surface water temperature of 17.9°C (64.2°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

The average length of the day in September in Dieppe is 12.6h.

What is the temperature in September in Dieppe?

In September, the average high-temperature is 18.9°C (66°F), and the average low-temperature is 11.9°C (53.4°F).

What are the least humid months in Dieppe?

March, April, August and September, with an average relative humidity of 82%, are the least humid months in Dieppe.

What is the average humidity in September in Dieppe?

In Dieppe, France, the average relative humidity in September is 82%.

How much does it rain in Dieppe in September?

In Dieppe, France, during September, the rain falls for 10.3 days and regularly aggregates up to 69.9mm (2.8") of precipitation.

When is the sea warmest in Dieppe?

August and September, with an average sea temperature of 17.9°C (64.2°F), are months with the warmest seawater in Dieppe. For swimming, a surface water temperature of 17.9°C (64.2°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).

What is the sea water temperature in September in Dieppe?

In Dieppe, the average seawater temperature in September is 17.9°C (64.2°F). For most, swimming in 17.9°C (64.2°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

How many hours of daylight does Dieppe have in September?

In Dieppe, France, the average length of the day in September is 12.6h.
Average temperature in September - Dieppe, France
  • Average high temperature in September: 18.9°C

The warmest month (with the highest average high temperature) is August (20.7°C).
The month with the lowest average high temperature is January (7.5°C).

  • Average low temperature in September: 11.9°C

The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (2.6°C).

Average humidity in September - Dieppe, France
  • Average humidity in September: 82%

Months with the highest relative humidity are January, November and December (85%).
Months with the lowest relative humidity are March, April, August and September (82%).

Average rainfall in September - Dieppe, France
  • Average rainfall in September: 69.9mm

The wettest month (with the highest rainfall) is October (89.8mm).
The driest month (with the lowest rainfall) is February (51.5mm).

Average rainfall days in September - Dieppe, France
  • Average rainfall days in September: 10.3 days

The month with the highest number of rainy days is November (13.6 days).
The month with the lowest number of rainy days is August (8.7 days).

Average snowfall days in September - Dieppe, France
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.4 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in September - Dieppe, France
  • Average sea temperature in September: 17.9°C

Best months for swimming (with the highest average sea temperature) are August and September (17.9°C).
The coldest month (with the lowest average sea temperature) is March (8.2°C).

Average daylight in September - Dieppe, France
  • Average daylight in September: 12.6h

The month with the longest days is June (Average daylight: 16.3h).
The month with shortest days is December (Average daylight: 8.2h).

deutscheenglishespañolрусский中文