September weather forecastBarthe, France

September

Weather in September

The first month of the autumn, September, is also an agreeable month in Barthe, France, with temperature in the range of an average high of 20.7°C (69.3°F) and an average low of 9.5°C (49.1°F).

Temperature

In Barthe, entering September brings a subtle temperature decrement, reducing from August's warm 24.3°C (75.7°F) to an agreeable 20.7°C (69.3°F). Barthe experiences a mean low-temperature of 9.5°C (49.1°F) during September.

Humidity

In September, the average relative humidity is 74%.

Rainfall

September is the month with the least rainfall. Rain falls for 13.2 days and accumulates 36mm (1.42") of precipitation.

Snowfall

In Barthe, snow does not fall in June through September.

Daylight

In September, the average length of the day is 12h and 30min.
On the first day of the month, sunrise is at 07:22 and sunset at 20:33. On the last day of September, sunrise is at 07:54 and sunset at 19:40 CEST.

Sunshine

In September, the average sunshine is 8.9h.

UV index

In September, the average daily maximum UV index in Barthe is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 4 in September transforms into the following instructions:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

Frequently asked questions

During September, Barthe experiences an average high-temperature of 20.7°C (69.3°F) and a low-temperature of 9.5°C (49.1°F).

In September, the average relative humidity is 74%.

The month with the least rainfall is September, when the rain falls for 13.2 days and typically collects 36mm (1.42") of precipitation.

In Barthe, in September, during 13.2 rainfall days, 36mm (1.42") of precipitation is typically accumulated.

June through September are months without snowfall.

In Barthe, in September, it doesn't snow. In October, it regularly snows.

In September, the average day length is 12h and 30min.

In September, on the first day of the month, sunrise is at 07:22 and sunset at 20:33. On the last day of the month, sunrise is at 07:54 and sunset at 19:40 CEST.

The average sunshine duration in September is 8.9h.

In Barthe, 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 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
Barthe, France

  • Average high temperature in September: 20.7°C

The warmest month (with the highest average high temperature) is August (24.3°C).
The month with the lowest average high temperature is January (6.8°C).

  • Average low temperature in September: 9.5°C

The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is February (-1.3°C).

Average pressure in September
Barthe, France

  • Average pressure in September: 1018.3mbar

The month with the highest atmospheric pressure is December (1021.9mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).

Average wind speed in September
Barthe, France

  • Average wind speed in September: 6.7km/h

The windiest month (with the highest average wind speed) is February (8.7km/h).
The calmest month (with the lowest average wind speed) is September (6.7km/h).

Average humidity in September
Barthe, France

  • Average humidity in September: 74%

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are August and October (73%).

Average rainfall in September
Barthe, France

  • Average rainfall in September: 36mm

The wettest month (with the highest rainfall) is May (92mm).
The driest month (with the least rainfall) is September (36mm).

Average rainfall days in September
Barthe, France

  • Average rainfall days in September: 13.2 days

The month with the highest number of rainy days is April (19.7 days).
The month with the least rainy days is October (12.3 days).

Average snowfall in September
Barthe, France

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (56mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Barthe, France

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Barthe, France

  • Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in September: 8h and 54min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is November (Average sunshine: 5h and 36min).

Average sunshine days in September
Barthe, France

  • Average sunshine days in September: 13.5 days

The month with the most sunshine days is October (16.7 days).
The month with the least sunshine days is April (7.9 days).

Average UV index in September
Barthe, France

  • 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
Barthe, France

  • Average cloud cover in September: 27

The month with the most cloud cover is April (Cloud cover 44).
The month with the least cloud cover is September (Cloud cover 27).

Average visibility in September
Barthe, France

  • Average visibility in September: 9km

The months with the highest visibility are March, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February and April (8km).