September weather forecastMartillac, France

September

Weather in September

September, the first month of the autumn in Martillac, is still a warm month, with an average temperature varying between 24.4°C (75.9°F) and 13.8°C (56.8°F).

Temperature

The transition to September results in a modest reduction in average high-temperature, moving from a warm 27.5°C (81.5°F) in August to a still moderately hot 24.4°C (75.9°F). Throughout September, Martillac's nights cool down to an average of 13.8°C (56.8°F).

Humidity

The average relative humidity in September is 70%.

Rainfall

The month with the least rainfall is September, when the rain falls for 8.5 days and typically collects 15mm (0.59") of precipitation.

Snowfall

January, April through November are months without snowfall in Martillac.

Daylight

In September, the average length of the day is 12h and 31min.
On the first day of the month, sunrise is at 07:25 and sunset at 20:38. On the last day of September, sunrise is at 07:59 and sunset at 19:44 CEST.

Sunshine

In Martillac, the average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 5 transforms into these recommendations:
Ensure safety - Sun damage prevention is strongly urged. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.

Frequently asked questions

The high-temperature during September is 24.4°C (75.9°F) and the low-temperature is 13.8°C (56.8°F). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 30°C (86°F).

In Martillac, the average relative humidity in September is 70%.

September is the month with the least rainfall in Martillac. Rain falls for 8.5 days and accumulates 15mm (0.59") of precipitation.

In Martillac, in September, during 8.5 rainfall days, 15mm (0.59") of precipitation is typically accumulated.

In Martillac, snow does not fall in January, April through November.

In Martillac, the average day length in September is 12h and 31min.

In September, on the first day of the month, sunrise is at 07:25 and sunset at 20:38. On the last day of the month, sunrise is at 07:59 and sunset at 19:44 CEST.

In Martillac, the average sunshine duration in September is 8.5h.

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Martillac, France

  • Average high temperature in September: 24.4°C

The warmest month (with the highest average high temperature) is August (27.5°C).
The month with the lowest average high temperature is January (9.8°C).

  • Average low temperature in September: 13.8°C

The month with the highest average low temperature is July (16.3°C).
The coldest month (with the lowest average low temperature) is February (4.1°C).

Average pressure in September
Martillac, France

  • Average pressure in September: 1018.3mbar

The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is November (1015mbar).

Average wind speed in September
Martillac, France

  • Average wind speed in September: 9km/h

The windiest month (with the highest average wind speed) is March (11.9km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).

Average humidity in September
Martillac, France

  • Average humidity in September: 70%

The months with the highest relative humidity are January and December (84%).
The month with the lowest relative humidity is August (68%).

Average rainfall in September
Martillac, France

  • Average rainfall in September: 15mm

The wettest month (with the highest rainfall) is November (51mm).
The driest month (with the least rainfall) is September (15mm).

Average rainfall days in September
Martillac, France

  • Average rainfall days in September: 8.5 days

The month with the highest number of rainy days is May (14.2 days).
The month with the least rainy days is September (8.5 days).

Average snowfall in September
Martillac, France

  • Average snowfall in September: 0mm

The month with the highest snowfall is December (4mm).
The months with the least snowfall are January, April, May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Martillac, France

  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are February and December (0.3 days).
The months with the least snowfall days are January, April, May, June, July, August, September, October and November (0 days).

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

  • Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in September: 8h and 30min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in September
Martillac, France

  • Average sunshine days in September: 19.6 days

The month with the most sunshine days is September (19.6 days).
The months with the least sunshine days are May and June (13.8 days).

Average UV index in September
Martillac, France

  • Average UV index in September: 5

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 3).

Average cloud cover in September
Martillac, France

  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in September
Martillac, France

  • Average visibility in September: 9km

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