August weather forecast
Grentheville, France

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Weather in August

August, the last month of the summer in Grentheville, is also an agreeable month, with an average temperature ranging between min 13.7°C (56.7°F) and max 20.9°C (69.6°F).

Temperature

In Grentheville, the average temperatures in August are the highest, with a peak at 20.9°C (69.6°F) and a low of 13.7°C (56.7°F).

Humidity

August and September, with an average relative humidity of 80%, are the least humid months.

Rainfall

In August, the rain falls for 14.3 days. Throughout August, 40mm (1.57") of precipitation is accumulated. Throughout the year, there are 184.6 rainfall days, and 499mm (19.65") of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in August in Grentheville is 14h and 21min.
On the first day of the month, sunrise is at 06:34 and sunset at 21:40. On the last day of August, in Grentheville, sunrise is at 07:16 and sunset at 20:45 CEST.

Sunshine

In Grentheville, France, the average sunshine in August is 8.4h.

UV index

The months with the highest UV index are July and August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In August, a regular UV index of 5 translates into these guidelines:
Make use of precautions - It is urged to ward off sun damage. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.

Frequently asked questions

What part of the year is the hottest in Grentheville?

August stands out as Grentheville's warmest month, with temperatures ranging between an average high of 20.9°C (69.6°F) and a low of 13.7°C (56.7°F).

What is the usual temperature for Grentheville in August?

The average high-temperature, in August, in Grentheville, is 20.9°C (69.6°F), while the average low-temperature is 13.7°C (56.7°F).

What is the least humid month in Grentheville?

The months with the lowest humidity are August and September, with an average relative humidity of 80%.

What is the average humidity in August in Grentheville?

In August, the average relative humidity in Grentheville is 80%.

How many days does it rain in August in Grentheville?

In Grentheville, in August, it is raining for 14.3 days, with typically 40mm (1.57") of accumulated precipitation.

When it does not snow in Grentheville?

In Grentheville, France, snow does not fall in May through October.

How many hours of daylight does Grentheville have in August?

In Grentheville, France, the average day length in August is 14h and 21min.

When is the sunrise / sunset in August in Grentheville?

In August, on the first day of the month, sunrise is at 06:34 and sunset at 21:40. On the last day of the month, in Grentheville, sunrise is at 07:16 and sunset at 20:45 CEST.

How many hours of sunshine does Grentheville have in August?

In August, the average sunshine duration in Grentheville, France, is 8.4h.

What are the months with the highest UV index in Grentheville?

The months with the highest UV index are July and August, with an average maximum UV index of 5.

What is the UV index intensity in August in Grentheville?

In August, the average daily maximum UV index in Grentheville, France, is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to 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 August
Grentheville, France

Average temperature in August - Grentheville, France
  • Average high temperature in August: 20.9°C

The warmest month (with the highest average high temperature) is August (20.9°C).
The month with the lowest average high temperature is January (7.6°C).

  • Average low temperature in August: 13.7°C

The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is February (3.7°C).

Average pressure in August
Grentheville, France

Average pressure in August - Grentheville, France
  • Average pressure in August: 1016.6mbar

The month with the highest atmospheric pressure is September (1018mbar).
The month with the lowest atmospheric pressure is November (1012.3mbar).

Average wind speed in August
Grentheville, France

Average wind speed in August - Grentheville, France
  • Average wind speed in August: 14.4km/h

The windiest month (with the highest average wind speed) is December (23.2km/h).
The calmest month (with the lowest average wind speed) is August (14.4km/h).

Average humidity in August
Grentheville, France

Average humidity in August - Grentheville, France
  • Average humidity in August: 80%

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are August and September (80%).

Average rainfall in August
Grentheville, France

Average rainfall in August - Grentheville, France
  • Average rainfall in August: 40mm

The wettest months (with the highest rainfall) are November and December (59mm).
The driest month (with the least rainfall) is September (27mm).

Average rainfall days in August
Grentheville, France

Average rainfall days in August - Grentheville, France
  • Average rainfall days in August: 14.3 days

The month with the highest number of rainy days is January (18.2 days).
The month with the least rainy days is September (12.9 days).

Average snowfall in August
Grentheville, France

Average snowfall in August - Grentheville, France
  • Average snowfall in August: 0mm

The month with the highest snowfall is February (18mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in August
Grentheville, France

Average snowfall days in August - Grentheville, France
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Grentheville, France

Average daylight in August / Average sunshine in August - Grentheville, France
  • Average daylight in August: 14h and 2min

The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in August: 8h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in August
Grentheville, France

Average sunshine days in August - Grentheville, France
  • Average sunshine days in August: 14.1 days

The month with the most sunshine days is September (14.8 days).
The months with the least sunshine days are January, February and November (9.3 days).

Average UV index in August
Grentheville, France

Average UV index in August - Grentheville, France
  • Average UV index in August: 5

The months with the highest UV index are 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 August
Grentheville, France

Average cloud cover in August - Grentheville, France
  • Average cloud cover in August: 40

The months with the most cloud cover are January and November (Cloud cover 59).
The months with the least cloud cover are July, August and September (Cloud cover 40).

Average visibility in August
Grentheville, France

Average visibility in August - Grentheville, France
  • Average visibility in August: 10km

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

Grentheville, France

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