Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
The arrival of October signals a subtle shift in temperature, down from an agreeable 20.9°C (69.6°F) in September to an enjoyable 16.4°C (61.5°F). Groslay experiences a consistent average temperature of 9.2°C (48.6°F) throughout the nights in October.Humidity
In October, the average relative humidity is 78%.Rainfall
In Groslay, in October, it is raining for 11.5 days, with typically 20mm (0.79") of accumulated precipitation. In Groslay, France, during the entire year, the rain falls for 149.5 days and collects up to 278mm (10.94") of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in October in Groslay is 10h and 47min.On the first day of the month, sunrise is at 07:50 and sunset at 19:29 CEST. On the last day of October, sunrise is at 07:37 and sunset at 17:31 CET.
Note: On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends, and the time zone changes from CEST to CET. Daylight Saving Time starts again on Sunday, 30. March 2025, at 02:00; consequently, the time zone reverts from CET to CEST.
Sunshine
In October, the average sunshine is 5.8h.UV index
In Groslay, the average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 3 in October interprets into the following advice:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Groslay in October?
What is the average humidity in October in Groslay?
How many days does it rain in October in Groslay?
When it does not snow in Groslay?
Does it snow in Groslay in October?
What is the average length of the day in October in Groslay?
When is the sunrise / sunset in October in Groslay?
When does Daylight Saving Time (DST) end in October in Groslay?
How long on average sun shines in October in Groslay?
What is the UV index intensity in October in Groslay?
Average temperature in October
Groslay, France
- Average high temperature in October: 16.4°C
The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (5.9°C).
- Average low temperature in October: 9.2°C
The month with the highest average low temperature is August (14.8°C).
The coldest months (with the lowest average low temperature) are January and February (1.8°C).
Average pressure in October
Groslay, France
- Average pressure in October: 1017mbar
The months with the highest atmospheric pressure are September and December (1018.1mbar).
The month with the lowest atmospheric pressure is November (1013.3mbar).
Average wind speed in October
Groslay, France
- Average wind speed in October: 11.9km/h
The windiest month (with the highest average wind speed) is February (15.5km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in October
Groslay, France
- Average humidity in October: 78%
The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is August (68%).
Average rainfall in October
Groslay, France
- Average rainfall in October: 20mm
The wettest month (with the highest rainfall) is December (31mm).
The driest month (with the least rainfall) is September (14mm).
Average rainfall days in October
Groslay, France
- Average rainfall days in October: 11.5 days
The month with the highest number of rainy days is July (14.5 days).
The month with the least rainy days is September (9.2 days).
Average snowfall in October
Groslay, France
- Average snowfall in October: 0mm
The months with the highest snowfall are January, February and December (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in October
Groslay, France
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in October /
Average sunshine in October
Groslay, France
- Average daylight in October: 10h and 5min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in October: 5h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in October
Groslay, France
- Average sunshine days in October: 15.8 days
The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is February (12.5 days).
Average UV index in October
Groslay, France
- Average UV index in October: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in October
Groslay, France
- Average cloud cover in October: 46
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 39).
Average visibility in October
Groslay, France
- Average visibility in October: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Groslay, France
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