Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Transition into September subtly marks a drop in the average high-temperature, moderately moving from a pleasant 22.1°C (71.8°F) in August to an enjoyable 18.5°C (65.3°F). Ilheu cools down to an average low-temperature of 7.9°C (46.2°F) throughout the month of September.Humidity
The average relative humidity in September in Ilheu is 74%.Rainfall
September is the month with the least rainfall in Ilheu, France. Rain falls for 11 days and accumulates 33mm (1.3") of precipitation.Snowfall
July through September are months without snowfall.Daylight
In Ilheu, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 07:22 and sunset at 20:32. On the last day of September, in Ilheu, sunrise is at 07:54 and sunset at 19:40 CEST.
Sunshine
The average sunshine in September in Ilheu is 9.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Exercise prevention - Warding off sunburn is urged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Frequently asked questions
What is the average September temperature in Ilheu?
What is the average humidity in September in Ilheu?
What is the driest month in Ilheu?
How many days does it rain in September in Ilheu?
When it does not snow in Ilheu?
Does it snow in Ilheu in September?
How many hours of daylight does Ilheu have in September?
When is the sunrise / sunset in September in Ilheu?
How long on average sun shines in September in Ilheu?
How high is the UV index in September in Ilheu?
Average temperature in September
Ilheu, France
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is August (22.1°C).
The months with the lowest average high temperature are January and February (4.6°C).
- Average low temperature in September: 7.9°C
The month with the highest average low temperature is August (10.8°C).
The coldest month (with the lowest average low temperature) is February (-3.5°C).
Average pressure in September
Ilheu, France
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1021.9mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in September
Ilheu, France
- Average wind speed in September: 5.9km/h
The windiest month (with the highest average wind speed) is November (8.2km/h).
The calmest months (with the lowest average wind speed) are August and September (5.9km/h).
Average humidity in September
Ilheu, France
- Average humidity in September: 74%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is August (71%).
Average rainfall in September
Ilheu, France
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is November (90mm).
The driest month (with the least rainfall) is September (33mm).
Average rainfall days in September
Ilheu, France
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in September
Ilheu, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (482mm).
The months with the least snowfall are July, August and September (0mm).
Average snowfall days in September
Ilheu, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Ilheu, France
- Average daylight in September: 12h and 3min
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 6min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is November (Average sunshine: 6h and 6min).
Average sunshine days in September
Ilheu, France
- Average sunshine days in September: 17.1 days
The month with the most sunshine days is December (18.7 days).
The month with the least sunshine days is April (11.6 days).
Average UV index in September
Ilheu, France
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Ilheu, France
- Average cloud cover in September: 24
The month with the most cloud cover is April (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Ilheu, France
- Average visibility in September: 9km
The months with the highest visibility are March, May, June, July, August, September, October and December (9km).
The months with the lowest visibility are January, February, April and November (8km).
Ilheu, France
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