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
In Giessen, entering September brings a subtle temperature decrement, reducing from August's pleasant 22.4°C (72.3°F) to an enjoyable 19°C (66.2°F). During the month of September, the nighttime temperature in Giessen falls to an average of 11.2°C (52.2°F).Humidity
In September, the average relative humidity is 81%.Rainfall
In Giessen, in September, it is raining for 7.6 days, with typically 8mm (0.31") of accumulated precipitation. Throughout the year, there are 92.6 rainfall days, and 112mm (4.41") of precipitation is accumulated.Snowfall
In Giessen, snow does not fall in April through October.Daylight
In Giessen, the average length of the day in September is 12h and 39min.On the first day of September, sunrise is at 06:52 and sunset at 20:26. On the last day of the month, sunrise is at 07:39 and sunset at 19:19 CEST.
Sunshine
The average sunshine in September is 7.6h.UV index
In Giessen, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A maximum UV index of 4 in September translates into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
What is the usual temperature for Giessen in September?
What is the average humidity in September in Giessen?
How much does it rain in Giessen in September?
When it does not snow in Giessen?
How many hours of daylight does Giessen have in September?
What time are sunrise and sunset in September in Giessen?
How many hours of sunshine does Giessen have in September?
What is the UV index reading in September in Giessen?
Average temperature in September
Giessen, Netherlands
- Average high temperature in September: 19°C
The warmest month (with the highest average high temperature) is July (22.5°C).
The month with the lowest average high temperature is January (4.8°C).
- Average low temperature in September: 11.2°C
The month with the highest average low temperature is August (13.8°C).
The coldest months (with the lowest average low temperature) are January and February (1.3°C).
Average pressure in September
Giessen, Netherlands
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is September (1017.1mbar).
The month with the lowest atmospheric pressure is November (1012mbar).
Average wind speed in September
Giessen, Netherlands
- Average wind speed in September: 11.8km/h
The windiest month (with the highest average wind speed) is December (17.5km/h).
The calmest month (with the lowest average wind speed) is August (11.4km/h).
Average humidity in September
Giessen, Netherlands
- Average humidity in September: 81%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Giessen, Netherlands
- Average rainfall in September: 8mm
The wettest months (with the highest rainfall) are June and August (12mm).
The driest month (with the least rainfall) is April (4mm).
Average rainfall days in September
Giessen, Netherlands
- Average rainfall days in September: 7.6 days
The month with the highest number of rainy days is December (9.5 days).
The month with the least rainy days is April (6.1 days).
Average snowfall in September
Giessen, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is February (8mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Giessen, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Giessen, Netherlands
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is June (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in September
Giessen, Netherlands
- Average sunshine days in September: 19.1 days
The month with the most sunshine days is April (22.7 days).
The month with the least sunshine days is August (16.3 days).
Average UV index in September
Giessen, Netherlands
- 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
Giessen, Netherlands
- Average cloud cover in September: 45
The month with the most cloud cover is December (Cloud cover 64).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility in September
Giessen, Netherlands
- Average visibility in September: 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).
Giessen, Netherlands
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