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
September's onset brings a negligible change in high-temperatures, falling from an agreeable 20.1°C (68.2°F) in August to a refreshing 16.5°C (61.7°F). During the nights of September, the average low-temperature holds at 13.1°C (55.6°F).Humidity
In September, the average relative humidity in Ishøj is 79%.Rainfall
In September, in Ishøj, the rain falls for 14.4 days. Throughout September, 36mm (1.42") of precipitation is accumulated. In Ishøj, during the entire year, the rain falls for 159.2 days and collects up to 413mm (16.26") of precipitation.Snowfall
In Ishøj, snow does not fall in May through October.Daylight
In September, the average length of the day in Ishøj, Denmark, is 12h and 44min.On the first day of September, sunrise is at 06:16 and sunset at 20:04. On the last day of the month, sunrise is at 07:12 and sunset at 18:48 CEST.
Sunshine
In Ishøj, the average sunshine in September is 7.9h.UV index
In September, the average daily maximum UV index in Ishøj is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 4 in September transforms into the following instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Frequently asked questions
What are September temperatures in Ishøj?
What is the average humidity in September in Ishøj?
How much does it rain in Ishøj in September?
When it does not snow in Ishøj?
How many hours of daylight does Ishøj have in September?
When is the sunrise / sunset in September in Ishøj?
How long on average sun shines in September in Ishøj?
How high is the UV index in September in Ishøj?
Average temperature in September
Ishøj, Denmark
- Average high temperature in September: 16.5°C
The warmest months (with the highest average high temperature) are July and August (20.1°C).
The month with the lowest average high temperature is February (2.7°C).
- Average low temperature in September: 13.1°C
The month with the highest average low temperature is August (15.7°C).
The coldest month (with the lowest average low temperature) is February (-0.1°C).
Average pressure in September
Ishøj, Denmark
- Average pressure in September: 1015.3mbar
The month with the highest atmospheric pressure is April (1015.6mbar).
The month with the lowest atmospheric pressure is December (1011.2mbar).
Average wind speed in September
Ishøj, Denmark
- Average wind speed in September: 18.2km/h
The windiest month (with the highest average wind speed) is December (21.7km/h).
The calmest month (with the lowest average wind speed) is July (15.3km/h).
Average humidity in September
Ishøj, Denmark
- Average humidity in September: 79%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Ishøj, Denmark
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is August (59mm).
The driest month (with the least rainfall) is April (15mm).
Average rainfall days in September
Ishøj, Denmark
- Average rainfall days in September: 14.4 days
The month with the highest number of rainy days is August (16.9 days).
The month with the least rainy days is February (8.1 days).
Average snowfall in September
Ishøj, Denmark
- Average snowfall in September: 0mm
The month with the highest snowfall is December (36mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Ishøj, Denmark
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Ishøj, Denmark
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 24min).
The month with the shortest days is December (Average daylight: 7h and 12min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in September
Ishøj, Denmark
- Average sunshine days in September: 13.3 days
The month with the most sunshine days is March (17.4 days).
The month with the least sunshine days is December (8.8 days).
Average UV index in September
Ishøj, Denmark
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Ishøj, Denmark
- Average cloud cover in September: 45
The month with the most cloud cover is December (Cloud cover 70).
The months with the least cloud cover are June and August (Cloud cover 38).
Average visibility in September
Ishøj, Denmark
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, October, November and December (9km).
Ishøj, Denmark
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