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
September
Weather in September
Temperature
The beginning of September brings a minor change in the average high-temperature, shifting from an agreeable 20.2°C (68.4°F) in August to a comfortable 16.6°C (61.9°F). In September, Hillerød experiences a marginal drop in temperature, with averages of 13°C (55.4°F) at night.Humidity
The average relative humidity in September in Hillerød is 78%.Rainfall
In September, the rain falls for 14.4 days. Throughout September, 33mm (1.3") of precipitation is accumulated. In Hillerød, during the entire year, the rain falls for 166.4 days and collects up to 373mm (14.69") of precipitation.Snowfall
In Hillerød, Denmark, snow does not fall in June through October.Daylight
In Hillerød, Denmark, the average length of the day in September is 12h and 44min.On the first day of the month, sunrise is at 06:16 and sunset at 20:04. On the last day of September, in Hillerød, sunrise is at 07:12 and sunset at 18:48 CEST.
Sunshine
In September, the average sunshine is 7.6h.UV index
In September, the average daily maximum UV index in Hillerød is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 4 during September translates into these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Hillerød?
What is the average humidity in September in Hillerød?
How much does it rain in Hillerød in September?
When it does not snow in Hillerød?
How many hours of daylight does Hillerød have in September?
What time are sunrise and sunset in September in Hillerød?
How many hours of sunshine does Hillerød have in September?
What is the UV index reading in September in Hillerød?
Average temperature in September
Hillerød, Denmark
- Average high temperature in September: 16.6°C
The warmest months (with the highest average high temperature) are July and August (20.2°C).
The month with the lowest average high temperature is February (2.7°C).
- Average low temperature in September: 13°C
The month with the highest average low temperature is August (15.6°C).
The coldest month (with the lowest average low temperature) is February (-0.2°C).
Average pressure in September
Hillerød, Denmark
- Average pressure in September: 1015.1mbar
The month with the highest atmospheric pressure is April (1015.5mbar).
The month with the lowest atmospheric pressure is December (1010.8mbar).
Average wind speed in September
Hillerød, Denmark
- Average wind speed in September: 18.4km/h
The windiest month (with the highest average wind speed) is December (22.1km/h).
The calmest month (with the lowest average wind speed) is July (15.4km/h).
Average humidity in September
Hillerød, Denmark
- Average humidity in September: 78%
The months with the highest relative humidity are January, February, November and December (86%).
The months with the lowest relative humidity are April, May and June (75%).
Average rainfall in September
Hillerød, Denmark
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is August (54mm).
The driest month (with the least rainfall) is April (15mm).
Average rainfall days in September
Hillerød, Denmark
- Average rainfall days in September: 14.4 days
The month with the highest number of rainy days is August (18.8 days).
The month with the least rainy days is February (8.8 days).
Average snowfall in September
Hillerød, Denmark
- Average snowfall in September: 0mm
The month with the highest snowfall is February (43mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in September
Hillerød, Denmark
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hillerød, Denmark
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 30min).
The month with the shortest days is December (Average daylight: 7h and 6min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in September
Hillerød, Denmark
- Average sunshine days in September: 11.5 days
The month with the most sunshine days is April (15.3 days).
The month with the least sunshine days is December (9.1 days).
Average UV index in September
Hillerød, Denmark
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Hillerød, Denmark
- Average cloud cover in September: 47
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 39).
Average visibility in September
Hillerød, Denmark
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).
