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
In September, the meteorological conditions change slightly, with the average high-temperature moving from a pleasant 22.6°C (72.7°F) in August to a comfortable 19°C (66.2°F). An average temperature of 11.5°C (52.7°F) marks the nights in September.Humidity
In Helkant, the average relative humidity in September is 81%.Rainfall
In Helkant, in September, it is raining for 15.7 days, with typically 38mm (1.5") of accumulated precipitation. Throughout the year, there are 201.2 rainfall days, and 569mm (22.4") of precipitation is accumulated.Snowfall
In Helkant, snow does not fall in April through October.Daylight
In Helkant, Netherlands, the average length of the day in September is 12h and 38min.On the first day of the month, sunrise is at 06:54 and sunset at 20:27. On the last day of September, sunrise is at 07:41 and sunset at 19:20 CEST.
Sunshine
In Helkant, the average sunshine in September is 7.5h.UV index
In Helkant, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Helkant in September?
What is the average humidity in September in Helkant?
How much does it rain in Helkant in September?
When it does not snow in Helkant?
What is the average length of the day in September in Helkant?
When are sunrise and sunset in September in Helkant?
How long on average sun shines in September in Helkant?
What is the UV index reading in September in Helkant?
Average temperature in September
Helkant, Netherlands
- Average high temperature in September: 19°C
The warmest month (with the highest average high temperature) is August (22.6°C).
The month with the lowest average high temperature is January (5.1°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is February (1.4°C).
Average pressure in September
Helkant, Netherlands
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1011.9mbar).
Average wind speed in September
Helkant, Netherlands
- Average wind speed in September: 11.9km/h
The windiest months (with the highest average wind speed) are February and December (17.5km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).
Average humidity in September
Helkant, 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
Helkant, Netherlands
- Average rainfall in September: 38mm
The wettest month (with the highest rainfall) is June (63mm).
The driest month (with the least rainfall) is April (24mm).
Average rainfall days in September
Helkant, Netherlands
- Average rainfall days in September: 15.7 days
The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is February (14.2 days).
Average snowfall in September
Helkant, Netherlands
- Average snowfall in September: 0mm
The months with the highest snowfall are January and February (30mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Helkant, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Helkant, 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 3min
The month with the most sunshine is June (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in September
Helkant, Netherlands
- Average sunshine days in September: 10.1 days
The month with the most sunshine days is March (13.8 days).
The month with the least sunshine days is August (7.8 days).
Average UV index in September
Helkant, 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
Helkant, Netherlands
- Average cloud cover in September: 45
The month with the most cloud cover is December (Cloud cover 65).
The months with the least cloud cover are April and August (Cloud cover 42).
Average visibility in September
Helkant, Netherlands
- Average visibility in September: 8km
The months with the highest visibility are February, March, April, May, June, July, August, October and November (9km).
The months with the lowest visibility are January, September and December (8km).
