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 commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a pleasant 22.3°C (72.1°F) in August to a comfortable 18.7°C (65.7°F). During the month of September, Heteren experiences a steady low-temperature average of 10.7°C (51.3°F).Humidity
The average relative humidity in September is 82%.Rainfall
In Heteren, Netherlands, during September, the rain falls for 13.5 days and regularly aggregates up to 28mm (1.1") of precipitation. Throughout the year, there are 193.3 rainfall days, and 523mm (20.59") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in September is 12h and 39min.On the first day of the month, sunrise is at 06:49 and sunset at 20:23. On the last day of September, in Heteren, sunrise is at 07:37 and sunset at 19:16 CEST.
Sunshine
In Heteren, Netherlands, the average sunshine in September is 7.2h.UV index
In Heteren, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The average daily UV index of 4 in September transforms into the following instructions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Heteren in September?
What is the average humidity in September in Heteren?
How many days does it rain in September in Heteren?
When it does not snow in Heteren?
What is the average length of the day in September in Heteren?
What time are sunrise and sunset in September in Heteren?
How many hours of sunshine does Heteren have in September?
What is the UV index intensity in September in Heteren?
Average temperature in September
Heteren, Netherlands
- Average high temperature in September: 18.7°C
The warmest months (with the highest average high temperature) are July and August (22.3°C).
The month with the lowest average high temperature is January (4.6°C).
- Average low temperature in September: 10.7°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°C).
Average pressure in September
Heteren, 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 (1011.8mbar).
Average wind speed in September
Heteren, Netherlands
- Average wind speed in September: 11.9km/h
The windiest month (with the highest average wind speed) is December (17.7km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).
Average humidity in September
Heteren, Netherlands
- Average humidity in September: 82%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Heteren, Netherlands
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is June (53mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in September
Heteren, Netherlands
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is September (13.5 days).
Average snowfall in September
Heteren, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is February (39mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Heteren, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.7 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
Heteren, 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 1min
The month with the most sunshine is July (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Heteren, Netherlands
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is December (7.9 days).
Average UV index in September
Heteren, 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
Heteren, Netherlands
- Average cloud cover in September: 47
The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 43).
Average visibility in September
Heteren, Netherlands
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, June, July, August, October and November (9km).
The months with the lowest visibility are September and December (8km).
