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
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from an agreeable 22.9°C (73.2°F) to an enjoyable 18.5°C (65.3°F). The average temperature during September nights is registered at a frosty 8.8°C (47.8°F).Humidity
In Riederich, the average relative humidity in September is 81%.Rainfall
In Riederich, in September, during 13.5 rainfall days, 36mm (1.42") of precipitation is typically accumulated. Throughout the year, there are 175.3 rainfall days, and 612mm (24.09") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Riederich, the average length of the day in September is 12h and 35min.On the first day of September in Riederich, sunrise is at 06:40 and sunset at 20:04. On the last day of the month, sunrise is at 07:21 and sunset at 19:03 CEST.
Sunshine
In Riederich, the average sunshine in September is 8.6h.UV index
In Riederich, Germany, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 3 transforms into these recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Riederich in September?
What is the average humidity in September in Riederich?
How much does it rain in Riederich in September?
When it does not snow in Riederich?
Does it snow in Riederich in September?
What is the average length of the day in September in Riederich?
When are sunrise and sunset in September in Riederich?
How many hours of sunshine does Riederich have in September?
What is the UV index reading in September in Riederich?
Average temperature in September
Riederich, Germany
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is August (22.9°C).
The month with the lowest average high temperature is January (2.4°C).
- Average low temperature in September: 8.8°C
The month with the highest average low temperature is August (12.5°C).
The coldest month (with the lowest average low temperature) is February (-2.8°C).
Average pressure in September
Riederich, Germany
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1020.1mbar).
The month with the lowest atmospheric pressure is November (1015.5mbar).
Average wind speed in September
Riederich, Germany
- Average wind speed in September: 8.2km/h
The windiest month (with the highest average wind speed) is December (11.9km/h).
The calmest month (with the lowest average wind speed) is August (8km/h).
Average humidity in September
Riederich, Germany
- Average humidity in September: 81%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Riederich, Germany
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is May (82mm).
The driest month (with the least rainfall) is March (32mm).
Average rainfall days in September
Riederich, Germany
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (22.2 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in September
Riederich, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (85mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Riederich, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Riederich, Germany
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Riederich, Germany
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is June (6.7 days).
Average UV index in September
Riederich, Germany
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in September
Riederich, Germany
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Riederich, Germany
- Average visibility in September: 8km
The months with the highest visibility are April, June, July and August (9km).
The month with the lowest visibility is January (7km).
