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 modest decline in the average high-temperature is seen during September, decreasing from a warm 23.8°C (74.8°F) in August to a comfortable 18.9°C (66°F). The month of September records an average low-temperature of 10.2°C (50.4°F).Humidity
In September, the average relative humidity in Riethgen is 75%.Rainfall
In Riethgen, in September, during 11.5 rainfall days, 27mm (1.06") of precipitation is typically accumulated. In Riethgen, Germany, during the entire year, the rain falls for 163.5 days and collects up to 374mm (14.72") of precipitation.Snowfall
In Riethgen, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 38min.On the first day of September, sunrise is at 06:29 and sunset at 20:01. On the last day of the month, sunrise is at 07:15 and sunset at 18:55 CEST.
Sunshine
The average sunshine in September in Riethgen, Germany, is 8.6h.UV index
In Riethgen, Germany, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a daily UV index of 4 turns into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Riethgen?
What is the average humidity in September in Riethgen?
How many days does it rain in September in Riethgen?
When it does not snow in Riethgen?
Does it snow in Riethgen in September?
How many hours of daylight does Riethgen have in September?
When are sunrise and sunset in September in Riethgen?
How many hours of sunshine does Riethgen have in September?
How high is the UV index in September in Riethgen?
Average temperature in September
Riethgen, Germany
- Average high temperature in September: 18.9°C
The warmest months (with the highest average high temperature) are July and August (23.8°C).
The month with the lowest average high temperature is January (2°C).
- Average low temperature in September: 10.2°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (-2.3°C).
Average pressure in September
Riethgen, Germany
- Average pressure in September: 1017.5mbar
The months with the highest atmospheric pressure are September and October (1017.5mbar).
The month with the lowest atmospheric pressure is November (1014.2mbar).
Average wind speed in September
Riethgen, Germany
- Average wind speed in September: 10.4km/h
The windiest month (with the highest average wind speed) is December (15.3km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).
Average humidity in September
Riethgen, Germany
- Average humidity in September: 75%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (69%).
Average rainfall in September
Riethgen, Germany
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is May (44mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Riethgen, Germany
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (10 days).
Average snowfall in September
Riethgen, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is December (62mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Riethgen, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.7 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
Riethgen, Germany
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).
Average sunshine days in September
Riethgen, Germany
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is October (15.8 days).
The month with the least sunshine days is December (9.6 days).
Average UV index in September
Riethgen, Germany
- 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, March, November and December (UV index 2).
Average cloud cover in September
Riethgen, Germany
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Riethgen, Germany
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July, August and September (9km).
The months with the lowest visibility are January, February, October, November and December (8km).
