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
September signals a slight drop in average high-temperature, sliding from August's warm 23.9°C (75°F) to a comfortable 19.2°C (66.6°F). Nighttime temperatures in September average to a cool 10.2°C (50.4°F) in Riedenheim, Germany.Humidity
In Riedenheim, the average relative humidity in September is 77%.Rainfall
In Riedenheim, in September, it is raining for 12.9 days, with typically 31mm (1.22") of accumulated precipitation. In Riedenheim, during the entire year, the rain falls for 167.2 days and collects up to 464mm (18.27") of precipitation.Snowfall
May through September are months without snowfall in Riedenheim, Germany.Daylight
In September, the average length of the day in Riedenheim is 12h and 36min.On the first day of September, sunrise is at 06:36 and sunset at 20:03. On the last day of the month, sunrise is at 07:19 and sunset at 19:00 CEST.
Sunshine
In September, the average sunshine is 8.7h.UV index
In Riedenheim, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 4 during September translates into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Riedenheim?
What is the average humidity in September in Riedenheim?
How many days does it rain in September in Riedenheim?
When it does not snow in Riedenheim?
Does it snow in Riedenheim in September?
What is the average length of the day in September in Riedenheim?
When are sunrise and sunset in September in Riedenheim?
How many hours of sunshine does Riedenheim have in September?
What is the UV index reading in September in Riedenheim?
Average temperature in September
Riedenheim, Germany
- Average high temperature in September: 19.2°C
The warmest month (with the highest average high temperature) is July (24°C).
The month with the lowest average high temperature is January (2.5°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 (-1.6°C).
Average pressure in September
Riedenheim, Germany
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1018.8mbar).
The month with the lowest atmospheric pressure is November (1015mbar).
Average wind speed in September
Riedenheim, Germany
- Average wind speed in September: 9.6km/h
The windiest month (with the highest average wind speed) is February (14.4km/h).
The calmest month (with the lowest average wind speed) is August (9.4km/h).
Average humidity in September
Riedenheim, Germany
- Average humidity in September: 77%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Riedenheim, Germany
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is May (53mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in September
Riedenheim, Germany
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (10.3 days).
Average snowfall in September
Riedenheim, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is December (73mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Riedenheim, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.8 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
Riedenheim, Germany
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in September
Riedenheim, Germany
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is October (16.2 days).
The months with the least sunshine days are June and July (9.8 days).
Average UV index in September
Riedenheim, Germany
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Riedenheim, Germany
- Average cloud cover in September: 38
The month with the most cloud cover is December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Riedenheim, 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).
