September weather forecast
Orth an der Donau, Austria

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September

Weather in September

September, the first month of the autumn in Orth an der Donau, is still a pleasant month, with an average temperature fluctuating between 12.2°C (54°F) and 21.1°C (70°F).

Temperature

September weather is marked by a drop in the average high-temperature, falling from a warm 27°C (80.6°F) in August to an agreeable 21.1°C (70°F). Orth an der Donau in September anticipates an average nighttime temperature of 12.2°C (54°F).

Humidity

In Orth an der Donau, the average relative humidity in September is 67%.

Rainfall

In Orth an der Donau, in September, it is raining for 7.8 days, with typically 17mm (0.67") of accumulated precipitation. In Orth an der Donau, Austria, during the entire year, the rain falls for 93.9 days and collects up to 205mm (8.07") of precipitation.

Snowfall

In Orth an der Donau, snow does not fall in May through September.

Daylight

In Orth an der Donau, the average length of the day in September is 12h and 35min.
On the first day of the month, sunrise is at 06:11 and sunset at 19:34. On the last day of September, sunrise is at 06:51 and sunset at 18:34 CEST.

Sunshine

In Orth an der Donau, the average sunshine in September is 9.5h.

UV index

In September, the average daily maximum UV index in Orth an der Donau is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high UV index of 4 in September translates into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Updated: Jan 27, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September in Orth an der Donau?
In Orth an der Donau, in September, the average high-temperature is 21.1°C (70°F), and the average low-temperature is 12.2°C (54°F). The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is computed to be 28°C (82.4°F).
What is the average humidity in September in Orth an der Donau?
In Orth an der Donau, Austria, the average relative humidity in September is 67%.
How many days does it rain in September in Orth an der Donau?
In Orth an der Donau, Austria, during September, the rain falls for 7.8 days and regularly aggregates up to 17mm (0.67") of precipitation.
When it does not snow in Orth an der Donau?
May through September are months without snowfall.
Does it snow in Orth an der Donau in September?
In Orth an der Donau, in September, it doesn't snow. In October, it regularly snows.
What is the average length of the day in September in Orth an der Donau?
The average day length in September is 12h and 35min.
What time are sunrise and sunset in September in Orth an der Donau?
In September, on the first day of the month, sunrise is at 06:11 and sunset at 19:34. On the last day of the month, in Orth an der Donau, Austria, sunrise is at 06:51 and sunset at 18:34 CEST.
How long on average sun shines in September in Orth an der Donau?
The average sunshine duration in September in Orth an der Donau, Austria, is 9.5h.
What is the UV index reading in September in Orth an der Donau?
In September, the average daily maximum UV index in Orth an der Donau is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMJJASeptemberOND
Aug
September
Oct
Average high temperature
27°C
21.1°C
15.1°C
Average low temperature
16.3°C
12.2°C
7.6°C
Average pressure
1016.8mbar
1018.2mbar
1019.2mbar
Average wind speed
11km/h
11.9km/h
12.8km/h
Average max. wind speed
12.1km/h
12.6km/h
14.1km/h
Average wind speed gusts
16.7km/h
18.3km/h
20.2km/h
Average humidity
61%
67%
74%
Average rainfall
18mm
17mm
13mm
Average rainfall days
7.4
7.8
7.1
Average snowfall
0mm
0mm
1mm
Average snowfall days
0
0
0.3
Average daylight
14h 2min
12h 4min
10h 5min
Average sunshine
11h 1min
9h 3min
6h 1min
Average sunshine days
21.4
20.7
23.2
Average UV index
5
4
3
Average cloud cover
24%
31%
37%
Average visibility
10km
10km
10km
Average temperature in September
Orth an der Donau, Austria
  • Average high temperature in September: 21.1°C

The warmest months (with the highest average high temperature) are July and August (27°C).
The month with the lowest average high temperature is January (2.4°C).

  • Average low temperature in September: 12.2°C

The month with the highest average low temperature is August (16.3°C).
The coldest month (with the lowest average low temperature) is January (-2.5°C).

Average pressure in September
Orth an der Donau, Austria
  • Average pressure in September: 1018.2mbar

The month with the highest atmospheric pressure is December (1020.3mbar).
The month with the lowest atmospheric pressure is June (1015.1mbar).

Average wind speed in September
Orth an der Donau, Austria
  • Average wind speed in September: 11.9km/h

The windiest month (with the highest average wind speed) is February (15.5km/h).
The calmest month (with the lowest average wind speed) is August (11km/h).

Average humidity in September
Orth an der Donau, Austria
  • Average humidity in September: 67%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (61%).

Average rainfall in September
Orth an der Donau, Austria
  • Average rainfall in September: 17mm

The wettest month (with the highest rainfall) is June (32mm).
The driest month (with the least rainfall) is March (9mm).

Average rainfall days in September
Orth an der Donau, Austria
  • Average rainfall days in September: 7.8 days

The month with the highest number of rainy days is May (11 days).
The month with the least rainy days is February (6 days).

Average snowfall in September
Orth an der Donau, Austria
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (38mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in September
Orth an der Donau, Austria
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.6 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
Orth an der Donau, Austria
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in September: 9h and 3min

The months with the most sunshine are July and August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in September
Orth an der Donau, Austria
  • Average sunshine days in September: 20.7 days

The month with the most sunshine days is October (23.2 days).
The months with the least sunshine days are May and June (17.8 days).

Average UV index in September
Orth an der Donau, Austria
  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September
Orth an der Donau, Austria
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 24).

Average visibility in September
Orth an der Donau, Austria
  • Average visibility in September: 10km

The months with the highest visibility are March, April, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, May, November and December (9km).

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