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
Weather in September
Temperature
The decrease of average high-temperatures is mild in September, with a decline from a moderately hot 25.2°C (77.4°F) in August to a refreshing 19.2°C (66.6°F). Serniawy's September nights cool down to an average low-temperature of 10.2°C (50.4°F).Humidity
The average relative humidity in September is 73%.Rainfall
In Serniawy, during September, the rain falls for 10.2 days and regularly aggregates up to 29mm (1.14") of precipitation. In Serniawy, during the entire year, the rain falls for 134.9 days and collects up to 426mm (16.77") of precipitation.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 38min.On the first day of September, sunrise is at 05:40 and sunset at 19:12. On the last day of the month, sunrise is at 06:26 and sunset at 18:06 CEST.
Sunshine
In Serniawy, the average sunshine in September is 7.6h.UV index
The average daily maximum UV index in September in Serniawy is 3. 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: An average UV index of 3 in September transforms into this advice:
Make use of precautions - Suggestions to resist sunburn are communicated. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Frequently asked questions
What are the temperatures in Serniawy in September?
What is the average humidity in September in Serniawy?
How many days does it rain in September in Serniawy?
When it does not snow in Serniawy?
Does it snow in Serniawy in September?
How many hours of daylight does Serniawy have in September?
When are sunrise and sunset in September in Serniawy?
How long on average sun shines in September in Serniawy?
What is the UV index reading in September in Serniawy?
Average temperature in September
Serniawy, Poland
- Average high temperature in September: 19.2°C
The warmest month (with the highest average high temperature) is August (25.2°C).
The month with the lowest average high temperature is January (-1°C).
- Average low temperature in September: 10.2°C
The month with the highest average low temperature is July (14.4°C).
The coldest month (with the lowest average low temperature) is January (-4.5°C).
Average pressure in September
Serniawy, Poland
- Average pressure in September: 1017.4mbar
The month with the highest atmospheric pressure is October (1018.9mbar).
The month with the lowest atmospheric pressure is July (1013.5mbar).
Average wind speed in September
Serniawy, Poland
- Average wind speed in September: 10.5km/h
The windiest month (with the highest average wind speed) is December (12.8km/h).
The calmest month (with the lowest average wind speed) is August (9.4km/h).
Average humidity in September
Serniawy, Poland
- Average humidity in September: 73%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Serniawy, Poland
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is May (66mm).
The driest month (with the least rainfall) is November (23mm).
Average rainfall days in September
Serniawy, Poland
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in September
Serniawy, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (168mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Serniawy, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.7 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
Serniawy, Poland
- 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: 7h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in September
Serniawy, Poland
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is August (18.7 days).
The month with the least sunshine days is February (9.8 days).
Average UV index in September
Serniawy, Poland
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Serniawy, Poland
- Average cloud cover in September: 41
The months with the most cloud cover are January and February (Cloud cover 79).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Serniawy, Poland
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (6km).
Serniawy, Poland
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