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
The shift from August to September involves a decrease in the average high-temperature, dropping from a warm 24.1°C (75.4°F) to an enjoyable 18.3°C (64.9°F). Świsłoczany reports an average low-temperature of 9.1°C (48.4°F) during the nights of September.Humidity
In September, the average relative humidity is 77%.Rainfall
In Świsłoczany, in September, it is raining for 13.4 days, with typically 38mm (1.5") of accumulated precipitation. Throughout the year, in Świsłoczany, there are 158 rainfall days, and 495mm (19.49") of precipitation is accumulated.Snowfall
In Świsłoczany, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 41min.On the first day of the month, sunrise is at 05:35 and sunset at 19:13. On the last day of September, sunrise is at 06:25 and sunset at 18:03 CEST.
Sunshine
The average sunshine in September is 7.3h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. 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?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Świsłoczany have in September?
What time are sunrise and sunset in September in Świsłoczany?
How long on average sun shines in September?
What is the UV index intensity in September in Świsłoczany?
Average temperature in September
Świsłoczany, Poland
- Average high temperature in September: 18.3°C
The warmest month (with the highest average high temperature) is July (24.3°C).
The month with the lowest average high temperature is January (-1.9°C).
- Average low temperature in September: 9.1°C
The month with the highest average low temperature is July (13.5°C).
The coldest month (with the lowest average low temperature) is January (-5.8°C).
Average pressure in September
Świsłoczany, Poland
- Average pressure in September: 1016.9mbar
The month with the highest atmospheric pressure is October (1018.4mbar).
The month with the lowest atmospheric pressure is July (1013mbar).
Average wind speed in September
Świsłoczany, Poland
- Average wind speed in September: 11.2km/h
The windiest month (with the highest average wind speed) is December (13.3km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).
Average humidity in September
Świsłoczany, Poland
- Average humidity in September: 77%
The month with the highest relative humidity is January (93%).
The months with the lowest relative humidity are April and August (71%).
Average rainfall in September
Świsłoczany, Poland
- Average rainfall in September: 38mm
The wettest months (with the highest rainfall) are May and July (64mm).
The driest months (with the least rainfall) are February and April (25mm).
Average rainfall days in September
Świsłoczany, Poland
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is February (7 days).
Average snowfall in September
Świsłoczany, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (172mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Świsłoczany, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18 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
Świsłoczany, Poland
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 1h and 30min).
Average sunshine days in September
Świsłoczany, Poland
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is October (16.3 days).
The month with the least sunshine days is July (8.4 days).
Average UV index in September
Świsłoczany, Poland
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Świsłoczany, Poland
- Average cloud cover in September: 44
The months with the most cloud cover are January and February (Cloud cover 81).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Świsłoczany, Poland
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August and September (9km).
The months with the lowest visibility are January and February (6km).
