September weather forecastLomza, Poland
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Lomza, Poland, with an average temperature ranging between max 18.5°C (65.3°F) and min 9.7°C (49.5°F).Temperature
The arrival of September corresponds with a reduction in the average high-temperature, down from August's warm 23.8°C (74.8°F) to a comfortable 18.5°C (65.3°F). September's average low-temperature reading in Lomza settles at a frosty 9.7°C (49.5°F).Humidity
The average relative humidity in September in Lomza is 75%.Rainfall
In September, the rain falls for 9.5 days. Throughout September, 22mm (0.87") of precipitation is accumulated. In Lomza, Poland, during the entire year, the rain falls for 130.4 days and collects up to 284mm (11.18") of precipitation.Snowfall
In Lomza, Poland, snow does not fall in June through September.Daylight
In Lomza, the average length of the day in September is 12h and 41min.On the first day of September, sunrise is at 05:42 and sunset at 19:20. On the last day of the month, sunrise is at 06:32 and sunset at 18:10 CEST.
Sunshine
In September, the average sunshine in Lomza is 7.6h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 3 suggests this advice:
Take necessary precautions - Protection from skin and eye injury is mandatory. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lomza, Poland
- Average high temperature in September: 18.5°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 (-1.2°C).
- Average low temperature in September: 9.7°C
The month with the highest average low temperature is July (13.8°C).
The coldest month (with the lowest average low temperature) is January (-4.6°C).
Average pressure in September
Lomza, Poland
- Average pressure in September: 1016.9mbar
The month with the highest atmospheric pressure is October (1017.9mbar).
The month with the lowest atmospheric pressure is July (1013.2mbar).
Average wind speed in September
Lomza, Poland
- Average wind speed in September: 11.2km/h
The windiest month (with the highest average wind speed) is December (13km/h).
The calmest month (with the lowest average wind speed) is August (9.7km/h).
Average humidity in September
Lomza, Poland
- Average humidity in September: 75%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (69%).
Average rainfall in September
Lomza, Poland
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is May (42mm).
The driest months (with the least rainfall) are February and March (14mm).
Average rainfall days in September
Lomza, Poland
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in September
Lomza, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (75mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Lomza, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lomza, Poland
- Average daylight in September: 12h and 42min
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 36min).
- Average sunshine in September: 7h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 2h and 18min).
Average sunshine days in September
Lomza, Poland
- Average sunshine days in September: 17.8 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is February (10.9 days).
Average UV index in September
Lomza, Poland
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Lomza, Poland
- Average cloud cover in September: 42
The months with the most cloud cover are January and February (Cloud cover 78).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Lomza, Poland
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).
