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
As September commences, the average high-temperature shows a reduction, transitioning from a moderately hot 24.9°C (76.8°F) in August to a refreshing 19°C (66.2°F). In the month of September, the average low-temperature usually rests at a cool 10.9°C (51.6°F).Humidity
The average relative humidity in September is 72%.Rainfall
In Łomianki, in September, it is raining for 9 days, with typically 26mm (1.02") of accumulated precipitation. In Łomianki, during the entire year, the rain falls for 122.8 days and collects up to 300mm (11.81") of precipitation.Snowfall
In Łomianki, snow does not fall in June through September.Daylight
In September, the average length of the day in Łomianki is 12h and 40min.On the first day of the month, sunrise is at 05:48 and sunset at 19:24. On the last day of September, sunrise is at 06:36 and sunset at 18:15 CEST.
Sunshine
The average sunshine in September is 8h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum UV index of 4 in September translates into the following recommendations:
Be vigilant - Preventing sunburn is recommended. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. 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 Łomianki?
What is the average humidity in September in Łomianki?
How many days does it rain in September in Łomianki?
When it does not snow in Łomianki?
Does it snow in Łomianki in September?
How many hours of daylight does Łomianki have in September?
When are sunrise and sunset in September in Łomianki?
How long on average sun shines in September in Łomianki?
What is the UV index reading in September in Łomianki?
Average temperature in September
Łomianki, Poland
- Average high temperature in September: 19°C
The warmest month (with the highest average high temperature) is August (24.9°C).
The month with the lowest average high temperature is January (-0.4°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is August (15°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).
Average pressure in September
Łomianki, Poland
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is October (1018.1mbar).
The month with the lowest atmospheric pressure is July (1013.5mbar).
Average wind speed in September
Łomianki, Poland
- Average wind speed in September: 11.5km/h
The windiest month (with the highest average wind speed) is December (13.7km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).
Average humidity in September
Łomianki, Poland
- Average humidity in September: 72%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (66%).
Average rainfall in September
Łomianki, Poland
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is May (47mm).
The driest months (with the least rainfall) are April and November (15mm).
Average rainfall days in September
Łomianki, Poland
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in September
Łomianki, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (80mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Łomianki, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Łomianki, Poland
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Łomianki, Poland
- Average sunshine days in September: 19 days
The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is February (14.2 days).
Average UV index in September
Łomianki, Poland
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Łomianki, Poland
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Łomianki, Poland
- Average visibility in September: 9km
The months with the highest visibility are June and August (10km).
The month with the lowest visibility is January (7km).
