September weather forecastStary Łom, Poland

September

Weather in September

September, the first month of the autumn in Stary Łom, is still a comfortable month, with an average temperature ranging between min 10.8°C (51.4°F) and max 18.8°C (65.8°F).

Temperature

The onset of September brings a small change in high-temperatures, falling from a warm 24.2°C (75.6°F) in August to a comfortable 18.8°C (65.8°F). September's average low-temperature reading in Stary Łom settles at a cool 10.8°C (51.4°F).

Humidity

The average relative humidity in September is 74%.

Rainfall

In Stary Łom, Poland, in September, it is raining for 12 days, with typically 30mm (1.18") of accumulated precipitation. In Stary Łom, during the entire year, the rain falls for 170.7 days and collects up to 502mm (19.76") of precipitation.

Snowfall

June 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 06:10 and sunset at 19:42. On the last day of the month, sunrise is at 06:56 and sunset at 18:36 CEST.

Sunshine

In September, the average sunshine in Stary Łom, Poland, is 8.7h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: A daily maximum UV index of 4 in September translates into the following instructions:
Exercise prevention - Warding off sunburn is urged. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.

Frequently asked questions

The average high-temperature and low-temperature in Stary Łom, Poland, during September are 18.8°C (65.8°F) and 10.8°C (51.4°F) respectively.

In September, the average relative humidity in Stary Łom is 74%.

In Stary Łom, Poland, in September, it is raining for 12 days, with typically 30mm (1.18") of accumulated precipitation.

June through September are months without snowfall in Stary Łom, Poland.

In Stary Łom, in September, it doesn't snow. In October, it regularly snows.

The average day length in September in Stary Łom, Poland, is 12h and 38min.

In September, on the first day of the month, sunrise is at 06:10 and sunset at 19:42. On the last day of the month, in Stary Łom, sunrise is at 06:56 and sunset at 18:36 CEST.

The average sunshine duration in September in Stary Łom is 8.7h.

In Stary Łom, Poland, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Stary Łom, Poland

  • Average high temperature in September: 18.8°C

The warmest month (with the highest average high temperature) is August (24.2°C).
The month with the lowest average high temperature is January (1.3°C).

  • Average low temperature in September: 10.8°C

The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is January (-2.8°C).

Average pressure in September
Stary Łom, Poland

  • Average pressure in September: 1017.6mbar

The month with the highest atmospheric pressure is October (1018mbar).
The month with the lowest atmospheric pressure is July (1014.6mbar).

Average wind speed in September
Stary Łom, Poland

  • Average wind speed in September: 10.6km/h

The windiest month (with the highest average wind speed) is December (14km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).

Average humidity in September
Stary Łom, Poland

  • Average humidity in September: 74%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (69%).

Average rainfall in September
Stary Łom, Poland

  • Average rainfall in September: 30mm

The wettest month (with the highest rainfall) is May (65mm).
The driest months (with the least rainfall) are April and November (27mm).

Average rainfall days in September
Stary Łom, Poland

  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is February (9.2 days).

Average snowfall in September
Stary Łom, Poland

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (169mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Stary Łom, Poland

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Stary Łom, Poland

  • Average daylight in September: 12h and 36min

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: 8h and 42min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

Average sunshine days in September
Stary Łom, Poland

  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is September (15.7 days).
The month with the least sunshine days is January (8 days).

Average UV index in September
Stary Łom, Poland

  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is November (UV index 1).

Average cloud cover in September
Stary Łom, Poland

  • Average cloud cover in September: 39

The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in September
Stary Łom, Poland

  • Average visibility in September: 9km

The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (7km).