September weather forecast and climate
Stary Łom, Poland

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

Temperature

In September, the average high-temperature drops, from a moderately hot 24.2°C (75.6°F) in August, to a comfortable 18.8°C (65.8°F). In September, in Stary Łom, the average low-temperature is 10.8°C (51.4°F).

Humidity

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

Rainfall

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

Snowfall

In Stary Łom snow does not fall in June through September.

Daylight

In Stary Łom, the average length of the day in September is 12.6h.

Sunshine

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

UV index

In September, the average daily maximum UV index in Stary Łom is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in September in Stary Łom?

The average high-temperature, in September, is 18.8°C (65.8°F), while the average low-temperature is 10.8°C (51.4°F).

What is the average humidity in September in Stary Łom?

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

How much does it rain in Stary Łom in September?

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

Does it snow in Stary Łom in September?

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

When it does not snow in Stary Łom?

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

What is the average length of the day in September in Stary Łom?

In Stary Łom, Poland, the average length of the day in September is 12.6h.

How long on average sun shines in September in Stary Łom?

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

What is the UV index reading in September in Stary Łom?

In Stary Łom, Poland, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to the Sun's UV rays.
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 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).
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).
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: 12.6h

The month with the longest days is June (Average daylight: 16.5h).
The month with the shortest days is December (Average daylight: 8h).

  • Average sunshine in September: 8.7h

The month with the most sunshine is August (Average sunshine: 10.3h).
The month with the least sunshine is January (Average sunshine: 3.4h).

Average UV index in September - Stary Łom, Poland
  • Average UV index in September: 4

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).