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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Siennów, Poland, with an average temperature fluctuating between -4.5°C (23.9°F) and -0.1°C (31.8°F). In Siennów, January records the lowest average temperatures, peaking at -0.1°C (31.8°F) and reaching a low of -4.5°C (23.9°F). Weather in January »
Weather in February
February, the last month of the winter in Siennów, is a cold month, with an average temperature fluctuating between 2.1°C (35.8°F) and -3.4°C (25.9°F). During February, Siennów observes a subtle ascent to a cold 2.1°C (35.8°F) from January's -0.1°C (31.8°F) in the average high-temperature. Weather in February »
Weather in March
March, the first month of the spring in Siennów, is a frosty month, with temperature in the range of an average low of 0.4°C (32.7°F) and an average high of 7.6°C (45.7°F). March's arrival coincides with a temperature rise, moving from February's cold 2.1°C (35.8°F) to a chilly 7.6°C (45.7°F). Weather in March »
Weather in April
April is a refreshing spring month in Siennów, Poland, with an average temperature varying between 4.8°C (40.6°F) and 15.1°C (59.2°F). April's arrival brings a change in high-temperatures, moving from a chilly 7.6°C (45.7°F) in March to a refreshing 15.1°C (59.2°F). Weather in April »
Weather in May
May, the last month of the spring in Siennów, is a comfortable month, with an average temperature varying between 19.4°C (66.9°F) and 8.5°C (47.3°F). With the onset of May, Siennów experiences a subtle temperature shift, with the average high-temperature moving from a refreshing 15.1°C (59.2°F) in April to a comfortable 19.4°C (66.9°F). Weather in May »
Weather in June
June, the first month of the summer in Siennów, is a warm month, with temperature in the range of an average low of 12.7°C (54.9°F) and an average high of 23.7°C (74.7°F). With the onset of June, Siennów's average high-temperature experiences a slight rise, moving from May's refreshing 19.4°C (66.9°F) to a moderately hot 23.7°C (74.7°F). Weather in June »
Weather in July
July, like June, in Siennów, Poland, is another warm summer month, with an average temperature fluctuating between 25.4°C (77.7°F) and 13.9°C (57°F). The transition from June to July brings an average high-temperature of a still warm 25.4°C (77.7°F), barely different from June's 23.7°C (74.7°F). Weather in July »
Weather in August
August, the last month of the summer in Siennów, is also a moderately hot month, with temperature in the range of an average high of 25.8°C (78.4°F) and an average low of 13.9°C (57°F). August brings the highest temperatures, with an average high of 25.8°C (78.4°F) and an average low of 13.9°C (57°F). Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Siennów, Poland, with an average temperature ranging between max 20°C (68°F) and min 9.8°C (49.6°F). The arrival of September signals a shift in temperature, down from a moderately hot 25.8°C (78.4°F) in August to an agreeable 20°C (68°F). Weather in September »
Weather in October
October, like September, is another mild autumn month in Siennów, Poland, with an average temperature ranging between min 5.5°C (41.9°F) and max 13.4°C (56.1°F). Siennów's weather in October involves a decrease in the average high-temperature, moving down from September's agreeable 20°C (68°F) to a mild 13.4°C (56.1°F). Weather in October »
Weather in November
November, the last month of the autumn in Siennów, is another chilly month, with an average temperature ranging between min 2.5°C (36.5°F) and max 8.1°C (46.6°F). The arrival of November corresponds with a shift in temperature, down from a refreshing 13.4°C (56.1°F) in October to a frosty 8.1°C (46.6°F). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Siennów, Poland, with an average temperature varying between 2.2°C (36°F) and -2.2°C (28°F). Transition into December marks a drop in the average high-temperature, moving from a frosty 8.1°C (46.6°F) in November to a wintry 2.2°C (36°F). Weather in December »
Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Siennów?
The coldest time of the year in Siennów is January, with temperatures averaging a high of -0.1°C (31.8°F) and a low of -4.5°C (23.9°F).
What is the most humid month in Siennów?
With an average relative humidity of 89%, January is the most humid month in Siennów.
What is the driest month in Siennów?
January is the month with the least rainfall in Siennów. Rain falls for 7.4 days and accumulates 15mm (0.59") of precipitation.
How much does it rain in Siennów?
Throughout the year, there are 124.8 rainfall days, and 295mm (11.61") of precipitation is accumulated.
When does it snow in Siennów?
Months with snowfall in Siennów, Poland, are January through April, October through December.
How many days does it snow in Siennów?
In Siennów, Poland, during the entire year, snow falls for 47.1 days and aggregates up to 223mm (8.78") of snow.
What is the month with the least sunshine in Siennów?
January has the least sunshine of the year in Siennów, with an average of 2.9h of sunshine.
What is the month with the lowest UV index in Siennów?
The months with the lowest UV index in Siennów, Poland, are January, November and December, with an average maximum UV index of 1.
What is the rainiest month in Siennów?
The month with the most rainfall is May, when the rain falls for 15.6 days and typically aggregates up to 47mm (1.85") of precipitation.
When it does not snow in Siennów?
May through September are months without snowfall.
When are the longest days in Siennów?
The month with the longest days in Siennów is June, with an average of 16h and 18min of daylight.
When is the highest UV index in Siennów?
With an average maximum UV index of 6, July is the month with the highest UV index in Siennów, Poland.
What are the warmest months in Siennów?
With its average high temperature of 25.8°C (78.4°F) and a low of 13.9°C (57°F), August is regarded as the warmest month in Siennów.
What is the least humid month in Siennów?
August is the least humid month, with an average relative humidity of 68%.
What month has the most sunshine in Siennów?
The month with the most sunshine is August, with an average of 10.6h of sunshine.
When is Daylight Saving Time (DST) in Siennów?
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends in Siennów, and the time zone changes from CEST to CET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 02:00, and the time zone reverts from CET to CEST.
When does it snow the most in Siennów?
December is the month with the most snowfall in Siennów. Snow falls for 11 days and accumulates 54mm (2.13") of snow.
What is the month with the shortest days in Siennów?
December has the shortest days of the year in Siennów, Poland, with an average of 8h and 12min of daylight.
Average temperature
Siennów, Poland
The warmest month (with the highest average high temperature) is August (25.8°C).
The month with the lowest average high temperature is January (-0.1°C).
The months with the highest average low temperature are July and August (13.9°C).
The coldest month (with the lowest average low temperature) is January (-4.5°C).
Average pressure
Siennów, Poland
- Average pressure in January:
1018.2mbar - Average pressure in February:
1017.4mbar - Average pressure in March:
1016.4mbar - Average pressure in April:
1015.7mbar - Average pressure in May:
1014.8mbar - Average pressure in June:
1014.3mbar
- Average pressure in July:
1014.2mbar - Average pressure in August:
1016.7mbar - Average pressure in September:
1017.7mbar - Average pressure in October:
1019.2mbar - Average pressure in November:
1017.7mbar - Average pressure in December:
1018.6mbar
The month with the highest atmospheric pressure is October (1019.2mbar).
The month with the lowest atmospheric pressure is July (1014.2mbar).
Average wind speed
Siennów, Poland
- Average wind speed in January:
13.2km/h - Average wind speed in February:
12.7km/h - Average wind speed in March:
12.7km/h - Average wind speed in April:
11.4km/h - Average wind speed in May:
10.5km/h - Average wind speed in June:
10.1km/h
- Average wind speed in July:
9.9km/h - Average wind speed in August:
9.3km/h - Average wind speed in September:
10.5km/h - Average wind speed in October:
11.7km/h - Average wind speed in November:
12km/h - Average wind speed in December:
13.9km/h
The windiest month (with the highest average wind speed) is December (13.9km/h).
The calmest month (with the lowest average wind speed) is August (9.3km/h).
Average humidity
Siennów, Poland
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (68%).
Average rainfall
Siennów, Poland
The wettest month (with the highest rainfall) is May (47mm).
The driest month (with the least rainfall) is January (15mm).
Average rainfall days
Siennów, Poland
- Average rainfall days in January:
7.4 days - Average rainfall days in February:
6.4 days - Average rainfall days in March:
10.3 days - Average rainfall days in April:
10.4 days - Average rainfall days in May:
15.6 days - Average rainfall days in June:
15.3 days
- Average rainfall days in July:
14.8 days - Average rainfall days in August:
10.4 days - Average rainfall days in September:
8.9 days - Average rainfall days in October:
8.5 days - Average rainfall days in November:
8.7 days - Average rainfall days in December:
8.1 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (6.4 days).
Average snowfall
Siennów, Poland
The month with the highest snowfall is December (54mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days
Siennów, Poland
- Average snowfall days in January:
13.9 days - Average snowfall days in February:
10.8 days - Average snowfall days in March:
6 days - Average snowfall days in April:
1.1 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.6 days - Average snowfall days in November:
3.6 days - Average snowfall days in December:
11 days
The month with the highest number of snowfall days is January (13.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Siennów, Poland
- Average daylight in January:
8h and 4min - Average daylight in February:
10h and 1min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 5min - Average daylight in May:
15h and 2min - Average daylight in June:
16h and 2min
- Average daylight in July:
15h and 5min - Average daylight in August:
14h and 2min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 4min - Average daylight in November:
9h and 1min - Average daylight in December:
8h and 1min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in January:
2h and 5min - Average sunshine in February:
3h and 0min - Average sunshine in March:
5h and 0min - Average sunshine in April:
8h and 3min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 1min
- Average sunshine in July:
9h and 4min - Average sunshine in August:
10h and 4min - Average sunshine in September:
7h and 5min - Average sunshine in October:
6h and 1min - Average sunshine in November:
4h and 4min - Average sunshine in December:
3h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days
Siennów, Poland
- Average sunshine days in January:
12.3 days - Average sunshine days in February:
12.9 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
16.5 days - Average sunshine days in May:
12.8 days - Average sunshine days in June:
11.8 days
- Average sunshine days in July:
13.9 days - Average sunshine days in August:
17.6 days - Average sunshine days in September:
18.6 days - Average sunshine days in October:
19.5 days - Average sunshine days in November:
16.8 days - Average sunshine days in December:
13.9 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is June (11.8 days).
Average UV index
Siennów, Poland
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover
Siennów, Poland
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility
Siennów, Poland
The months with the highest visibility are March, April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January and February (7km).
