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
The shift from August to September involves a decrease in the average high-temperature, dropping from a warm 25°C (77°F) to a comfortable 19.8°C (67.6°F). During the September nights, an average temperature of 11.6°C (52.9°F) is observed.Humidity
In Mierczany, the average relative humidity in September is 73%.Rainfall
In September, in Mierczany, the rain falls for 12.3 days. Throughout September, 26mm (1.02") of precipitation is accumulated. In Mierczany, Poland, during the entire year, the rain falls for 155.3 days and collects up to 340mm (13.39") of precipitation.Snowfall
In Mierczany, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 40min.On the first day of the month, sunrise is at 06:12 and sunset at 19:47. On the last day of September, in Mierczany, sunrise is at 07:00 and sunset at 18:39 CEST.
Sunshine
In Mierczany, the average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 4 during September translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. Around midday, solar radiation is most harmful; hence, exposure should be limited. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Mierczany?
What is the average humidity in September in Mierczany?
How much does it rain in Mierczany in September?
When it does not snow in Mierczany?
Does it snow in Mierczany in September?
What is the average length of the day in September in Mierczany?
What time are sunrise and sunset in September in Mierczany?
How many hours of sunshine does Mierczany have in September?
What is the UV index reading in September in Mierczany?
Average temperature in September
Mierczany, Poland
- Average high temperature in September: 19.8°C
The warmest month (with the highest average high temperature) is August (25°C).
The month with the lowest average high temperature is January (2°C).
- Average low temperature in September: 11.6°C
The month with the highest average low temperature is August (15.2°C).
The coldest month (with the lowest average low temperature) is January (-2.1°C).
Average pressure in September
Mierczany, Poland
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is October (1017.4mbar).
The month with the lowest atmospheric pressure is November (1014.3mbar).
Average wind speed in September
Mierczany, Poland
- Average wind speed in September: 10.9km/h
The windiest month (with the highest average wind speed) is December (14.8km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).
Average humidity in September
Mierczany, Poland
- Average humidity in September: 73%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Mierczany, Poland
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is July (53mm).
The driest month (with the least rainfall) is April (13mm).
Average rainfall days in September
Mierczany, Poland
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is February (9.5 days).
Average snowfall in September
Mierczany, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (50mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Mierczany, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mierczany, 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 4min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are January and December (Average sunshine: 3h and 24min).
Average sunshine days in September
Mierczany, Poland
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is October (17.2 days).
The month with the least sunshine days is January (10.9 days).
Average UV index in September
Mierczany, 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
Mierczany, Poland
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Mierczany, Poland
- Average visibility in September: 9km
The months with the highest visibility are June and August (10km).
The months with the lowest visibility are January, February, November and December (8km).
