September weather forecastOpacz, Poland
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Opacz, Poland, with an average temperature fluctuating between 10.6°C (51.1°F) and 19.1°C (66.4°F).Temperature
Opacz's weather in September involves a decrease in the average high-temperature, moving down from August's moderately hot 24.9°C (76.8°F) to a comfortable 19.1°C (66.4°F). The mean low-temperature during September nights in Opacz is a fresh 10.6°C (51.1°F).Humidity
In September, the average relative humidity is 73%.Rainfall
In September, in Opacz, the rain falls for 8.6 days. Throughout September, 23mm (0.91") of precipitation is accumulated. In Opacz, during the entire year, the rain falls for 109.6 days and collects up to 283mm (11.14") of precipitation.Snowfall
May through September are months without snowfall in Opacz.Daylight
In Opacz, the average length of the day in September is 12h and 39min.On the first day of September in Opacz, sunrise is at 05:47 and sunset at 19:22. On the last day of the month, sunrise is at 06:35 and sunset at 18:14 CEST.
Sunshine
In Opacz, the average sunshine in September is 8h.UV index
In September, the average daily maximum UV index in Opacz, Poland, is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: A daily maximum UV index of 3 in September translates into the following instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Opacz, Poland
- Average high temperature in September: 19.1°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 (-0.5°C).
- Average low temperature in September: 10.6°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is January (-4°C).
Average pressure in September
Opacz, Poland
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is October (1018.2mbar).
The month with the lowest atmospheric pressure is July (1013.5mbar).
Average wind speed in September
Opacz, Poland
- Average wind speed in September: 11.6km/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 (10.3km/h).
Average humidity in September
Opacz, 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
Opacz, Poland
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is May (41mm).
The driest months (with the least rainfall) are April and November (14mm).
Average rainfall days in September
Opacz, Poland
- Average rainfall days in September: 8.6 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in September
Opacz, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (80mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Opacz, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.2 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
Opacz, Poland
- Average daylight in September: 12h and 42min
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 42min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Opacz, Poland
- Average sunshine days in September: 20.4 days
The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is February (14.6 days).
Average UV index in September
Opacz, Poland
- Average UV index in September: 3
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 in September
Opacz, 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
Opacz, 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 and February (7km).
