September weather forecastChełmża, Poland
September
Weather in September
September, the first month of the autumn in Chełmża, is also an enjoyable month, with an average temperature fluctuating between 19.4°C (66.9°F) and 11°C (51.8°F).Temperature
The transition into September is accompanied by a temperature decrease, with the average high-temperature shifting from a warm 24.5°C (76.1°F) in August to an enjoyable 19.4°C (66.9°F). Chełmża reports an average nighttime low-temperature of 11°C (51.8°F) in September.Humidity
In Chełmża, the average relative humidity in September is 72%.Rainfall
In Chełmża, in September, it is raining for 8.2 days, with typically 21mm (0.83") of accumulated precipitation. Throughout the year, there are 126.1 rainfall days, and 320mm (12.6") of precipitation is accumulated.Snowfall
In Chełmża, snow does not fall in June through September.Daylight
In Chełmża, the average length of the day in September is 12h and 41min.On the first day of the month, sunrise is at 05:56 and sunset at 19:34. On the last day of September, sunrise is at 06:46 and sunset at 18:24 CEST.
Sunshine
The average sunshine in September in Chełmża is 8.1h.UV index
In September, the average daily maximum UV index in Chełmża is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: In September, an average UV index of 4 transforms into the following instructions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chełmża, Poland
- Average high temperature in September: 19.4°C
The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (0.3°C).
- Average low temperature in September: 11°C
The month with the highest average low temperature is August (15.1°C).
The coldest month (with the lowest average low temperature) is January (-3.3°C).
Average pressure in September
Chełmża, Poland
- Average pressure in September: 1016.8mbar
The month with the highest atmospheric pressure is October (1017.4mbar).
The month with the lowest atmospheric pressure is July (1013.5mbar).
Average wind speed in September
Chełmża, Poland
- Average wind speed in September: 11.9km/h
The windiest month (with the highest average wind speed) is December (14.2km/h).
The calmest month (with the lowest average wind speed) is August (10.7km/h).
Average humidity in September
Chełmża, Poland
- Average humidity in September: 72%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (66%).
Average rainfall in September
Chełmża, Poland
- Average rainfall in September: 21mm
The wettest month (with the highest rainfall) is May (47mm).
The driest month (with the least rainfall) is April (15mm).
Average rainfall days in September
Chełmża, Poland
- Average rainfall days in September: 8.2 days
The months with the highest number of rainy days are May and July (14.8 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in September
Chełmża, Poland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (62mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Chełmża, Poland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Chełmża, Poland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Chełmża, Poland
- Average sunshine days in September: 20.5 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is July (13.8 days).
Average UV index in September
Chełmża, Poland
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Chełmża, Poland
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Chełmża, Poland
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February, November and December (8km).
