September weather forecast
Swinoujscie, Poland

September

Weather in September

As September rolls in, Swinoujscie begins its transition from warm summers to cooler autumns. The dip in temperatures becomes noticeable, yet the weather mostly remains pleasant and inviting. The rainfall recedes to an average of 19mm (0.75") marking the shift in seasons. Despite the decrease in sunlight hours, the UV index remains moderately high, signaling the extended stay of the summer sun. The rising wind speed brings with it a chilly hint of the impending fall.

Temperature

September's arrival in Swinoujscie aligns with a minor decrease in average high-temperatures, from August's pleasant 21.4°C (70.5°F) to a refreshing 17.7°C (63.9°F). Swinoujscie maintains a consistent average nighttime low-temperature of 13.4°C (56.1°F) throughout September.

Humidity

In Swinoujscie, the average relative humidity in September is 76%.

Rainfall

In Swinoujscie, during September, the rain falls for 10.1 days and regularly aggregates up to 19mm (0.75") of precipitation. Throughout the year, there are 140.2 rainfall days, and 279mm (10.98") of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Swinoujscie.

Daylight

In September, the average length of the day is 12h and 41min.
On the first day of September in Swinoujscie, sunrise is at 06:12 and sunset at 19:53. On the last day of the month, sunrise is at 07:04 and sunset at 18:41 CEST.

Sunshine

In September, the average sunshine is 8.7h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily maximum UV index of 4 in September translates into the following instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.

Frequently asked questions

What are the temperatures in Swinoujscie in September?
September temperatures in Swinoujscie vary between a high-temperature of 17.7°C (63.9°F) and a low-temperature of 13.4°C (56.1°F).
What is the average humidity in September in Swinoujscie?
In Swinoujscie, Poland, the average relative humidity in September is 76%.
How many days does it rain in September in Swinoujscie?
In Swinoujscie, in September, it is raining for 10.1 days, with typically 19mm (0.75") of accumulated precipitation.
When it does not snow in Swinoujscie?
In Swinoujscie, Poland, snow does not fall in May through October.
How many hours of daylight does Swinoujscie have in September?
The average day length in September in Swinoujscie is 12h and 41min.
When are sunrise and sunset in September in Swinoujscie?
In September, on the first day of the month, sunrise is at 06:12 and sunset at 19:53. On the last day of the month, sunrise is at 07:04 and sunset at 18:41 CEST.
How long on average sun shines in September in Swinoujscie?
In September, the average sunshine duration in Swinoujscie, Poland, is 8.7h.
What is the UV index intensity in September in Swinoujscie?
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
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
Average temperature in September - Swinoujscie, Poland
Average temperature in September
Swinoujscie, Poland
  • Average high temperature in September: 17.7°C

The warmest month (with the highest average high temperature) is August (21.4°C).
The month with the lowest average high temperature is January (2.3°C).

  • Average low temperature in September: 13.4°C

The month with the highest average low temperature is August (16.6°C).
The coldest months (with the lowest average low temperature) are January and February (-0.3°C).

Average pressure in September - Swinoujscie, Poland
Average pressure in September
Swinoujscie, Poland
  • Average pressure in September: 1016.4mbar

The month with the highest atmospheric pressure is September (1016.4mbar).
The month with the lowest atmospheric pressure is November (1012.9mbar).

Average wind speed in September - Swinoujscie, Poland
Average wind speed in September
Swinoujscie, Poland
  • Average wind speed in September: 18.9km/h

The windiest month (with the highest average wind speed) is December (24km/h).
The calmest month (with the lowest average wind speed) is August (16.7km/h).

Average humidity in September - Swinoujscie, Poland
Average humidity in September
Swinoujscie, Poland
  • Average humidity in September: 76%

The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is August (74%).

Average rainfall in September - Swinoujscie, Poland
Average rainfall in September
Swinoujscie, Poland
  • Average rainfall in September: 19mm

The wettest month (with the highest rainfall) is August (40mm).
The driest month (with the least rainfall) is April (13mm).

Average rainfall days in September - Swinoujscie, Poland
Average rainfall days in September
Swinoujscie, Poland
  • Average rainfall days in September: 10.1 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (8.6 days).

Average snowfall in September - Swinoujscie, Poland
Average snowfall in September
Swinoujscie, Poland
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (18mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in September - Swinoujscie, Poland
Average snowfall days in September
Swinoujscie, Poland
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September / Average sunshine in September - Swinoujscie, Poland
Average daylight in September /
Average sunshine in September
Swinoujscie, Poland
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 30min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The months with the least sunshine are January and December (Average sunshine: 3h and 12min).

Average sunshine days in September - Swinoujscie, Poland
Average sunshine days in September
Swinoujscie, Poland
  • Average sunshine days in September: 16.9 days

The month with the most sunshine days is April (17.7 days).
The month with the least sunshine days is July (12.4 days).

Average UV index in September - Swinoujscie, Poland
Average UV index in September
Swinoujscie, 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 January (UV index 1).

Average cloud cover in September - Swinoujscie, Poland
Average cloud cover in September
Swinoujscie, Poland
  • Average cloud cover in September: 38

The month with the most cloud cover is December (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in September - Swinoujscie, Poland
Average visibility in September
Swinoujscie, Poland
  • Average visibility in September: 10km

The months with the highest visibility are March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February and December (9km).

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