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 sea temperature 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 arrival of September in Piteå, Sweden, corresponds with a reduction in the average high-temperature, down from August's enjoyable 18.1°C (64.6°F) to a moderate 13°C (55.4°F). During September nights, Piteå records an average temperature of 7.3°C (45.1°F).Humidity
In September, the average relative humidity in Piteå is 79%.Rainfall
In September, the rain falls for 10.5 days. Throughout September, 24mm (0.94") of precipitation is accumulated. In Piteå, during the entire year, the rain falls for 93.1 days and collects up to 277mm (10.91") of precipitation.Snowfall
June through September are months without snowfall.Sea temperature
In Piteå, in September, the average water temperature is 11.9°C (53.4°F).Note: Caution: 11.9°C (53.4°F) temperatures below 10°C (50°F) during swimming can result in intense cold shock and quickened breathing.
Daylight
In September, the average length of the day is 13h and 5min.On the first day of the month, sunrise is at 05:13 and sunset at 19:53. On the last day of September, in Piteå, sunrise is at 06:42 and sunset at 18:05 CEST.
Sunshine
In Piteå, Sweden, the average sunshine in September is 7.7h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: An average UV index of 3 in September transforms into this advice:
Take necessary precautions - Suggestions to elude sunburn are provided. Around midday, solar radiation is most harmful; hence, exposure should be limited. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Piteå in September?
What is the average humidity in September in Piteå?
How much does it rain in Piteå in September?
When it does not snow in Piteå?
Does it snow in Piteå in September?
What is the water temperature in September in Piteå?
How many hours of daylight does Piteå have in September?
What time are sunrise and sunset in September in Piteå?
How many hours of sunshine does Piteå have in September?
What is the UV index intensity in September in Piteå?
Average temperature in September
Piteå, Sweden
- Average high temperature in September: 13°C
The warmest month (with the highest average high temperature) is July (19°C).
The month with the lowest average high temperature is January (-5.8°C).
- Average low temperature in September: 7.3°C
The month with the highest average low temperature is July (12.1°C).
The coldest month (with the lowest average low temperature) is February (-10.7°C).
Average pressure in September
Piteå, Sweden
- Average pressure in September: 1011mbar
The month with the highest atmospheric pressure is May (1014.1mbar).
The month with the lowest atmospheric pressure is December (1004.9mbar).
Average wind speed in September
Piteå, Sweden
- Average wind speed in September: 12.9km/h
The windiest month (with the highest average wind speed) is December (14.1km/h).
The calmest month (with the lowest average wind speed) is July (11.2km/h).
Average humidity in September
Piteå, Sweden
- Average humidity in September: 79%
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is June (66%).
Average rainfall in September
Piteå, Sweden
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is July (28mm).
The driest month (with the least rainfall) is February (18mm).
Average rainfall days in September
Piteå, Sweden
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is August (11.3 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in September
Piteå, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is January (156mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Piteå, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Piteå, Sweden
- Average sea temperature in September: 11.9°C
The best month for swimming (with the highest average sea temperature) is July (15.5°C).
The coldest month (with the lowest average sea temperature) is February (0.3°C).
Average daylight in September /
Average sunshine in September
Piteå, Sweden
- Average daylight in September: 13h and 1min
The month with the longest days is June (Average daylight: 22h and 0min).
The month with the shortest days is December (Average daylight: 3h and 42min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 54min).
The month with the least sunshine is December (Average sunshine: 1h and 24min).
Average sunshine days in September
Piteå, Sweden
- Average sunshine days in September: 17.9 days
The month with the most sunshine days is June (20.1 days).
The month with the least sunshine days is December (14.5 days).
Average UV index in September
Piteå, Sweden
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Piteå, Sweden
- Average cloud cover in September: 46
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in September
Piteå, Sweden
- Average visibility in September: 9km
The months with the highest visibility are June and July (10km).
The months with the lowest visibility are January, February, March and April (7km).
