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September Weather in Nykvarn, Sweden

Last updated: August 27, 2025

In Nykvarn, Sweden, the average temperature in September hovers around 13°C (55°F), with a minimum of 0°C (32°F) and a maximum reaching 25°C (78°F). Expect an average precipitation of 57 mm (2.3 in) spread across 9 days, accompanied by a notable average humidity of 83%.

September Temperature in Nykvarn

In September in Nykvarn, the average temperature is 13°C (55°F). The maximum can reach 25°C (78°F), while the minimum can drop to as low as 0°C (32°F). Therefore, travelers should be prepared for a mix of mild to warm days and cooler nights.

September Weather in Nykvarn: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Nykvarn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nykvarn, September typically has an average temperature of 13°C (55°F), with highs reaching up to 25°C (78°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec313035415162646255463933
Data source: Temperature data for Nykvarn generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Nykvarn

In Nykvarn in September, the precipitation amount is 57 mm (2.3 in) over the course of 9 days.

September Precipitation Trends in Nykvarn

The chart displays monthly precipitation patterns in Nykvarn, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Nykvarn, September typically receives around 57 mm (2.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec373242296163658357684257
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Nykvarn

In Nykvarn in September humidity is 83%. With an average temperature of 13°C (55°F), this humidity feels like a damp embrace, often leaving travelers feeling slightly sticky and in need of frequent breaks in the shade.

September Average Humidity in Nykvarn

This chart illustrates the average monthly humidity levels in Nykvarn, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Nykvarn is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%88%82%71%69%67%73%83%89%91%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Nykvarn

In Nykvarn in September, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Nykvarn for better planning.

Maximum UV Index Levels in Nykvarn for September

The chart shows the monthly maximum UV Index (UVI) for Nykvarn in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Nykvarn typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123457754211
Data source: Nykvarn September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Nykvarn Compares to Other Months

Weather in Nykvarn varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Nykvarn, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Nykvarn, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)37 mm (1.4 inches)91%low
February Weather-1°C (31°F)32 mm (1.3 inches)89%low
March Weather2°C (35°F)42 mm (1.6 inches)88%moderate
April Weather5°C (42°F)29 mm (1.2 inches)82%moderate
May Weather11°C (51°F)61 mm (2.4 inches)71%moderate
June Weather17°C (62°F)63 mm (2.5 inches)69%high
July Weather18°C (65°F)65 mm (2.5 inches)67%high
August Weather17°C (63°F)83 mm (3.2 inches)72%moderate
September Weather13°C (55°F)57 mm (2.3 inches)83%moderate
October Weather8°C (46°F)68 mm (2.7 inches)89%low
November Weather4°C (39°F)42 mm (1.7 inches)91%low
December Weather0°C (33°F)57 mm (2.3 inches)90%low

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