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September Weather in Roma, Sweden

Last updated: August 27, 2025

In September, the average temperature in Roma, Sweden is a pleasant 14°C (57°F). Expect to experience a range of temperatures, with a minimum of 3°C (37°F) and a maximum reaching 28°C (82°F). During this month, you can anticipate approximately 57 mm (2.2 in) of precipitation spread over 10 days, along with an average humidity of 83%. Stay prepared for a mix of conditions!

September Temperature in Roma

In September in Roma, the average temperature is 14°C (57°F). The maximum can reach 28°C (82°F), and the minimum can be as low as 3°C (37°F). Be prepared for a mix of warm and cool weather, making it an ideal time for outdoor adventures and layering up for comfort.

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

The chart illustrates September temperature patterns in Roma, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Roma, September typically has an average temperature of 14°C (57°F), with highs reaching up to 28°C (82°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec343336425162656457494336
Data source: Temperature data for Roma 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 Roma

In Roma in September, the precipitation amount is 57 mm (2.2 in) over a span of 10 days.

September Precipitation Trends in Roma

The chart displays monthly precipitation patterns in Roma, 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 Roma, September typically receives around 57 mm (2.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec403743223844817157705351
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Roma

In Roma in September, humidity is 83%. With an average temperature of 14°C (57°F), this humidity feels like you're stepping into a warm, damp embrace that can make outdoor activities quite uncomfortable, often leaving you sweaty and exhausted if you're not prepared with plenty of water and breathable clothing.

September Average Humidity in Roma

This chart illustrates the average monthly humidity levels in Roma, 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 Roma is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%87%87%84%86%85%84%83%85%85%82%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Roma

In Roma 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 Roma for better planning.

Maximum UV Index Levels in Roma for September

The chart shows the monthly maximum UV Index (UVI) for Roma 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 Roma typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123467764211
Data source: Roma 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 Roma Compares to Other Months

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

This table compares monthly weather conditions in Roma, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)40 mm (1.6 inches)86%low
February Weather1°C (34°F)37 mm (1.5 inches)85%low
March Weather2°C (37°F)43 mm (1.7 inches)87%moderate
April Weather6°C (43°F)22 mm (0.9 inches)87%moderate
May Weather11°C (52°F)38 mm (1.5 inches)84%high
June Weather17°C (63°F)44 mm (1.7 inches)86%high
July Weather18°C (65°F)81 mm (3.2 inches)85%high
August Weather18°C (64°F)71 mm (2.8 inches)84%high
September Weather14°C (57°F)57 mm (2.2 inches)83%moderate
October Weather9°C (49°F)70 mm (2.7 inches)85%low
November Weather6°C (43°F)53 mm (2.1 inches)85%low
December Weather2°C (36°F)51 mm (2.0 inches)82%low

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