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September Weather in Sveio, Norway

Last updated: August 27, 2025

In September, the average temperature in Sveio, Norway hovers around 13°C (56°F), with a minimum dipping to 6°C (44°F) and a maximum reaching 20°C (69°F). Expect heavy precipitation of 239 mm (9.4 in) over approximately 19 days, coupled with an average humidity of a balmy 90%.

September Temperature in Sveio

In September in Sveio, the average temperature is 13°C (56°F). Maximums can reach 20°C (69°F), while minimums can dip as low as 6°C (44°F). This mild climate makes Sveio an ideal destination for travelers seeking a comfortable environment to explore.

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

The chart illustrates September temperature patterns in Sveio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sveio, September typically has an average temperature of 13°C (56°F), with highs reaching up to 20°C (69°F) and lows dropping to around 6°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec393840445057596056504541
Data source: Temperature data for Sveio 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 Sveio

In Sveio in September, the precipitation amount is 239 mm (9.4 in) over the course of 19 days.

September Precipitation Trends in Sveio

The chart displays monthly precipitation patterns in Sveio, 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 Sveio, September typically receives around 239 mm (9.4 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec1581611559378124127211239315208211
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sveio

In Sveio in September, humidity is 90%. With an average temperature of 13°C (56°F), this humidity feels like a moist blanket enveloping you, making every step sticky and muggy, and forcing you to take frequent breaks in the shade as you explore the scenery.

September Average Humidity in Sveio

This chart illustrates the average monthly humidity levels in Sveio, 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 Sveio is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%90%87%84%81%86%87%90%92%93%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sveio

In Sveio 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 Sveio for better planning.

Maximum UV Index Levels in Sveio for September

The chart shows the monthly maximum UV Index (UVI) for Sveio 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 Sveio typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113457654211
Data source: Sveio 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 Sveio Compares to Other Months

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

This table compares monthly weather conditions in Sveio, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)158 mm (6.2 inches)92%low
February Weather3°C (39°F)161 mm (6.3 inches)90%low
March Weather5°C (40°F)155 mm (6.1 inches)90%moderate
April Weather7°C (44°F)93 mm (3.7 inches)87%moderate
May Weather10°C (50°F)78 mm (3.1 inches)84%moderate
June Weather14°C (57°F)124 mm (4.9 inches)81%high
July Weather15°C (59°F)127 mm (5.0 inches)86%high
August Weather15°C (60°F)211 mm (8.3 inches)87%moderate
September Weather13°C (56°F)239 mm (9.4 inches)90%moderate
October Weather10°C (51°F)315 mm (12.4 inches)92%low
November Weather7°C (45°F)208 mm (8.2 inches)93%low
December Weather5°C (41°F)211 mm (8.3 inches)90%low

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