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September Weather in Helland, Norway

Last updated: August 27, 2025

In September, the average temperature in Helland, Norway hovers around 12°C (54°F). Expect a chilly minimum of 1°C (35°F) and a pleasant maximum of 23°C (74°F). Keep your umbrella handy, as the region experiences an average precipitation of 153 mm (6.0 in) over 15 days. With an average humidity of 90%, it’s wise to prepare for a damp and cool month ahead!

September Temperature in Helland

In September in Helland, the average temperature is 12°C (54°F). Maximums can reach 23°C (74°F) and minimums can drop to as low as 1°C (35°F). This variation makes it essential for travelers to pack layers to accommodate both the warmer days and the cooler evenings.

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

The chart illustrates September temperature patterns in Helland, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Helland, September typically has an average temperature of 12°C (54°F), with highs reaching up to 23°C (74°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec333236425059615954463935
Data source: Temperature data for Helland 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 Helland

In Helland in September, the precipitation amount is 153 mm (6.0 in) over the course of 15 days.

September Precipitation Trends in Helland

The chart displays monthly precipitation patterns in Helland, 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 Helland, September typically receives around 153 mm (6.0 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec10813412347106119150172153207155181
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Helland

In Helland in September, humidity is 90%. With an average temperature of 12°C (54°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities uncomfortable and traveling a bit more draining than usual.

September Average Humidity in Helland

This chart illustrates the average monthly humidity levels in Helland, 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 Helland 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 Helland

In Helland 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 Helland for better planning.

Maximum UV Index Levels in Helland for September

The chart shows the monthly maximum UV Index (UVI) for Helland 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 Helland typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123567764211
Data source: Helland 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 Helland Compares to Other Months

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

This table compares monthly weather conditions in Helland, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)108 mm (4.3 inches)92%low
February Weather0°C (33°F)134 mm (5.3 inches)90%low
March Weather2°C (36°F)123 mm (4.9 inches)90%moderate
April Weather6°C (42°F)47 mm (1.8 inches)87%moderate
May Weather10°C (51°F)106 mm (4.2 inches)84%high
June Weather15°C (59°F)119 mm (4.7 inches)81%high
July Weather16°C (61°F)150 mm (5.9 inches)86%high
August Weather15°C (59°F)172 mm (6.8 inches)87%high
September Weather12°C (54°F)153 mm (6.0 inches)90%moderate
October Weather8°C (47°F)206 mm (8.1 inches)92%low
November Weather4°C (40°F)155 mm (6.1 inches)93%low
December Weather1°C (35°F)181 mm (7.1 inches)90%low

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