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September Weather in Vopnafjoerdur, Iceland

Last updated: August 23, 2025

In September, the average temperature in Vopnafjoerdur, Iceland hovers around 7°C (45°F). Expect a chill, with lows dropping to -2°C (29°F) and highs reaching up to 17°C (63°F). Don't forget your umbrella, as this month brings about 127 mm (5.0 in) of precipitation over 17 days, and prepare for a notably high humidity level of 90%.

September Temperature in Vopnafjoerdur

In September in Vopnafjoerdur, the average temperature is 7°C (45°F), with maximums reaching 17°C (63°F) and minimums dropping as low as -2°C (29°F). Be prepared for a mix of cool and mild weather, making it a great time for exploration with the right layering of clothing.

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

The chart illustrates September temperature patterns in Vopnafjoerdur, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vopnafjoerdur, September typically has an average temperature of 7°C (45°F), with highs reaching up to 17°C (63°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec303031343844494845383331
Data source: Temperature data for Vopnafjoerdur 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 Vopnafjoerdur

In Vopnafjoerdur in September, the precipitation amount is 127 mm (5.0 in) over the course of 17 days.

September Precipitation Trends in Vopnafjoerdur

The chart displays monthly precipitation patterns in Vopnafjoerdur, 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 Vopnafjoerdur, September typically receives around 127 mm (5.0 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec1111311327074938590127180131179
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Vopnafjoerdur

In Vopnafjoerdur in September humidity is 90%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and prompting travelers to seek shelter indoors or in cozy cafes.

September Average Humidity in Vopnafjoerdur

This chart illustrates the average monthly humidity levels in Vopnafjoerdur, 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 Vopnafjoerdur is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%85%87%86%88%90%93%91%90%90%88%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Vopnafjoerdur

In Vopnafjoerdur in September, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Vopnafjoerdur, you can check the information here.

Maximum UV Index Levels in Vopnafjoerdur for September

The chart shows the monthly maximum UV Index (UVI) for Vopnafjoerdur 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 Vopnafjoerdur typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112356543211
Data source: Vopnafjoerdur 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 Vopnafjoerdur Compares to Other Months

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

This table compares monthly weather conditions in Vopnafjoerdur, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)111 mm (4.4 inches)84%low
February Weather-1°C (30°F)131 mm (5.2 inches)85%low
March Weather0°C (31°F)132 mm (5.2 inches)87%low
April Weather1°C (34°F)70 mm (2.7 inches)86%moderate
May Weather4°C (39°F)74 mm (2.9 inches)88%moderate
June Weather7°C (45°F)93 mm (3.7 inches)90%high
July Weather9°C (49°F)85 mm (3.4 inches)93%moderate
August Weather9°C (49°F)90 mm (3.6 inches)91%moderate
September Weather7°C (45°F)127 mm (5.0 inches)90%moderate
October Weather3°C (38°F)180 mm (7.1 inches)90%low
November Weather0°C (33°F)131 mm (5.2 inches)88%low
December Weather-1°C (31°F)178 mm (7.0 inches)85%low

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