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September Weather in Klawock, United States

Last updated: June 24, 2025

In September, the average temperature in Klawock, United States hovers around 11°C (53°F). Expect a minimum of 2°C (37°F) and a maximum of 24°C (76°F). Be prepared for some rain, as the area sees an average precipitation amount of 210 mm (8.3 in) over 17 days. Additionally, with an average humidity of 91%, the air can feel quite damp.

September Temperature in Klawock

In September in Klawock, the average temperature is 11°C (53°F), with maximums reaching up to 24°C (76°F) and minimums dropping as low as 2°C (37°F). This mild weather makes Klawock an ideal destination for travelers looking to enjoy comfortable outdoor activities.

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

The chart illustrates September temperature patterns in Klawock, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Klawock, September typically has an average temperature of 11°C (53°F), with highs reaching up to 24°C (76°F) and lows dropping to around 2°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec363438424852565653454137
Data source: Temperature data for Klawock 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 Klawock

In Klawock in September, the precipitation amount is 210 mm (8.3 in) over a span of 17 days.

September Precipitation Trends in Klawock

The chart displays monthly precipitation patterns in Klawock, 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 Klawock, September typically receives around 210 mm (8.3 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec196161173176109172157195210226280236
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Klawock

In Klawock in September, humidity is 91%. With an average temperature of 11°C (53°F), this humidity feels like a damp embrace, making travel feel weighty and exhausting, as the thick air clings to your skin and makes every step a little more effortful.

September Average Humidity in Klawock

This chart illustrates the average monthly humidity levels in Klawock, 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 Klawock is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%82%82%86%91%95%94%91%86%83%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Klawock

In Klawock in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Klawock.

Maximum UV Index Levels in Klawock for September

The chart shows the monthly maximum UV Index (UVI) for Klawock 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 Klawock typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123467875311
Data source: Klawock 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 Klawock Compares to Other Months

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

This table compares monthly weather conditions in Klawock, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)196 mm (7.7 inches)86%low
February Weather1°C (35°F)161 mm (6.3 inches)86%low
March Weather3°C (38°F)173 mm (6.8 inches)82%moderate
April Weather6°C (43°F)176 mm (6.9 inches)82%moderate
May Weather9°C (48°F)109 mm (4.3 inches)86%high
June Weather11°C (52°F)172 mm (6.8 inches)91%high
July Weather13°C (56°F)157 mm (6.2 inches)94%very high
August Weather13°C (57°F)195 mm (7.7 inches)94%high
September Weather11°C (53°F)210 mm (8.3 inches)91%moderate
October Weather7°C (45°F)226 mm (8.9 inches)86%moderate
November Weather5°C (41°F)280 mm (11.0 inches)83%low
December Weather3°C (37°F)236 mm (9.3 inches)86%low

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