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September Weather in Van Etten, United States

Last updated: June 24, 2025

In Van Etten, United States, the average temperature during September hovers around 17°C (63°F). However, be prepared for some temperature fluctuations, as it can dip to a chilly -1°C (31°F) or soar up to a warm 32°C (90°F). Expect 99 mm (3.9 in) of precipitation spread over 9 days, accompanied by an average humidity level of 78%.

September Temperature in Van Etten

In September in Van Etten, the average temperature is 17°C (63°F), with maximums reaching up to 32°C (90°F) and minimums dropping as low as -1°C (31°F). It's essential to pack layers and be prepared for varying weather conditions while enjoying your travels.

September Weather in Van Etten: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Van Etten, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Van Etten, September typically has an average temperature of 17°C (63°F), with highs reaching up to 32°C (90°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec252834465866717063533831
Data source: Temperature data for Van Etten 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 Van Etten

In Van Etten in September, the precipitation amount is 99 mm (3.9 in) during a span of 9 days.

September Precipitation Trends in Van Etten

The chart displays monthly precipitation patterns in Van Etten, 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 Van Etten, September typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec758986123133102142106991458992
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Van Etten

In Van Etten in September, humidity is 78%. With an average temperature of 17°C (63°F), this humidity feels like a warm, enveloping blanket, making traveling slightly uncomfortable as you navigate the sticky air, prompting the need for frequent breaks in cooler, shaded areas.

September Average Humidity in Van Etten

This chart illustrates the average monthly humidity levels in Van Etten, 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 Van Etten is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%87%88%82%79%78%76%78%84%89%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Van Etten

In Van Etten in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Van Etten.

Maximum UV Index Levels in Van Etten for September

The chart shows the monthly maximum UV Index (UVI) for Van Etten 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 Van Etten typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346810101098642
Data source: Van Etten 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 Van Etten Compares to Other Months

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

This table compares monthly weather conditions in Van Etten, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)75 mm (2.9 inches)90%moderate
February Weather-2°C (28°F)89 mm (3.5 inches)90%moderate
March Weather1°C (35°F)86 mm (3.4 inches)87%high
April Weather8°C (46°F)123 mm (4.8 inches)88%very high
May Weather14°C (58°F)133 mm (5.3 inches)82%very high
June Weather19°C (66°F)102 mm (4.0 inches)79%very high
July Weather22°C (72°F)142 mm (5.6 inches)78%very high
August Weather21°C (70°F)106 mm (4.2 inches)76%very high
September Weather17°C (63°F)99 mm (3.9 inches)78%very high
October Weather12°C (53°F)145 mm (5.7 inches)84%high
November Weather3°C (38°F)89 mm (3.5 inches)89%moderate
December Weather-1°C (31°F)92 mm (3.6 inches)86%low

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