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September Weather in Fair Haven, United States

Last updated: June 24, 2025

In Fair Haven, United States during September, the average temperature is a pleasant 17°C (63°F). Expect a minimum of -1°C (30°F) and a maximum of 32°C (91°F), showcasing the month’s versatile climate. Prepare for precipitation totaling 69 mm (2.7 in) over approximately 7 days, along with an average humidity of 72%. A mix of conditions makes for an intriguing time of year!

September Temperature in Fair Haven

In September in Fair Haven, the average temperature is 17°C (63°F). The maximum can reach 32°C (91°F), while the minimum can be as low as -1°C (30°F). This variability makes it essential to pack layers and be prepared for both warm and cool weather during your travels.

September Weather in Fair Haven: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Fair Haven, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fair Haven, September typically has an average temperature of 17°C (63°F), with highs reaching up to 32°C (91°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec232532455766727063513628
Data source: Temperature data for Fair Haven 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 Fair Haven

In Fair Haven in September, the precipitation amount is 69 mm (2.7 in) over the course of 7 days.

September Precipitation Trends in Fair Haven

The chart displays monthly precipitation patterns in Fair Haven, 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 Fair Haven, September typically receives around 69 mm (2.7 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec7986741188780114836913910290
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Fair Haven

In Fair Haven in September, humidity is 72%. With an average temperature of 17°C (63°F), this humidity feels like a muggy embrace, making outdoor activities a bit sticky and requiring plenty of hydration for a comfortable travel experience.

September Average Humidity in Fair Haven

This chart illustrates the average monthly humidity levels in Fair Haven, 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 Fair Haven is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%84%76%72%67%64%72%81%87%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Fair Haven

In Fair Haven in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Fair Haven.

Maximum UV Index Levels in Fair Haven for September

The chart shows the monthly maximum UV Index (UVI) for Fair Haven 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 Fair Haven typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3458910997532
Data source: Fair Haven 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 Fair Haven Compares to Other Months

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

This table compares monthly weather conditions in Fair Haven, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)79 mm (3.1 inches)89%moderate
February Weather-4°C (26°F)86 mm (3.4 inches)88%moderate
March Weather0°C (32°F)74 mm (2.9 inches)86%moderate
April Weather7°C (45°F)118 mm (4.7 inches)84%very high
May Weather14°C (57°F)87 mm (3.4 inches)76%very high
June Weather19°C (66°F)80 mm (3.2 inches)72%very high
July Weather22°C (72°F)114 mm (4.5 inches)66%very high
August Weather21°C (70°F)83 mm (3.3 inches)64%very high
September Weather17°C (63°F)69 mm (2.7 inches)72%high
October Weather11°C (51°F)139 mm (5.5 inches)81%moderate
November Weather2°C (37°F)102 mm (4.0 inches)87%moderate
December Weather-2°C (28°F)90 mm (3.5 inches)84%low

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