September Weather in Kittery Point, United States

Last updated: June 24, 2025

In September, the average temperature in Kittery Point, United States hovers around 18°C (65°F). You'll experience a minimum of 7°C (46°F) and a maximum reaching up to 30°C (86°F), making it a delightful time to explore. However, be prepared for some rain, as the region receives about 78 mm (3.1 in) of precipitation over approximately 8 days. With an average humidity of 71%, the weather balances warmth and moisture, creating a unique atmosphere.

September Temperature in Kittery Point

In September in Kittery Point, the average temperature is 18°C (65°F), with maximums reaching up to 30°C (86°F) and minimums dropping as low as 7°C (46°F). This mild climate makes Kittery Point an ideal destination for outdoor activities and sightseeing during this time of year.

September Weather in Kittery Point: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Kittery Point, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kittery Point, September typically has an average temperature of 18°C (65°F), with highs reaching up to 30°C (86°F) and lows dropping to around 7°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec303236465565717165554334
Data source: Temperature data for Kittery Point 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 Kittery Point

In Kittery Point in September, the total precipitation amount is 78 mm (3.1 in) over the course of 8 days.

September Precipitation Trends in Kittery Point

The chart displays monthly precipitation patterns in Kittery Point, 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 Kittery Point, September typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec79989414383881237178143108133
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kittery Point

In Kittery Point in September humidity is 71%. With an average temperature of 18°C (65°F), this humidity feels like a warm embrace, making it a bit sticky and muggy, which can be slightly uncomfortable for traveling, especially if you're engaging in outdoor activities or exploring the city on foot.

September Average Humidity in Kittery Point

This chart illustrates the average monthly humidity levels in Kittery Point, 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 Kittery Point is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%82%80%72%72%67%66%71%79%84%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kittery Point

In Kittery Point 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 Kittery Point.

Maximum UV Index Levels in Kittery Point for September

The chart shows the monthly maximum UV Index (UVI) for Kittery Point 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 Kittery Point typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910997532
Data source: Kittery Point 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 Kittery Point Compares to Other Months

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

This table compares monthly weather conditions in Kittery Point, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)79 mm (3.1 inches)86%low
February Weather0°C (32°F)98 mm (3.9 inches)84%moderate
March Weather2°C (36°F)94 mm (3.7 inches)82%moderate
April Weather8°C (46°F)143 mm (5.6 inches)80%high
May Weather13°C (55°F)83 mm (3.3 inches)72%very high
June Weather18°C (65°F)88 mm (3.5 inches)72%very high
July Weather22°C (71°F)123 mm (4.8 inches)67%very high
August Weather22°C (71°F)71 mm (2.8 inches)66%very high
September Weather18°C (65°F)78 mm (3.1 inches)71%high
October Weather13°C (56°F)142 mm (5.6 inches)78%moderate
November Weather6°C (43°F)108 mm (4.3 inches)84%moderate
December Weather1°C (34°F)133 mm (5.2 inches)81%low

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