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September Weather in Scituate, United States

Last updated: June 24, 2025

In September, the average temperature in Scituate, United States is a pleasant 19°C (66°F). You can expect minimum temperatures dipping to 12°C (53°F), while maximums can reach a warm 30°C (86°F). The region experiences an average precipitation of 107 mm (4.2 in) spread over 9 days, resulting in an overall average humidity of 71%.

September Temperature in Scituate

In September in Scituate, the average temperature is 19°C (66°F), with maximums potentially reaching 30°C (86°F) and minimums dipping as low as 12°C (53°F). This pleasant climate makes it an ideal destination for travelers seeking comfortable weather and enjoyable outdoor activities.

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

The chart illustrates September temperature patterns in Scituate, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Scituate, September typically has an average temperature of 19°C (66°F), with highs reaching up to 30°C (86°F) and lows dropping to around 12°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec343537455363707065574638
Data source: Temperature data for Scituate 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 Scituate

In Scituate in September, the precipitation amount is 107 mm (4.2 in), occurring over a span of 9 days.

September Precipitation Trends in Scituate

The chart displays monthly precipitation patterns in Scituate, 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 Scituate, September typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec971221181591109410467107182115147
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Scituate

In Scituate in September humidity is 71%. With an average temperature of 19°C (66°F), this humidity feels like a warm, balmy embrace that enhances the tropical atmosphere, making it a perfect backdrop for leisurely strolls and outdoor adventures, though it may also lead to a slightly sticky feeling as you explore.

September Average Humidity in Scituate

This chart illustrates the average monthly humidity levels in Scituate, 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 Scituate 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 Scituate

In Scituate 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 Scituate.

Maximum UV Index Levels in Scituate for September

The chart shows the monthly maximum UV Index (UVI) for Scituate 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 Scituate typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997642
Data source: Scituate 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 Scituate Compares to Other Months

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

This table compares monthly weather conditions in Scituate, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)97 mm (3.8 inches)86%low
February Weather2°C (35°F)122 mm (4.8 inches)84%moderate
March Weather3°C (38°F)118 mm (4.7 inches)82%moderate
April Weather7°C (45°F)159 mm (6.3 inches)80%very high
May Weather12°C (54°F)110 mm (4.3 inches)72%very high
June Weather17°C (63°F)94 mm (3.7 inches)72%very high
July Weather21°C (70°F)104 mm (4.1 inches)67%very high
August Weather21°C (71°F)66 mm (2.6 inches)66%very high
September Weather19°C (66°F)107 mm (4.2 inches)71%high
October Weather14°C (58°F)182 mm (7.2 inches)78%high
November Weather8°C (46°F)115 mm (4.5 inches)84%moderate
December Weather3°C (38°F)147 mm (5.8 inches)81%low

Compare Scituate's Climate with Cities Worldwide