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October Weather in Old Saybrook, United States

Last updated: June 24, 2025

In Old Saybrook, United States, the average temperature in October hovers around 16°C (60°F), with a minimum of 4°C (39°F) and a maximum reaching 27°C (81°F). Expect 151 mm (5.9 in) of precipitation spread over approximately 13 days, accompanied by an average humidity level of 74%.

October Temperature in Old Saybrook

In October in Old Saybrook, the average temperature is 16°C (60°F). Maximum temperatures can reach 27°C (81°F), while the minimum can drop to as low as 4°C (39°F). This mild climate makes Old Saybrook an ideal destination for travelers seeking comfortable weather for outdoor activities.

October Weather in Old Saybrook: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Old Saybrook, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Old Saybrook, October typically has an average temperature of 16°C (60°F), with highs reaching up to 27°C (81°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec343539475666737468604839
Data source: Temperature data for Old Saybrook 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.

October Precipitation in Old Saybrook

In Old Saybrook in October, the precipitation amount is 151 mm (5.9 in) over the course of 13 days.

October Precipitation Trends in Old Saybrook

The chart displays monthly precipitation patterns in Old Saybrook, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Old Saybrook, October typically receives around 151 mm (5.9 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec83113105141119821289498151106151
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Old Saybrook

In Old Saybrook in October humidity is 74%. With an average temperature of 16°C (60°F), this humidity feels like a damp blanket enveloping you, making traveling a bit uncomfortable as you navigate the sticky air and potentially limiting your energy for exploring the sights.

October Average Humidity in Old Saybrook

This chart illustrates the average monthly humidity levels in Old Saybrook, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Old Saybrook is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Old Saybrook

In Old Saybrook in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Old Saybrook, you can refer to this Hourly UV Index in Old Saybrook.

Maximum UV Index Levels in Old Saybrook for October

The chart shows the monthly maximum UV Index (UVI) for Old Saybrook in October, 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 October, the maximum UV index in Old Saybrook typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35689101098642
Data source: Old Saybrook October 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 October Weather in Old Saybrook Compares to Other Months

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

This table compares monthly weather conditions in Old Saybrook, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)83 mm (3.3 inches)84%moderate
February Weather2°C (35°F)113 mm (4.4 inches)82%moderate
March Weather4°C (39°F)105 mm (4.1 inches)81%high
April Weather8°C (47°F)141 mm (5.5 inches)78%very high
May Weather13°C (56°F)119 mm (4.7 inches)69%very high
June Weather19°C (66°F)82 mm (3.2 inches)69%very high
July Weather23°C (74°F)128 mm (5.1 inches)62%very high
August Weather23°C (74°F)94 mm (3.7 inches)65%very high
September Weather20°C (69°F)98 mm (3.9 inches)68%very high
October Weather16°C (60°F)151 mm (5.9 inches)74%high
November Weather9°C (48°F)106 mm (4.2 inches)82%moderate
December Weather4°C (39°F)151 mm (6.0 inches)80%low

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