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October Weather in Iselin, United States

Last updated: June 24, 2025

In October, the average temperature in Iselin, United States hovers around 16°C (61°F), with a range that can dip to a chilly 3°C (37°F) and soar to a sweltering 34°C (93°F). Expect about 130 mm (5.1 in) of precipitation spread over 10 days, contributing to an average humidity of 74%. Be prepared for varying weather conditions!

October Temperature in Iselin

In October in Iselin, the average temperature is 16°C (61°F). The maximum can reach 34°C (93°F), and the minimum can be as low as 3°C (37°F). This makes it an ideal destination for travelers seeking a mix of pleasant warmth and cooler evenings, perfect for outdoor activities and exploring the local culture.

October Weather in Iselin: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Iselin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iselin, October typically has an average temperature of 16°C (61°F), with highs reaching up to 34°C (93°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec343743536372787670614639
Data source: Temperature data for Iselin 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 Iselin

In Iselin in October, the precipitation amount is 130 mm (5.1 in) over a period of 10 days.

October Precipitation Trends in Iselin

The chart displays monthly precipitation patterns in Iselin, 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 Iselin, October typically receives around 130 mm (5.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec66107103111118941441269113082102
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Iselin

In Iselin in October humidity is 74%. With an average temperature of 16°C (61°F), this humidity feels like a damp blanket wrapping around you, making traveling quite uncomfortable as the air feels thick and muggy, potentially leading to fatigue and a longing for a cool breeze.

October Average Humidity in Iselin

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

In Iselin 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 Iselin, you can refer to this Hourly UV Index in Iselin.

Maximum UV Index Levels in Iselin for October

The chart shows the monthly maximum UV Index (UVI) for Iselin 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 Iselin typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356810101098642
Data source: Iselin 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 Iselin Compares to Other Months

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

This table compares monthly weather conditions in Iselin, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (35°F)66 mm (2.6 inches)84%moderate
February Weather3°C (37°F)107 mm (4.2 inches)82%moderate
March Weather6°C (43°F)103 mm (4.0 inches)81%high
April Weather12°C (53°F)111 mm (4.4 inches)78%very high
May Weather17°C (63°F)118 mm (4.6 inches)69%very high
June Weather22°C (73°F)94 mm (3.7 inches)69%very high
July Weather26°C (79°F)144 mm (5.6 inches)62%very high
August Weather25°C (77°F)126 mm (5.0 inches)65%very high
September Weather21°C (71°F)91 mm (3.6 inches)68%very high
October Weather16°C (61°F)130 mm (5.1 inches)74%high
November Weather8°C (47°F)82 mm (3.2 inches)82%moderate
December Weather4°C (39°F)102 mm (4.0 inches)80%low

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