Last updated: June 24, 2025
In October, the average temperature in Setauket-East Setauket, United States hovers around 16°C (61°F). You'll experience a range of temperatures, with a minimum of 5°C (41°F) and a maximum of 29°C (84°F). Prepare for the possibility of rain, as 143 mm (5.6 in) of precipitation is expected over 12 days, along with an average humidity of 74%.
In October in Setauket-East Setauket, the average temperature is 16°C (61°F). Maximums can reach 29°C (84°F), while minimums can drop as low as 5°C (41°F). This variation in temperature makes it an ideal time for travelers to enjoy outdoor activities while also packing a light jacket for cooler evenings.
In Setauket-East Setauket in October, the total precipitation amount is 143 mm (5.6 in) over the course of 12 days.
In Setauket-East Setauket 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.
In Setauket-East Setauket 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 Setauket-East Setauket, you can refer to this Hourly UV Index in Setauket-East Setauket.
UV Risk Categories
Weather in Setauket-East Setauket varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Setauket-East Setauket, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (35°F) | 80 mm (3.1 inches) | 84% | moderate |
| February Weather | 2°C (36°F) | 112 mm (4.4 inches) | 82% | moderate |
| March Weather | 4°C (40°F) | 104 mm (4.1 inches) | 81% | high |
| April Weather | 9°C (49°F) | 132 mm (5.2 inches) | 78% | very high |
| May Weather | 14°C (58°F) | 119 mm (4.7 inches) | 69% | very high |
| June Weather | 20°C (68°F) | 87 mm (3.4 inches) | 69% | very high |
| July Weather | 24°C (76°F) | 131 mm (5.2 inches) | 62% | very high |
| August Weather | 24°C (75°F) | 103 mm (4.0 inches) | 65% | very high |
| September Weather | 21°C (70°F) | 94 mm (3.7 inches) | 68% | very high |
| October Weather | 16°C (61°F) | 143 mm (5.6 inches) | 74% | high |
| November Weather | 9°C (49°F) | 103 mm (4.0 inches) | 82% | moderate |
| December Weather | 5°C (40°F) | 140 mm (5.5 inches) | 80% | low |