Last updated: June 24, 2025
In September, the average temperature in Anacortes, United States hovers around 15°C (60°F). Expect a range where the minimum can dip to 8°C (47°F) and the maximum can reach up to 26°C (78°F). During this time, you might experience 112 mm (4.4 in) of precipitation spread across 11 days, with an average humidity of 76%. Prepare accordingly for a blend of mild temperatures and occasional rain!
In September in Anacortes, the average temperature is 15°C (60°F). Maximum temperatures can reach 26°C (78°F), while minimums can dip as low as 8°C (47°F). This pleasant climate makes it an ideal time for travelers to explore and enjoy outdoor activities.
In Anacortes in September, the precipitation amount is 112 mm (4.4 in) that occurs over the course of 11 days.
In Anacortes in September humidity is 76%. With an average temperature of 15°C (60°F), this humidity feels like a warm, damp blanket wrapping around you, making outdoor activities a bit more challenging and urging you to stay hydrated while exploring the area.
In Anacortes 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 Anacortes.
UV Risk Categories
Weather in Anacortes varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Anacortes, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 5°C (42°F) | 171 mm (6.7 inches) | 86% | low |
February Weather | 4°C (40°F) | 175 mm (6.9 inches) | 85% | moderate |
March Weather | 7°C (44°F) | 137 mm (5.4 inches) | 86% | moderate |
April Weather | 9°C (49°F) | 102 mm (4.0 inches) | 86% | high |
May Weather | 12°C (55°F) | 61 mm (2.4 inches) | 81% | very high |
June Weather | 15°C (59°F) | 52 mm (2.0 inches) | 83% | very high |
July Weather | 17°C (63°F) | 21 mm (0.8 inches) | 84% | very high |
August Weather | 18°C (64°F) | 18 mm (0.7 inches) | 77% | very high |
September Weather | 15°C (60°F) | 112 mm (4.4 inches) | 76% | high |
October Weather | 11°C (51°F) | 166 mm (6.5 inches) | 88% | moderate |
November Weather | 8°C (46°F) | 226 mm (8.9 inches) | 87% | low |
December Weather | 5°C (41°F) | 199 mm (7.8 inches) | 87% | low |