Weather in September 2025

Astoria weather in September 2025

The temperatures in Astoria in September are usually low and can range between 12°C and 19°C.

You can expect about 3 to 8 days of rain in Astoria during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.

Our weather forecast can give you a great sense of what weather to expect in Astoria in September 2025.

If you’re planning to visit Astoria in the near future, we highly recommend that you review the 14 day weather forecast for Astoria before you arrive.

Temperatures
Temperatures
19° / 12°
Rainy Days
Rainy Days
6
Snowy Days
Snowy Days
0
Dry Days
Dry Days
24
Rainfall
Rainfall
69
mm
7.0
Sun Hours
7.0
Hrs

Astoria annual weather

Month Temperatures Rainy Days Dry Days Snowy Days Rainfall Weather More details
January 8° / 4° 14 17 0 235 mm
Bad
February 8° / 3° 12 15 1 162 mm
Bad
March 9° / 4° 14 17 0 189 mm
Bad
April 11° / 5° 10 20 0 153 mm
Bad
May 14° / 8° 7 24 0 81 mm
Ok
June 17° / 10° 4 26 0 45 mm
Good
July 19° / 12° 1 30 0 13 mm
Good
August 20° / 12° 2 29 0 18 mm
Good
September 19° / 12° 6 24 0 69 mm
Good
October 15° / 9° 10 21 0 176 mm
Ok
November 10° / 6° 14 16 0 255 mm
Bad
December 7° / 3° 14 17 0 239 mm
Bad
Temperatures in Astoria in September
Rain in Astoria in September

Weather in Astoria in September - FAQ

What is the average temperature in Astoria in September?
The average temperature in Astoria in September is 12/19° C.
What is the chance of rain in Astoria in September?
On average, there are 6 rainy days in Astoria during September.
Weather wise, is September a good time to visit Astoria?
The weather in Astoria in September is good.
Can it snow in Astoria in September?
On average, there are 0 snowy days in Astoria in September.
More about the weather in Astoria