Average data for 10 years
1 September
Sunday
+20°
+17°
2 September
Monday
+20°
+15°
3 September
Tuesday
+18°
+15°
4 September
Wednesday
+18°
+16°
5 September
Thursday
+19°
+16°
6 September
Friday
+18°
+16°
7 September
Saturday
+18°
+16°
8 September
Sunday
+19°
+17°
9 September
Monday
+20°
+16°
10 September
Tuesday
+19°
+17°
11 September
Wednesday
+19°
+16°
12 September
Thursday
+19°
+16°
13 September
Friday
+17°
+14°
14 September
Saturday
+17°
+14°
15 September
Sunday
+17°
+14°
16 September
Monday
+17°
+15°
17 September
Tuesday
+17°
+14°
18 September
Wednesday
+17°
+15°
19 September
Thursday
+18°
+15°
20 September
Friday
+17°
+14°
21 September
Saturday
+17°
+14°
22 September
Sunday
+18°
+15°
23 September
Monday
+17°
+15°
24 September
Tuesday
+18°
+15°
25 September
Wednesday
+19°
+16°
26 September
Thursday
+19°
+16°
27 September
Friday
+18°
+16°
28 September
Saturday
+18°
+16°
29 September
Sunday
+17°
+14°
30 September
Monday
+17°
+14°
Cities with similar weather in September
Australia
Sydney
United States
San Francisco
Canada
Vancouver
United States
Seattle
Canada
Montreal
September in Arcata is the warmest month of the year. In September, the weather in Arcata is typically warm. Average daily high temperature in September is about 18 degrees above zero. On average, Arcata has 28 sunny, 1 rainy, and 1 partly cloudy day in September. The rains are usually light. September as well as July and August is considered the most comfortable time to visit Arcata.