Morro Bay, CA vs Seattle, WA

Side-by-side comparison of monthly climate normals (NOAA 1991-2020).

Morro Bay is warmer than Seattle (59.5°F vs 53.8°F annual avg) and drier than it (17 in vs 36.5 in per year). Both cities share a Warm-summer Mediterranean climate (Csb).

Morro Bay, CA

Annual avg
59.5°F
Annual precip
17 in
Warmest month
October (72.5°F)
Coldest month
December (46.2°F)
Annual swing
8.3°F
Pleasant months
7 / 12
Warm-summer Mediterranean Csb USDA Zone 10a

Seattle, WA

Annual avg
53.8°F
Annual precip
36.5 in
Warmest month
August (77.4°F)
Coldest month
December (36.2°F)
Annual swing
25.8°F
Pleasant months
4 / 12
Warm-summer Mediterranean Csb USDA Zone 9a

Best months to visit each city

Morro Bay

J
F
M
A
M
J
J
A
S
O
N
D

Seattle

J
F
M
A
M
J
J
A
S
O
N
D

Month-by-month comparison

Month Morro Bay Seattle
High Low Precip High Low Precip
January 65.1°F 46.4°F 3.64 in 48.6°F 36.8°F 5.21 in
February 65.4°F 47.8°F 3.62 in 50.7°F 36.8°F 3.71 in
March 66.0°F 48.6°F 3.19 in 54.8°F 39.4°F 3.94 in
April 67.3°F 49.2°F 0.99 in 59.8°F 43.6°F 2.89 in
May 66.9°F 51.7°F 0.42 in 66.5°F 49.3°F 1.98 in
June 66.4°F 53.6°F 0.20 in 71.2°F 54.0°F 1.22 in
July 67.2°F 56.5°F 0.07 in 77.3°F 57.5°F 0.56 in
August 69.7°F 56.8°F 0.02 in 77.4°F 58.1°F 0.83 in
September 71.5°F 56.0°F 0.09 in 71.7°F 53.9°F 1.37 in
October 72.5°F 54.4°F 0.68 in 61.0°F 46.4°F 3.49 in
November 69.1°F 50.2°F 1.33 in 53.0°F 39.9°F 5.80 in
December 64.6°F 46.2°F 2.75 in 47.8°F 36.2°F 5.49 in
Morro Bay overview
Full climate profile
 Seattle overview
Full climate profile