Irvine, CA vs Seattle, WA

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

Irvine is warmer than Seattle (64.9°F vs 53.8°F annual avg) and drier than it (14.1 in vs 36.5 in per year). Irvine has a Semi-arid (hot) climate; Seattle a Warm-summer Mediterranean climate.

Irvine, CA

Annual avg
64.9°F
Annual precip
14.1 in
Warmest month
August (87.3°F)
Coldest month
December (42.8°F)
Annual swing
19.6°F
Pleasant months
2 / 12
Semi-arid (hot) BSh USDA Zone 9b

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

Irvine

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 Irvine Seattle
High Low Precip High Low Precip
January 67.8°F 43.3°F 3.09 in 48.6°F 36.8°F 5.21 in
February 69.1°F 44.6°F 3.39 in 50.7°F 36.8°F 3.71 in
March 71.7°F 47.8°F 2.11 in 54.8°F 39.4°F 3.94 in
April 74.2°F 49.6°F 0.80 in 59.8°F 43.6°F 2.89 in
May 76.6°F 54.6°F 0.32 in 66.5°F 49.3°F 1.98 in
June 79.6°F 58.2°F 0.09 in 71.2°F 54.0°F 1.22 in
July 85.1°F 61.4°F 0.01 in 77.3°F 57.5°F 0.56 in
August 87.3°F 63.1°F 0.00 in 77.4°F 58.1°F 0.83 in
September 86.8°F 61.1°F 0.18 in 71.7°F 53.9°F 1.37 in
October 83.6°F 54.8°F 0.67 in 61.0°F 46.4°F 3.49 in
November 75.9°F 47.3°F 1.21 in 53.0°F 39.9°F 5.80 in
December 69.9°F 42.8°F 2.25 in 47.8°F 36.2°F 5.49 in
Irvine overview
Full climate profile
Seattle overview
Full climate profile