Climate and Weather Charts
Seattle Sea-Tac Airport (SEA)
(Seattle, Washington - WA, USA)
Seattle features a mild, temperate, marine climate and has gained a rather unfair image of being a wet and rainy city. Much of the year in Seattle is fine, with the driest period falling between the months of May and September, although many days can be somewhat overcast. On average, Seattle experiences around 60 days of sunshine each year.
The summer climate in Seattle is hottest during July and August, when temperatures average 23°C / 73°F, rising to 25°C / 77°F at times. Snowy weather in most likely to arrive during January and February, although temperatures at this time of the year average 8°C / 46°F. The average annual daytime temperatures in Seattle are around 16°C / 60°F.
Climate Description: Mild, temperate, marine climate
Seattle Tacoma Airport (SEA) Location: Northern Hemisphere, USA, Washington
Annual High / Low Daytime Temperatures at Seattle: 24°C / 8°C (75°F / 46°F)
Average Daily January Temperature: 8°C / 46°F
Average Daily June Temperature: 22°C / 72°F
Annual Rainfall / Precipication Seattle at Airport (SEA): 930 mm / 37 inches
Seattle Tacoma Airport (SEA):
Climate and Weather Charts
Temperature Chart |
| Temperatures |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Average |
Maximum
Celcius (°C) |
8 |
9 |
12 |
15 |
19 |
22 |
23 |
24 |
20 |
15 |
11 |
8 |
16 |
Minimum
Celcius (°C) |
2 |
4 |
6 |
7 |
9 |
12 |
13 |
13 |
11 |
9 |
5 |
3 |
8 |
Maximum
Fahrenheit (°F) |
46 |
48 |
54 |
59 |
66 |
72 |
73 |
75 |
68 |
59 |
52 |
46 |
60 |
Minimum
Fahrenheit (°F) |
36 |
39 |
43 |
45 |
48 |
54 |
55 |
55 |
52 |
48 |
41 |
37 |
46 |
Rainfall / Precipitation Chart |
| Rainfall |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Total |
| Rainfall (mm) |
117 |
102 |
94 |
66 |
48 |
38 |
25 |
33 |
41 |
79 |
140 |
147 |
930 |
| Rainfall (inches) |
4.6 |
4.0 |
3.7 |
2.6 |
1.9 |
1.5 |
1.0 |
1.3 |
1.6 |
3.1 |
5.5 |
5.8 |
37 |
Seasonal Chart |
| Seasons |
Average
Temp
(Max °C) |
Average
Temp
(Min °C) |
Average
Temp
(Max °F) |
Average
Temp
(Min °F) |
Total
Rainfall
(mm) |
Total
Rainfall
(inches) |
| Mar to May (Spring) |
15 |
7 |
60 |
45 |
208 |
8 |
| Jun to Aug (Summer) |
23 |
13 |
73 |
55 |
96 |
4 |
| Sept to Nov (Autumn / Fall) |
15 |
8 |
60 |
47 |
260 |
10 |
| Dec to Feb (Winter) |
8 |
3 |
47 |
37 |
366 |
14 |
