This page is a single place to check Suwon climate: monthly averages. Suwon runs from -3.3 C in Jan to 24.9 C in Aug, a swing of 28.2 C. Rain is strongly seasonal: Jul is the wettest month at 11.63 mm/day, while Jan runs at 0.64 mm/day, about 18.2x drier. Taken together that is roughly 1,231 mm of rain a year for the grid cell. Values come from a public open API; a successful result is cached so a later outage never blanks the page. Use the table for exact numbers, or the related pages below for neighbouring locations and periods.
Annual mean temperature 11.3 C
Warmest month Aug (24.9 C)
Coldest month Jan (-3.3 C)
Wettest month Jul (11.63 mm/day)
All-time record high 35.4 C
All-time record low -21.3 C
Annual precipitation 1,237 mm / year
Coordinates 37.2911, 127.0089
Population 1,234,582
Average monthly temperature and rainfall in Suwon
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
-3.3
0.64
13.3
-21.3
Feb
-0.9
1.08
15.0
-19.0
Mar
3.7
1.20
18.3
-9.3
Apr
9.8
2.40
25.2
-2.7
May
15.8
2.70
28.7
3.9
Jun
20.9
3.87
32.4
9.5
Jul
24.0
11.63
33.8
16.1
Aug
24.9
8.40
35.4
14.3
Sep
20.4
4.59
29.4
8.6
Oct
13.9
1.72
26.8
-1.3
Nov
6.5
1.56
21.2
-5.2
Dec
-1.0
0.71
14.3
-16.5
What the Suwon climate table shows
Values are multi-decadal climatological averages for the 37.2911, 127.0089 grid cell, not a single year. Rain is the daily mean, so a value of 2.00 mm/day is about 60 mm across a 30-day month. Averages smooth over extremes, so use them for planning rather than for what to pack for next Tuesday.
Frequently asked questions
How much rain is 11.63 mm/day in a month?
Rain is recorded as a daily mean, so 11.63 mm/day is roughly 354 mm across a 30-day month.
Does Suwon get the same every year?
Close to it. Averaging decades smooths variation, so treat these as typical rather than guaranteed.